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350-501 Practice Exam Questions and Answers

Implementing and Operating Cisco Service Provider Network Core Technologies (350-501 SPCOR)

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Question # 1

A network operator needs to implement PIM-SSM multicast configuration on customer's network so that users in different domains are able to access and stream live traffic. Which two actions must the engineer perform on the network

to make the streaming work? (Choose two.)

Options:

A.  

Configure at least one MSDP peer on the network

B.  

Enable IGMP version 2 at the interface lever.

C.  

Enable PIM sparse mode on the device.

D.  

Enable IGMP version 3 at the interface level.

E.  

Enable PM dense mode on the device.

Discussion 0
Question # 2

Refer to the exhibit.

Question # 2

Router R1 is reporting that its BGP neighbor adjacency to router R2 is down, but its state is Active as shown. Which configuration must be applied to routers R1 and R2 to fix the problem?

A)

Question # 2

B)

Question # 2

C)

Question # 2

D)

Question # 2

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 3

Question # 3

Refer to the exhibit. A service provider engineer Is configuring the connection between CE1 and CE2. AS 200 of the service provider and AS 100 of enterprise ABC should connect using BGP. The engineer already completed the configuration of VRF RT 100:10 of enterprise AB

C.  

Which configuration must the engineer apply on PE1 to meet the requirement?

Question # 3

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 4

Refer to the exhibit:

Question # 4

A network engineer is implementing an OSPF configuration Based on the output, which statement is true?

Options:

A.  

In the ospfv3 1 area 1 ipv4 command, area 0 must be configured instead of area 1.

B.  

OSPFv3 does not run for IPv4 on FastEthemet0/0 until IPv6 routing is enabled on the router and IPv6 is enabled on interface Fastfc.thernet0/0

C.  

OSPFv3 cannot be configured for IPv4; OSPFv3 works only for IPv6.

D.  

IPv6 routing not enabled" is just an informational message and OSPFv3 runs for IPv4 on interface FastEthernet0/0 anyway

Discussion 0
Question # 5

Which three OSPF parameters must match before two devices can establish an OSPF adjacency? (Choose three.)

Options:

A.  

IP address

B.  

interface cost

C.  

subnet mask

D.  

process ID

E.  

hello timer setting

F.  

area number

Discussion 0
Question # 6

You are configuring MPLS traffic-engineering tunnels in the core.

Which two ways exist for the tunnel path across the core? (Choose two )

Options:

A.  

Tunnel links inherit IGP metrics by default unless overridden

B.  

Tunnels can be configured with dynamic path or explicitly defined path

C.  

A zero bandwidth tunnel is not a valid option

D.  

The bandwidth statement creates a "hard" reservation on the link-The dynamic path option is supported only with IS-IS

Discussion 0
Question # 7

Which utility must be used to locate MPLS faults?

Options:

A.  

QoS

B.  

MPLS LSP ping

C.  

MPLStraceroute

D.  

EEM

Discussion 0
Question # 8

Which two PHY modes are available to implement an IOS XR Gigabit Ethernet interface interface? (Choose two.)

Options:

A.  

SONET

B.  

MAN

C.  

WDWM

D.  

LAN

E.  

WAN

Discussion 0
Question # 9

Exhibit:

Question # 9

A network engineer must update the routing toward the web server with IP address 35.22.13.1. The primary path must be configured via the neighbor router with ID 1.1.1.1. However, local-preference configuration is not permitted on R1. Which task must the engineer perform on R1 to complete the implementation?

Options:

A.  

Configure the device to choose the best MED from the same AS.

B.  

Set the device to ignore the conditional MED if the route originated in a different autonomous system.

C.  

Enable MED comparison between routes from neighbors in different AS.

D.  

Implement deterministic MED to choose the best route from the different AS.

Discussion 0
Question # 10

Refer to the exhibit:

Question # 10

If router A is the RP, which PIM mode can you configure so that devices will send multicast traffic toward the RP?

Options:

A.  

PIM-SM

B.  

PI MM-DM

C.  

BIDIR-PIM

D.  

PIM-SSM

Discussion 0
Question # 11

Refer to the exhibit.

Question # 11

A network operator has two IPv4 and IPv6 dual-stacked network on each side of the IPv4 core network. The operator must be able to provide connectivity between them while using specific assigned IPv6 space provided from the company IP administrator team. Which technology should the network operator use to accomplish this goal?

Options:

A.  

6rd

B.  

NAT46

C.  

DS-Lite

D.  

NAT44

Discussion 0
Question # 12

A network engineer is deploying VPLS configuration between multiple PE routers so that customer's remote offices have end-to-end LAN connectivity. Which additional configuration should the engineer perform on the PE routers to enable the virtual switch instance?

A)

Question # 12

B)

Question # 12

C)

Question # 12

D)

Question # 12

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 13

The network team is planning to implement IPv6 on the company’s existing IPv4 network infrastructure. The network currently uses IS-IS to share routes between peers. Which task must the team perform so that IS-IS will run in multitopology mode on the updated IPv6 network?

Options:

A.  

Configure the links between the network routers as point-to-point.

B.  

Configure the network routers to use metric-style wide.

C.  

Configure the network routers as Level 2 routers.

D.  

Configure the IS-IS IPv6 metric on the dual-stack links.

Discussion 0
Question # 14

A network engineer has configured TE tunnels in the MPLS provider core. Which two steps ensure traffic traverse? (Choose two.)

Options:

A.  

Static routes is the only option for directing traffic into a tunnel.

B.  

ECMP between tunnels allows RSVP to function correctly.

C.  

Forwarding adjacency features allows a tunnel to be Installed in the IGP table as a link.

D.  

The IGP metric of a tunnel is configured to prefer a certain path

E.  

A tunnel weight is configured in SPF database the same way as a native link.

Discussion 0
Question # 15

After you analyze your network environment, you decide to implement a full separation model for Internet access and MPLS L3VPN services For which reason do you make this decision?

Options:

A.  

It enables you to choose whether to separate or centralize each individual service.

B.  

It is easier to manage a system in which services are mixed

C.  

It requires only one edge router

D.  

It enables EGP and IGP to operate independently

Discussion 0
Question # 16

Refer to the exhibit.

Question # 16

An administrator working for large ISP must connect its two POP sites to provide internet connectivity to its customers. Which configuration must the administrator perform to establish an iBGP session between routers PE1 on POP site 1 and PE2 on POP site 2?

Options:

A.  

PE2#configure terminal

PE2(config)#router bgp 65111

PE2(config-router)#no neighbor 172.18.10.1 shutdown

PE2(config-router)#end

B.  

PE1#configure terminal

PE1(config)#router bgp 65111

PE1(config-router)#no neighbor 172.19.10.10 shutdown

PE1(config-router)#end

C.  

PE1#configure terminal

PE1(config)#router bgp 65111

PE1(config-router)#address-family ipv4 unicast

PE1(config-router-af)#neighbor 172.19.10.10 activate

PE1(config-router-af)#end

D.  

PE2#configure terminal

PE2(config)#router bgp 65111

PE2(config-router)#address-family ipv4 unicast

PE2(config-router-af)#neighbor 172.18.10.1 activate

PE2(config-router-af)#end

Discussion 0
Question # 17

Guidelines -

This is a lab item in which tasks will be performed on virtual devices.

• Refer to the Tasks tab to view the tasks for this lab item.

• Refer to the Topology tab to access the device console(s) and perform the tasks.

• Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.

• All necessary preconfigurations have been applied.

• Do not change the enable password or hostname for any device.

• Save your configurations to NVRAM before moving to the next item.

• Click Next at the bottom of the screen to submit this lab and move to the next question.

• When Next is clicked, the lab closes and cannot be reopened.

Topology:

Question # 17

Tasks -

Configure the BGP routing protocol for R1 and R2 according to the topology to achieve these goals:

1. Configure EBGP neighbor adjacency for the IPv4 and IPv6 address family between R1 and R2 using Loopback0 IPv4 and IPv6 addresses. All BGP updates must come from the Loopback0 interface as the source. Do not use IGP routing protocols to complete this task.

2. Configure MD5 Authentication for the EBGP adjacency between R1 and R2. The password is clear text C1sc0!.

Options:

Discussion 0
Question # 18

Refer to the exhibit.

Question # 18

A network engineer is configuring MPLS LDP synchronization on router R1. Which additional configuration must an engineer apply to R1 so that it will synchronize to OSPF process 1?

Question # 18

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 19

Refer to the exhibit.

Question # 19

An engineer is configuring path selection on router R1 for two ASNs as shown. Which additional task must the engineer perform on Router 1 so that all outbound traffic utilizes the link between R1 and R3 to reach ASN 4567?

Options:

A.  

Configure a low weigh! on the peer to ASN 4567.

B.  

Configure a high weight on the peer to ASN 4567.

C.  

Configure an AS path prepend on the peer to ASN 4567.

D.  

Configure a high med on the peer to ASN 4567.

Discussion 0
Question # 20

What is a constraint of Cisco MPLS TE tunnel configurations?

Options:

A.  

Tunnels cannot span multiple OSPF areas.

B.  

With ISIS as an IGP. only older-style metrics are used.

C.  

Tunnels cannot be configured over IP unnumbered links.

D.  

QoS-aware tunneling is not supported.

Discussion 0
Question # 21

A network architect plans to implement MPLS OAM to provide additional troubleshooting functionality for the NOC team. After analyzing the configuration on the MPLS P/PE nodes, the architect decides to revise the CoPP policies. Which two actions ensure that the new solution is secure? (Choose two.)

Options:

A.  

Allow port 3505 in the outbound direction only.

B.  

Allow the ICMP protocol only.

C.  

Allow the TCP and UDP protocols.

D.  

Allow the UDP protocol only.

E.  

Allow port 3503 in the inbound direction only.

Discussion 0
Question # 22

The engineering team at a large ISP has been alerted a customer network is experiencing high traffic congestion. After a discussion between the ISP and technical personnel at the customer site, the team agrees that traffic to the customer network that exceeds a specific threshold will be dropped. Which task must the engineer perform on the network to implement traffic policing changes?

Options:

A.  

Configure RSVP to reserve bandwidth on all interfaces when a path is congested.

B.  

Enable Cisco Discovery Protocol on the interface sending the packets.

C.  

Enable Cisco Express Forwarding on the interfaces sending and receiving the packets.

D.  

Set IP precedence values to take effect when traffic exceeds a given threshold.

Discussion 0
Question # 23

Refer to the exhibit:

Question # 23

A network operator working for service provider with an employee id 3715 15:021 applied this configuration to a router.

Which additional step should the engineer use to enable LDP?

Options:

A.  

Disable Cisco Express Forwarding globally

B.  

Delete the static router ID

C.  

Enable MPLS LDP on the interface

D.  

Configure the both keyword to enable LDP globally

Discussion 0
Question # 24

What are two factors to consider when implementing NSR High Availability on an MPLS PE router? (Choose two.)

Options:

A.  

It consumes more memory and CPU resources than NSF

B.  

It operates normally without NSR support on the PE peers.

C.  

It requires all PE-CE sessions to support NSR

D.  

It requires routing protocol extensions

E.  

It cannot sync state information across redundant RPs

Discussion 0
Question # 25

Refer to the exhibit:

Question # 25

When implementing an LDP protocol, an engineer experienced an issue between two directly connected routers and noticed that no LDP neighbor exists for 1.1.1.1.

Which factor should be the reason for this situation?

Options:

A.  

LDP needs to be enabled on the R2 physical interface

B.  

R2 does not see any hellos from R1

C.  

LDP needs to be enabled on the R2 loopback interface

D.  

R2 sees the wrong type of hellos from R1

Discussion 0
Question # 26

Refer to the exhibit:

Question # 26

If router RA is configured as shown, which IPv4 multicast address space does it use?

Options:

A.  

224.0. 0.0/8

B.  

225.0. 0.0/8

C.  

232.0. 0.0/8

D.  

239.0. 0.0/8

Discussion 0
Question # 27

After a possible security breach, the network administrator of an ISP must verify the times that several different users logged into the network. Which command must the administrator enter to display the login time of each user that activated a session?

Options:

A.  

show netconf-yang sessions detail

B.  

show netconf-yang datastores

C.  

show platform software yang-management process

D.  

show netconf-yang sessions

Discussion 0
Question # 28

Refer to the exhibit:

Question # 28

What is the URL used for with REST API?

Options:

A.  

It is used to contact a URL filter to determine the efficacy of a web address

B.  

It is used to send a TACACS+ authentication request to a server

C.  

It is used to send a message to the APIC to perform an operation on a managed object or class operator

D.  

It is used to initiate an FTP session to save a running configuration of a device.

Discussion 0
Question # 29

Question # 29

Refer to the exhibit. Four midsize service providers provide access to different customers that use Layer 3 VPN services to enable communication across geographic regions. The service providers are connected as shown in the exhibit, and the PEs have established eBGP relationships. PE4 has an IBGP relationship with PE5. The routes that PE4 learns from PE5 must reach the other PE routers, but they are absent from the routing tables on the other PES. Which action should the engineers take to correct the problem?

Options:

A.  

Configure a peering between all five Pes.

B.  

Disable BGP synchronization on PE4.

C.  

Enable BOP IPv4 unicast on PE4 and PE5

D.  

Advertise the route targets for PE5 to the other PEs

Discussion 0
Question # 30

Question # 30

Guidelines

-

This is a lab item in which tasks will be performed on virtual devices.

• Refer to the Tasks tab to view the tasks for this lab item.

• Refer to the Topology tab to access the device console(s) and perform the tasks.

• Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.

• All necessary preconfigurations have been applied.

• Do not change the enable password or hostname for any device.

• Save your configurations to NVRAM before moving to the next item.

• Click Next at the bottom of the screen to submit this lab and move to the next question.

• When Next is clicked, the lab closes and cannot be reopened.

Topology

Question # 30

Tasks

-

Configure and verify the OSPF neighbor adjacency between R1 and R2 in OSPF area 0 according to the topology to achieve these goals:

1. Establish R1 and R2 OSPF adjacency. All interfaces must be advertised in OSPF by using the OSPF interface command method. Use Loopback0 as the OSPF I

D.  

2. There must be no DR/BDR elections in OSPF Area 0 when establishing the neighbor relationship between R1 and R2. OSPF must not generate the host entries /32 for the adjacent interfaces.

3. Enable OSPF MD5 Authentication between both routers at the interface level with password C1sc0!.

Options:

Discussion 0
Question # 31

Which two features will be used when defining SR-TE explicit path hops if the devices are using IP unnumbered interfaces? (Choose two.)

Options:

A.  

router ID

B.  

labels

C.  

node address

D.  

next hop address

E.  

output interface

Discussion 0
Question # 32

Which configuration enables BGP FlowSpec client function and installation of policies on all local interfaces?

A)

Question # 32

B)

Question # 32

C)

Question # 32

D)

Question # 32

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 33

A new PE router is configured to run OSPF as an IGP with LDP on all interfaces. The engineer is trying to prevent black holes after convergence when the PERSON device loses an LDP session with other PE routers. Which action must the engineer take to implement LDP session protection on a new PE router?

Options:

A.  

Configure the mpls ldp session protection and mpls label protocol ldp commands on the interfaces on the new PE router that connect to the CENTER routers.

B.  

Configure the mpls ldp discovery targeted-hello accept and mpls ldp session protection commands on the interfaces on the new PE router that connect to the CE routers.

C.  

Configure the new PE router with the mpls ldp session protection command and on neighboring routers that connect to this new PE router.

D.  

Configure the new PE router with the mpls ldp session protection command on interfaces with directly connected neighbors.

Discussion 0
Question # 34

What is a characteristic of the YANG model?

Options:

A.  

Associate types are optional for each leaf.

B.  

It uses containers to categorize related nodes.

C.  

It is a distributed model of nodes.

D.  

Spines are used to represent individual attributes of nodes.

Discussion 0
Question # 35

Question # 35

Refer to the exhibit. A host connected to R3 must connect with a server on R1 that provides critical, time-sensitive data. Traffic between the host and server must always be given bandwidth to traverse the links when they are congested, with other traffic being dropped. How must the network engineer implement a QoS strategy with classification to ensure that the traffic is given the appropriate bandwidth?

Options:

A.  

Implement FIFO to guarantee that the server traffic is sent first while other traffic is queued.

B.  

Implement policing to rate-limit noncritical traffic that exceeds designated thresholds.

C.  

Implement traffic shaping to delay noncritical traffic when the link is congested.

D.  

Implement strict priority to guarantee bandwidth for the server traffic.

Discussion 0
Question # 36

Which technology enables the addition of new wavelengths in a fiber-optic network?

Options:

A.  

IPoDWDM

B.  

CWDM

C.  

DWDM

D.  

ROADM

Discussion 0
Question # 37

A network operator working for a private outsourcing company with an employee id: 4261:72:778 needs to limit the malicious traffic on their network. Which configuration must the engineer use to implement URPF loose mode on the GigabitEthernet0/1 interface?

Options:

A.  

router(config)# interface gigabitethernet0/1

router(config-if)# ip address 192.168.200.1 255.255.255.0

router(config-if)# ip verify unicast source reachable-via any

router(config-if)# ipv6 address 2001:DB8:1::1/96

router(config-if)# ipv6 verify unicast source reachable-via any

B.  

router(config)# interface gigabitethernet0/1

router(config-if)# ip address 192.168.200.1 255.255.255.0

router(config-if)# ip verify unicast source reachable-via rx

router(config-if)# ipv6 address 2001:DB8:1::1/96

router(config-if)# ipv6 verify unicast source reachable-via rx

C.  

router(config)# interface gigabitethernet0/1

router(config if)# ip address 192.168.200.1 255.255.255.0

router(config-if)# ip verify unicast source reachable-via rx

router(config-if)# ipv6 address 2001:DB8:1::1/96

router(config-if)# ipv6 verify unicast source reachable-via any

D.  

router(config)# interface gigabitethernet0/1

router(config-if)# ip address 192.168.200.1 255.255.255.0

router(config-if)# ip verify unicast source reachable-via any

router(config-if)# ipv6 address 2001:DB8:1::1/96

router(config-if)# ipv6 verify unicast source reachable-via rx

Discussion 0
Question # 38

Refer to the exhibit.

Question # 38

Which the link aggregation configuration router is running on Cisco IOS XR software, which LACP interface configuration is needed to add the interface to the bundle?

Question # 38

Question # 38

Question # 38

Question # 38

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 39

Refer to the exhibit.

Question # 39

An engineer has started to configure a router for secure remote access as shown. All users who require network access need to be authenticated by the SSH Protocol.Which two actions must the engineer implement to complete the SSH configuration? (Choose two.)

Options:

A.  

Configure an IP domain name.

B.  

Configure service password encryption.

C.  

Configure crypto keys

D.  

Configure ACL 100 to permit access to port 22.

E.  

Configure a password under the vty lines.

Discussion 0
Question # 40

Drag and drop the BGP Best Path Algorithm rules from the left into the corresponding order of importance on the right.

Question # 40

Options:

Discussion 0
Question # 41

Refer to the exhibit:

Question # 41

Which information is provided for traceback analysis when this configuration is applied?

Options:

A.  

BGP version

B.  

packet size distribution

C.  

source interface

D.  

IP sub flow cache

Discussion 0
Question # 42

Which additional feature does MPLS DiffServ tunneling support?

Options:

A.  

matching EXP and DSCP values

B.  

interaction between MPLS and IGP

C.  

using GRE tunnels to hide markings

D.  

PHB layer management

Discussion 0
Question # 43

Refer to the exhibit.

Question # 43

A network engineer must implement SNMPv3 on a Cisco IOS XR router running BGP. The engineer configures SNMPv3 to use SHA for authentication and AES for privacy on the routers, which are in a different data center in the same exchange as other routers. The engineer must also verify the associated MIB view family name, storage type, and status. Which set of actions meets these requirements?

Options:

A.  

Add configuration snmp-server user UserJustMe GrpMonitoring v3 auth sha AuthPass1 priv 3des 128 PrivPass2 and use show snmp interface to verify the configuration.

B.  

Add configuration snmp-server user AuthUser group2 remote 10.1.1.1 v3 auth sha and use show snmp mib to verify the configuration.

C.  

Add configuration snmp-server user AuthUser group2 remote 10.1.1.1 v3 auth sha and use show snmp engineid to verify the configuration.

D.  

Add configuration snmp-server user UserJustMe GrpMonitoring v3 auth sha AuthPass1 priv aes 128 PrivPass2 and use show snmp view to verify the configuration.

Discussion 0
Question # 44

Refer to the exhibit:

Question # 44

A network engineer is implementing a BGP routing policy.

Which effect of this configuration is true?

Options:

A.  

All traffic that matches acl10 is allowed without any change to its local-preference

B.  

All traffic that matches acl10 is dropped without any change to its local-preference

C.  

If traffic matches acl10, it is allowed and its local-preference is set to 300

D.  

All traffic is assigned a local-preference of 30O regardless of its destination

Discussion 0
Question # 45

Drag and drop the characteristics from the left onto the automation tool on the right.

Question # 45

Options:

Discussion 0
Question # 46

Simulation 5

Question # 46

Question # 46

Options:

Discussion 0
Question # 47

An engineer is implementing MPLS to monitor within the MPLS domain. Which must the engineer perform to prevent packets from being forwarded beyond the service provider domain when the LSP is down?

Question # 47

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 48

Question # 48

Question # 48

Refer to the exhibit. The USER mat is connecting an application on an Internet connection in AS 100 is facing these issues:

  • The USER lost the connection to the application during a failure Between IG and R2.
  • Router R2 configuration a lost due to a power outage.
  • The application the USER is connecting to a hosted behind CE2.

What action resolves the issues on R3 and R4 routers?

Options:

A.  

Set R4 as a route reflector for R3 and CE2

B.  

Apply high Local Preference on R3 toward R1

C.  

Set R3 as a route reflector for R4 and CE1

D.  

Apply low Local Preference on R4 toward R2.

Discussion 0
Question # 49

Refer to the exhibit.

Question # 49

What does the script configure?

Options:

A.  

a VLAN namespace

B.  

selectors for the in-band management

C.  

a physical domain

D.  

a static VLAN

Discussion 0
Question # 50

What occurs when a high bandwidth multicast stream is sent over an MVPN using Cisco hardware?

Options:

A.  

The traffic uses the default MDT transmit the data Only if it is a (S, G) multicast route entry.

B.  

A data MDT is created if is a Multicast route entries

C.  

A data and default MDT are created to flood the multicast stream of all PIM-SM neighbors.

D.  

A data MDT is created to allow for the best transmit through the core for multicast route entries.

Discussion 0
Question # 51

A network administrator must monitor network usage to provide optimal performance to the network end users when the network is under heavy load. The administrator asked the engineer to install a new server to receive SNMP traps at destination 192.168.1.2. Which configuration must the engineer apply so that all traps are sent to the new server?

Options:

A.  

snmp-server enable traps entity

snmp-server host 192.168.1.2 public

B.  

snmp-server enable traps bgp

snmp-server host 192.168.1.2 public

C.  

snmp-server enable traps isdn

snmp-server host 192.168.1.2 public

D.  

snmp-server enable traps

snmp-server host 192.168.1.2 public

Discussion 0
Question # 52

Simulation 7

Question # 52

Question # 52

Options:

Discussion 0
Question # 53

Question # 53

Refer to the exhibit. A network engineer is implementing multicast Source-A to send a multicast stream for Receiver-A, and multicast Source-B to send a multicast stream for Receiver-

B.  

Router RC forwards the IGMP host a report and leaves messages to IP address 192.168.10.1. How must the multicast features be implemented to prevent RB from receiving multicast flooding from Source-A?

Options:

A.  

Change the helper-address value to 192.168.10.2 on R

C.  

B.  

Enable ip pim neighbor-filter on RC interface Ge0/0.

C.  

Configure PIM-SSM on RB and RC interface Ge 0/0.

D.  

Enable ip pim passive on RB interface Ge0/0.

Discussion 0
Question # 54

Refer to the exhibit:

Question # 54

Which statement describes this configuration?

Options:

A.  

Router 1 has its running configuration locked so changes can be made only when the administrator issues a kill session

B.  

Router 1 can be remotely managed by the CLI using Telnet

C.  

Router 1 has a new data store to collect SNMP information, but configuration must still be done at the CLI only

D.  

Router 1 has a temporary data store where a copy of the running configuration can be manipulated and verified before committing the configuration

Discussion 0
Question # 55

Refer to Exhibit.

Question # 55

A network engineer is trying to retrieve SNMP MIBs with RESTCONF on the Cisco switch but fails. End-to-end routing is in place. Which configuration must the engineer implement on the switch to complete?

Options:

A.  

netconf-yang cisco-ia snamp-community -string Public

B.  

snmp-server community cisco RW

C.  

snmp-server community public RO

D.  

netconf-yang cisco-Ia snmp-community-string Private

Discussion 0
Question # 56

Which two tasks must an engineer perform when implementing LDP NSF on the network? (Choose two.)

Options:

A.  

Disable Cisco Express Forwarding.

B.  

Enable NSF for EIGRP.

C.  

Enable NSF for the link-state routing protocol that is in use on the network.

D.  

Implement direct connections for LDP peers.

E.  

Enable NSF for BGP.

Discussion 0
Question # 57

Question # 57

Refer to the exhibit. A large service provider is migrating device management from Layer 2 VLAN-based to Layer 3 IP-based solution. An engineer must configure the ISIS solution with these requirements:

Network management server IP 172.16.10.1 must be advertised from the core MPLS network to the regional domain.

The external network 202.10.0.0/24 must not establish ISIS peering with the R5 router.

The regional network must prevent sending unnecessary hello packets and flooding the routing tables of the R5 router.

Which two ISIS parameters must be implemented to meet these requirements? (Choose two.)

Options:

A.  

LSP lifetime maximum

B.  

advertise-passive-only

C.  

overload bit passive

D.  

attached bit on ISIS instance

E.  

passive-interface Loopback0

Discussion 0
Question # 58

What Is one of the differences between Ansible and Chef?

Options:

A.  

Ansible uses YAML and Chef uses Ruby.

B.  

Chef requires the use of Windows in the environment and Ansible requires Linux.

C.  

Chef is highly scalable and Ansible is highly secure.

D.  

Ansible uses Ruby and Chef uses Python.

Discussion 0
Question # 59

Refer to the exhibit:

Question # 59

Which purpose of implementing NSF with this configuration is true?

Options:

A.  

The router uses NSF to load balance traffic between two links, with the primary link alternating every 90 seconds

B.  

The router uses NSF to reduce neighbor-relationship downtime during RP switchover

C.  

The router uses NSF to load balance traffic on a routed EtherChannel

D.  

The router uses NSF to handle RP switchover while allowing neighbor relationships to remain up

Discussion 0
Question # 60

Question # 60

Refer to the exhibit. The operations team for a service provider network is implementing a route map policy. OSPF area 0 should originate the default route with a type 2 metric of 2 when the application server on the connected interface (192.168.1.1) is up. Routers RL and RM have set up OSPF peering with other adjacent routers. Which action meets this requirement?

Options:

A.  

Apply default-information originate route-map ospf-default-route on router RL.

B.  

Configure distribute-list route-map ospf-default-route out on router RM.

C.  

Configure distribute-list route-map ospf-default-route out on router RL.

D.  

Apply default-information originate route-map ospf-default-route on router RM.

Discussion 0
Question # 61

Question # 61

Refer to the exhibit. An engineer is configuring IS-IS on ISP network. Which IS-IS configuration must an engineer implement on router AGG1 so that it establishes connectivity to router AGG6 via the BB3 core router?

Options:

A.  

router isis 100

metric-style narrow

interface GigabitEthernet 3

isis metric 10 level-2

B.  

router isis 100

metric-style wide

interface GigabitEthernet 3

isis metric 1500 level-2

C.  

router isis 100

metric-style narrow

interface GigabitEthernet 3

isis metric 10 level-1

D.  

router isis 100

metric-style wide

interface GigabitEthernet 3

isis metric 1500 level-1

Discussion 0
Question # 62

An engineer must apply an 802.1ad-compliant configuration to a new switchport with these requirements:

The switchport must tag all traffic when it enters the port.

The switchport is expected to provide the same level of service to traffic from any customer VLAN.

Which configuration must the engineer use?

Options:

A.  

interface GigabitEthernet1/0/1

switchport mode trunk

switchport trunk encapsulation dot1q

encapsulation ISL

bridge-domain 12

B.  

interface GigabitEthernet1/0/1

ethernet dot1ad uni c-port

service instance 12

encapsulation dot1q

rewrite ingress tag push dot1ad 21 symmetric

bridge-domain 12

C.  

interface GigabitEthernet1/0/1

ethernet dot1ad uni s-port

service instance 12

encapsulation default

rewrite ingress tag push dot1ad 21 symmetric

bridge-domain 12

D.  

interface GigabitEthernet1/0/1

ethernet dot1ad nni

service instance 12

encapsulation dot1ad

bridge-domain 12

Discussion 0
Question # 63

Which OoS model allows hosts to report their QoS needs to the network?

Options:

A.  

DiffServ

B.  

CB-WFQ

C.  

IntServ

D.  

MQC

Discussion 0
Question # 64

Refer to the exhibit.

Question # 64

While troubleshooting the network, a network operator with an employee id: 3812:12:993 is trying to ping XR1. Which result should the operator expect when trying to ping to an XR1 local address?

Options:

A.  

ICMP traffic works at a policed rate of 19 bytes per second every 100 ms

B.  

All ICMP traffic responds successfully.

C.  

All ICMP traffic is dropped.

D.  

ICMP traffic works at a policed rate of 19 packets every 100 ms.

Discussion 0
Question # 65

You are testing the capabilities of MPLS OAM ping.

Which statement is true?

Options:

A.  

MPLS OAM ping works solely with Cisco MPLS TE

B.  

MPLS OAM ping works solely with P2P LSPs

C.  

An LSP breakage results in the ingress MPLS router never receiving any reply

D.  

An LSP is not required for the reply to reach the ingress MPLS router

Discussion 0
Question # 66

A mod-size service provider uses L2VPN as its standard for connectivity between offices. A small company wants the service provider to connect the company’s two sites across the service provider core. To meet service requirements, the service provider must extend the layer 2 domain between the company’s two locations. Which configuration must the engineer apply to implement an attachment circuit between the two sites using a VLAN tag of 12?

Question # 66

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 67

What do Ansible and Salt Stack have in common?

Options:

A.  

They both use DSL configuration language

B.  

They both use YAML configuration language

C.  

They both have agents running on the client machine

D.  

They both can be designed with more than one master server

Discussion 0
Question # 68

Question # 68

Refer to the exhibit. A global company plans to implement BGP at its newest location to provide connectivity to other offices. The global infrastructure of the company is a multivendor environment. An engineer must review the BGP core configurations at headquarters to determine if they can be repurposed at the new location. The engineer copied this JSON script for review. What is the effect of the script?

Options:

A.  

It configures BGP with neighbor 192.168.1.2 residing in AS 65514.

B.  

It sets the BGP router-ID to 192.168.1.2 and sets the AS of the router to 65514.

C.  

It configures BGP on the device and inserts 192.168.1.0/24 into the BGP table using the origin AS 65514.

D.  

It configures a VRF named cisconode1 and a BGP instance using the VPNv4 address family.

Discussion 0
Question # 69

Refer to the exhibit.

Question # 69

Routers R2 and R3 are Level 1/Level 2 IS-IS routers that redistribute 198 18.x.x/24 prefixes to routers R5 and R6 In the Level 1 area R2 Is to be the preferred router for all redistributed prefixes in the Level 1 area. Which configuration sets this preference?

Question # 69

Question # 69

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 70

Question # 70

Refer to the exhibit. A network engineer is configuring router RB to secure BGP advertisements against route hijacking activity. RB must validate all prefixes that it receives from origin AS 200 before installing them in the BGP route table. Which configuration meets the requirement?

Options:

A.  

RB(config)# router bgp 100

RB(config-router)# address-family ipv4 unicast

RB(config-router-af)# bgp bestpath origin-as use validity

B.  

RB(config-bgp)# router bgp 100

RB(config-bgp)# bgp origin-as validation signal ibgp

RB(config-bgp)# bgp bestpath origin-as allow invalid

C.  

RB(config-bgp)# router bgp 100

RB(config-bgp)# bgp origin-as validation time off

D.  

RB(config)# router bgp 100

RB(config-router)# address-family ipv4 unicast

PB(config-router-af)# bgp origin-as validation enable

Discussion 0
Question # 71

Which feature describes the adjacency SID?

Options:

A.  

It applies only to point-to-point links.

B.  

It applies only to multipoint links

C.  

It is locally unique

D.  

It is globally unique.

Discussion 0
Question # 72

Which benefit is provided by FRR?

Options:

A.  

It provides fast forwarding path failure detection times for all media.

B.  

It provides rapid failure detection between forwarding engines.

C.  

It provides performance data for the service provider network.

D.  

It protects Cisco MPLS TE LSPs from link and node failures.

Discussion 0
Question # 73

A network administrator is planning a new network with a segment-routing architecture using a distributed control plane. How is routing information distributed on such a network?

Options:

A.  

Each segment is signalled by an SR controller, but each segment makes Its own steering decisions based on SR policy.

B.  

Each segment is signalled by MPLS, and each segment makes steering decisions based on the routing policy pushed by BGP.

C.  

Each segment is signalled by an SR controller that makes the steering decisions for each node.

D.  

Each segment is signalled by a compatible routing protocol and each segment makes its own steering decisions based on SR policy.

Discussion 0
Question # 74

Refer to the exhibit.

Question # 74

Which configuration must be implemented on router R8 so that it will establish OSPF adjacency with R5?

A)

Question # 74

B)

Question # 74

C)

Question # 74

D)

Question # 74

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 75

Refer to the exhibit.

Question # 75

A network engineer must meet these requirements to provide a connects, solution:

  • The customer connected to Area 2 needs to access the application in Area 1 on the 10.10.10.0/24 subnet
  • The Customer must not have access to the 20.10 30.0/24 subnet.
  • The service provider must make sure that the Area 2 routing database limits the number of IP addresses in the routing table

Which two configurations must be implemented to meet the requirements? (Choose two)

Options:

A.  

Set a tag value of 200 to match the summary address 10.0.0/16 on R2.

B.  

Set a tag value of 200 to match the summary address 10.0.0.0/16 on R3.

C.  

Apply the route map for tag 200 and leak Level 2 routes into Level 1 Area 2 on R3

D.  

Apply the route map for tag 200 and teak Level 2 routes into Level 1 Area 2 on R4.

E.  

Set a tag value of 200 to match the summary address 10.0.0./16 on R1.

Discussion 0
Question # 76

An engineer is moving all of an organization’s Cisco IOS XE BGP routers to the address-family identifier format. Which command should be used to perform this upgrade quickly with the minimum service disruption?

Options:

A.  

vrf upgrade-cli

B.  

bgp upgrade-cli

C.  

address-family ipv4

D.  

ip bgp-community new-format

Discussion 0
Question # 77

Refer to the exhibit.

Question # 77

CE1 and CE2 require connectivity to the internet through the ISP connected to PE3 What should an engineer configure to complete this task?

Options:

A.  

PE2 must be configured to serve as a route reflector for PE3 routes learned from the internet. PE2 then shares the routes with CE1 and CE2.

B.  

CE1 and CE2 must be configured with a route distinguisher in the PE1 VRF that dynamically imports the route from the internet.

C.  

CE1 and CE2 must be configured to use a static default route with a next-hop of PE3 to reach internet routes.

D.  

PE1 must be configured with an import route target in the CE1 VRF that matches the export route target for the internet VRF on PE3.

Discussion 0
Question # 78

What are two features of stateful NAT64?

Options:

A.  

It provides 1: N translations, so it supports an unlimited number of endpoints

B.  

It provides 1:1 translation so it supports a limited number of end points

C.  

It requires the ipv6 hosts to use either DHCPv6 based address assignments or manual address assignments

D.  

It uses address overloading

E.  

It requires IPv4 translatable IPv6 address assignments

Discussion 0
Question # 79

Drag and drop the multicast concepts from the left onto the correct descriptions on the right.

Question # 79

Options:

Discussion 0
Question # 80

According to RFC5305 on IS-IS extensions for traffic engineering, what is the 4-octet sub-TLV type 10 of extended IS-IS reachability TLV type 22?

Options:

A.  

TE default metric

B.  

maximum reservable link bandwidth

C.  

administrative group (color)

D.  

IPv4 neighbor address

Discussion 0
Question # 81

Refer to the exhibit.

Question # 81

An engineer applied a gRPC dial-in configuration on customer's router to provide connection multiplexing and two-way streaming. What does this configuration accomplish in a gRPC?

Options:

A.  

It is the encoding requested by the gRPC server.

B.  

IT is the encoding that is used for dial-in and dial-out.

C.  

It is used for encoding with the default protocol buffers

D.  

It is the encoding requested by the gRPC client.

Discussion 0
Question # 82

Question # 82

Refer to the exhibit. An engineer is scripting ACLs to handle traffic on the given network. The engineer must block users on the network between R1 and R2 from leaving the network through R5. but these users must still be able to access all resources within the administrative domain. How must the engineer implement the ACL configuration?

Options:

A.  

Configure an ACL that permits traffic to any internal address, and apply it to the R5 interfaces to R3 and R4 in the egress direction

B.  

Configure a permit any ACL on the R1 interface to R2 in the egress direction, and a deny any ACL on the interface in the ingress direction

C.  

Configure an ACL that permits traffic to all internal networks and denies traffic to any external address, and apply it to the R2 interface to R1 in the ingress direction.

D.  

Configure an ACL that denies traffic to any internal address and denies traffic to any external address, and apply it to the R5 interfaces to R3 and R4 in the ingress direction

Discussion 0
Question # 83

Refer to the exhibit.

Question # 83

A network engineer must configure an LDP neighborship between two newly installed routers that are located in two different offices. Router 1 is the core router in the network and it has already established OSPF adjacency with router 2. On router 1 and router 2. interface fa0/0 is configured for BF

D.  

Which additional configuration must the engineer apply to the two devices to meet the requirement?

Options:

A.  

Router1(config)#int fa0/0 -

Router1(config-if)#mpls ldp autoconfig

Router2(config)#router ospf 1 -

Router2(config-router)#mpls ip

B.  

Router1(config)#int fa0/0 -

Router1(config-if)#mpls ip -

Router1(config-if)#mpls ldp discovery transport-address interface

Router2(config)#int fa0/0 -

Router2(config-if)#mpls ip -

Router2(config-if)#mpls ldp discovery transport-address interface

C.  

Route1(config)#int fa0/0 -

Router1(config-if)#mpls ldp autoconfig

Router1(config-if)#mpls ldp discovery interface

Router2(config)#router ospf 1 -

Router2(config-router)#mpls ldp autoconfig

Router2(config-if)#mpls ldp discovery interface

D.  

Router1(config)#int fa0/0 -

Router1(config-if)#mpls ip -

Router2(config)#router ospf 1 -

Router2(config-router)#mpls ldp autoconfig

Discussion 0
Question # 84

Question # 84l

Refer to the exhibit. A network engineer working for a telecommunication company with an employee ID: 4602:62:646 is configuring security controls for the IPv6 multicast group, which is used for video TV. The solution from the engineer should reduce network usage and minimize the leave latency for the user that is connected to VLAN 76. Which two configurations meet this goal? (Choose two.)

A)

Question # 84

B)

Question # 84

C)

Question # 84

D)

Question # 84

E)

Question # 84

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

E.  

Option E

Discussion 0
Question # 85

Refer to the exhibit.

Question # 85

An engineer configured BGP summarization on a customer's network. Which route is advertised to BGP peers?

Options:

A.  

192.0.0.0/16

B.  

192168.0.0/16

C.  

192.168.1.0/24

D.  

192168.0.5/30

Discussion 0
Question # 86

Question # 86

Refer to the exhibit. An engineer must Implement a traceroute operation to verity the R1 point-to-multipoint LSP connections. The traceroute operation must return all labels and hop-by-hop IP addresses for destinations 10.20.0.1. 10.30.0.1, and 10.40.0.1. and the maximum number of hops is 4. Which command must be executed to meet the requirements?

Options:

A.  

traceroute mpls traffic-eng tunnel-mte 10 ttl 4

B.  

traceroute mpls traffic-eng tunnel-mte 10 responder-id 10.40.0.1

C.  

traceroute mpls ipv4 10.30.0.1/32 fee-type generic

D.  

traceroute mpls ipv4 10.20.0.1/32 ttl 4

Discussion 0
Question # 87

ASN 65001 is peering with ASN 65002 to exchange IPv6 BGP routes. All routes that originate in ASN 65001 have a standard community value of 65001:100, and ASN 65002 is allowed to advertise only 2001 :db8:aaaa::/48. An engineer needs to update the ASN 65001 route-filtering configuration to meet these conditions:

* Looped routes into ASN 65001 and routes that have traversed 10 or more ASNs must be denied.

* Routes accepted into ASN 65001 must be assigned a community value of 65001:200.

Which configuration must the engineer apply to the ASN 65001 border router?

Question # 87

Question # 87

Question # 87

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

E.  

Option E

Discussion 0
Question # 88

Which action does the ingress VTEP perform on traffic between EVPN VXLAN overlays?

Options:

A.  

routing and tunneling when doing symmetric IRB

B.  

routing when doing asymmetric IRB

C.  

routing and bridging when doing asymmetric IRB

D.  

bridging when doing symmetric IRB

Discussion 0
Question # 89

Refer to the exhibit:

Question # 89

A network administrator wants to enhance the security for SNMP for this configuration.

Which action can the network administrator implement?

Options:

A.  

Re-configure to use SNMPv2 with MD5 authentication

B.  

Add a community string to the existing entry

C.  

Re-configure to use SNMPv3.

D.  

Maintain the configuration but switch to an encrypted password for device access through SSH

Discussion 0
Question # 90

While an engineer deploys a new Cisco device to redistribute routes from OSPF to BGP, they notice that not all OSPF routes are getting advertised into BGP. Which action must the engineer perform so that the device allows O, OIA, OE1, and OE2 OSPF routes into other protocols?

Options:

A.  

Configure the device to pass only O and E2 routes through it.

B.  

Configure the synchronization keyword in the global BGP configuration.

C.  

Configure the keyword nssa in the redistribution entry.

D.  

Configure the keywords internal and external in the redistribution entry.

Discussion 0
Question # 91

An engineer is trying to implement BGP in a multihomed architecture. What must the engineer configure to influence inbound path selection?

Options:

A.  

A route map with WEIGHT attribute to control the inbound traffic.

B.  

An offset list to set the metric for routes received from neighboring autonomous systems.

C.  

An access list to identify traffic and enable it on both of the provider-facing interfaces.

D.  

A route map with AS_PATH attribute to control the inbound traffic.

Discussion 0
Question # 92

What is a role of NSO?

Options:

A.  

It automates the deployment of access points with its built-in wireless LAN controller.

B.  

It manages WAN infrastructure using a virtual switch.

C.  

It provides full lifecycle management of a device.

D.  

It resides on a hypervisor that runs the Windows OS.

Discussion 0
Question # 93

Refer to the exhibit.

Question # 93

An engineer has started to configure a router for OSPF, as shown Which configuration must an engineer apply on the network so that area 15 traffic from R5 to R1 will prefer the route through R4?

Options:

A.  

Place the link between R3 and R5 in a stub area to force traffic to use the route through R4.

B.  

Increase the cost on the link between R2 and R4, to influence the path over R3 and R4.

C.  

Implement a multiarea adjacency on the link between R2 and R4, with the cost manipulated to make the path through R4 preferred.

D.  

Implement a sham link on the between R3 and R2 to extend area 0 area 15.

Discussion 0
Question # 94

Refer to the exhibit: Question # 94

BGPsec is implemented on R1. R2. R3. and R4 BGP peering is established between neighboring autonomous systems Which statement about implementation is true?

Options:

A.  

BGP updates from the eBGP peers are appended with an additional AS path value that is statically set by the domain administrator

B.  

BGP updates from the iBGP peers are appended with a community of local-as

C.  

BGP updates from the all BGP peers are appended with a community of no export

D.  

BGP updates from the eBGP peers are appended with a BGPsec attribute sequence that includes a public key hash and digital signature

Discussion 0
Question # 95

Question # 95

Refer to the exhibit. R1 has two upstream Tier 1 service providers. BGP is in use as the exterior routing protocol, and ISP_A and ISP_B are sending the full BGP table. A network engineer must assign local-preference 70 to all routes with multiple exit discriminator 30. Which configuration must the network engineer apply?

Question # 95

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 96

Simulation 8

Question # 96Question # 96

Question # 96

Options:

Discussion 0
Question # 97

Refer to the exhibit.

Question # 97

What reestablishes the OSPF neighbor relationship between Router 1 and Router 2?

Options:

A.  

authentication is added to the configuration

B.  

correct wildcard mask is used on Router 2

C.  

OSPF process IDs match

D.  

hello intervals match

Discussion 0
Question # 98

Refer to the exhibit.

Question # 98

An engineer needs to implement this QoS policy on customer's network due to ongoing slow network issues. What will be the effect on the network when the engineer implements this configuration?

Options:

A.  

Traffic that is identified in the ciscotest class map will be remarked from IP precedence 1 to DSCP AF11 when it enters the pos0/2/0/0 interface.

B.  

Traffic that is identified in the ciscopolicy class map will be marked with IP precedence 1 when it enters the pos0/2/0/0 interface.

C.  

Traffic that is identified in the ciscopolicy class map will be remarked from IP precedence 1 to DSCP AF11 when it exits the pos0/2/0/0 interface.

D.  

Traffic that is identified in the ciscotest class map will be marked with IP precedence 1 when it exits the poso/2/0/0 interface.

Discussion 0
Question # 99

Question # 99

Refer for the exhibit. To optimize network operations, the senior architect created this Python 3.9 script for network automation tasks and to leverage Ansible 4.0 playbooks. Devices In the network support only RFC 2617-based authentication What does the script do?

Options:

A.  

The script logs in via SSH and configures interface GigabitEthernetO/1 with IP address 10.1.131.112/30.

B.  

The script leverages REST API calls and configures Interface GlgabilEthemet0/1 with IP address 10.1.131.112/30.

C.  

The script performs a configuration sanity check on the device with IP address 172.168.211.65 via HTTP and returns an alert If the payload field falls to match.

D.  

The script parses the JSON response from the router at IP address 172 168.211.65 and checks If the interface GigaWtEthernet0/1 with IP address 10.1.131.112 exists on the router.

Discussion 0
Question # 100

Refer to the exhibit:

Question # 100

Which statement about this configuration is true"?

Options:

A.  

It requires an explicit Cisco MPLS TE path to be configured for the tunnel to run

B.  

It requires OSPF to also be running to have optimized Cisco MPLS TE tunnels

C.  

It requires a dynamic Cisco MPLS TE path to be configured for the tunnel to run

D.  

It is the configuration for the head-end router of a Cisco MPLS TE tunnel with segment routing

Discussion 0
Question # 101

Refer to the exhibit A network engineer is in the process of implementing IS-IS Area 1 and Area 2 on this network to segregate traffic between different segments of the network The hosts in the two new areas must maintain the ability to communicate with one another In both directions. Which additional change must be applied?

Question # 101

Options:

A.  

Reconfigure either R3 or R4 as a Level 1/Level 2 router.

B.  

Reconfigure routers R1, R2 R5. and R6 as Level 1/Level 2 routers.

C.  

Reconfigure routers R2 and R5 as Level 1/Level 2 routers.

D.  

Reconfigure routers R4, R5 and R6 as Level 1 routers

Discussion 0
Question # 102

Refer to the exhibit.

Question # 102

A network engineer is implementing an LDP-based MPLS solution to enable packet flow between the two bank sites The engineer was given two requirements

·LDP peering must stay up when there is a link failure between R3 and R6

·LDP peering must not flap when there is a link failure between R5 and R6

Which action meets these requirements?

Options:

A.  

Enable Link LDP on R4 and R6

B.  

Reset the LDP session between R4 and R6

C.  

Configure LDP Session Protection on R4

D.  

Implement an LDP targeted session with R4 on R6

Discussion 0
Question # 103

Refer to the exhibit.

Question # 103

A network operator needs to shut down interface Gi0/0/0/2 for maintenance. What occurs to the interface states of Gi0/0/0/0 and Gi0/0/0/1?

Options:

A.  

Gi0/0/0/1 and Gi0/0/0/0 become active

B.  

Gi0/0/0/1 and Gi0//0/0 remains standby

C.  

Gi0/0/0/0 becomes active. Gi0/00/1 remains standby

D.  

Gi0/0/0/1 becomes active Gi0/0/0/0 remains standby

Discussion 0
Question # 104

Refer to the exhibit.

Question # 104

AN engineer is configuring segment routing on an ISP to simplify traffic engineering and management across network domains. What should the engineer do to complete the implementation of segment routing?

Options:

A.  

OSPF must be configured with wide area metrics to support routing.

B.  

The segment will run without any further configuration.

C.  

Area authentication must be enable before segment routing will run.

D.  

Area Authentication must be enable before segment routing will run.

Discussion 0
Question # 105

An engineer working for a private telecommunication company with an employe id:3948:613 needs to limit the malicious traffic on their network. Which configuration must the engineer use to implement URPF loose mode on the GigabitEthernet0/1 interface?

A)

Question # 105

B)

Question # 105

C)

Question # 105

D)

Question # 105

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 106

Refer to the exhibit.

Question # 106

A network operator working for a telecommunication company with an employee ID: 4350:47:853 must implement an IGP solution based on these requirements:

• Subnet 10.50.10.0 traffic must exit through the R1 router to connect with the Syslog server.

• Subnet 10.50.20.0 traffic must exit through the R2 router to connect with the NTP server.

• In case of link failure between R2 and R4, traffic must be routed via R1 and R3.

Which two configurations must be implemented on R5 to meet these requirements? (Choose two.)

Options:

A.  

Apply a route policy to redistribute 10.50.0.0 prefixes in OSPF to ISIS and ISIS to OSP

F.  

B.  

Apply a route policy to redistribute 10.50.20.0 from ISIS-L2 to OSPF Area 0 at a higher cost.

C.  

Enable a route policy to advertise 10.50.20.0 in ISIS-L2 at a higher cost.

D.  

Apply a route policy to redistribute 10.50.10.0 from OSPF Area 0 to ISIS-L2 at a lower cost.

E.  

Enable a route policy to advertise 10.50.10.0 In OSPF Area 0 at a low cost.

Discussion 0
Question # 107

Refer to the exhibit:

Question # 107

What does the REST API command do?

Options:

A.  

It retrieves the information requested by Descriptions xml

B.  

It removes the information identified by Descriptions xml

C.  

It executes the commands specified in Descriptions xml

D.  

It displays the information identified by Descriptions xml

Discussion 0
Question # 108

Drag and drop the NAT64 descriptions from the left onto the correct NAT64 types on the right.

Question # 108

Options:

Discussion 0
Question # 109

A network engineer must configure a router for Flexible NetFlow IPFIX export. The IP address of the destination server is 172.17.12.1. The source address must be set to the Loopback0 IPv4 address and exported packets must be set to DSCP CS3. The TTL must be 64 and the transport protocol must be set to UDP with destination port 4739. Which configuration must the engineer apply to the router?

Options:

A.  

configure terminal

flow exporter EXPORTER-1

destination 172.17.12.1

source Loopback0

dscp 3

ttl 64

export-protocol netflow-v9

transport udp 4739

end

B.  

configure terminal

flow exporter EXPORTER-1

destination 172.17.12.1

source Loopback0

dscp 24

ttl 64

export-protocol ipfix

end

C.  

configure terminal

flow exporter EXPORTER-1

destination 172.17.12.1

source Loopback0

dscp 24

ttl 64

export-protocol netflow-v9

transport udp 4739

end

D.  

configure terminal

flow exporter EXPORTER-1

destination 172.17.12.1

source Loopback0

dscp 3

ttl 64

export-protocol ipfix

end

Discussion 0
Question # 110

Question # 110

Refer to the exhibit. A network engineer is implementing iBGP and eBGP between AS 600 and AS 500 with these requirements:

  • R2 must establish eBGP peering on 192.168.3.0/30 with R5 for sending unicast and multicast traffic
  • R2 must wait for 30 seconds before sending BGP updates to R5 for multicast traffic.

Which action must be taken on R2 to meet the requirements?

Options:

A.  

Configure advertisement-interval 30 In address-family ipv4 unicast

B.  

Configure advertisement-Interval 30 in address-family Ipv4 multicast

C.  

Apply timers bgp 30 in address-family ipv4 unicast

D.  

Apply timers bgp 30 in address-family ipv4 multicast.

Discussion 0
Question # 111

Which two IS-IS parameters must match before two Level 2 peers can form an adjacency? (Choose two)

Options:

A.  

authentication settings

B.  

area ID

C.  

system ID

D.  

MTU

E.  

hello timer setting

Discussion 0
Question # 112

When configuring traffic engineering tunnels in Cisco MPLS core network, you see the traffic is not taking the expected path in the core.

Which command do you use to quickly check path of a TE tunnel?

Options:

A.  

Traceroute mpls ipv4 -tunnel destination

B.  

Ping

C.  

show mpls traffic-engineering tunnels

D.  

traceroute

Discussion 0
Question # 113

Question # 113

router(config)# route-map blackhole-trigger

router(config-route-map)# match tag 777

router(config-route-map)# set ip next-hop 10.0.1.1

router(config-route-map)# set origin igp

router{config-route-map)# set community no-export

Refer to the exhibit. EIGRP is running across the core to exchange internal routes, and each router maintains iBGP adjacency with the other routers on the network. An operator has configured static routes on the edge routers R1 and R2 for IP address 10.0.1.1, which is used as a black hole route as shown. Which configuration should the operator implement to the management router to create a route map that will redistribute tagged static routes into BGP and create a static route to blackhole traffic with tag 777 that is destined to the server at 192.168.10.100?

Options:

A.  

router(config)# router bgp 55100

router(config-router)# redistribute static route-map blackhole-trigger

router(config)# ip route 10.0.1.1 255.255.255.255 Null0 tag 777

B.  

router(config)# router bgp 55100

router(config-router)# redistribute static route-map blackhole-trigger

router(config)# ip route 192.168.10.100 255.255.255.255 Null0 tag 777

C.  

router(config)# router bgp 55100

router(config-router)# redistribute connected

router(config)# ip route 192.168.10.100 255.255.255.255 tag 777

D.  

router(config)# router bgp 55100

router(config-router)# redistribute connected route-map blackhole-trigger

router(config)# ip route 192.168.10.100 255.255.255.255 Null0 tag 777

Discussion 0
Question # 114

Refer to me exhibit.

Question # 114

A network operator recently configured BGP FlowSpec for me internal IT network What will be inferred from the configuration deployed on me network?

Options:

A.  

The policy is configured locally on CSRl and drops all traffic for TCP ports 80 and 443

B.  

The policy is learned via BGP FlowSpec and drops all traffic for TCP ports 80 and 443

C.  

The policy is warned via BC FlowSpec aid has active traffic

D.  

The policy is configured locally on CSR1 and currently has no active traffic

Discussion 0
Question # 115

Refer to the exhibit.

Question # 115

An engineer ran this show telemetry command to view subscription SUB11 on RouterX. The engineer then decided that RouterY should provide the same output lor sensor group SGroup13 as RouterX. The engineer cannot access RouterX to copy its configuration No access lists on the router block user access Which configuration must the engineer apply on RouterY to provide the same output from the show telemetry command?

A)

Question # 115

B)

Question # 115

C)

Question # 115

D)

Question # 115

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 116

Refer to the exhibit.

Question # 116

Which task completes the configuration?

Options:

A.  

Specify the maximum number of prefixes that R1 receives from neighbor 192.168.1.2.

B.  

Specify the source interface in the neighbor statement.

C.  

Specify the activate neighbor 192.168.1.2 under the IPv4 address family.

D.  

Specify the local-as value in the neighbor statement.

Discussion 0
Question # 117

How does Cisco MPLS TE use OSPF extensions to allow for optimized transit between a headend router and a destination router?

Options:

A.  

Router LSAs share router link advertisements to each router within the MPLS environment so that tunnels can be built bidirectionally.

B.  

ASBR Summary LSAs share OSPF domain information so that the two routers know how to reach each other during tunnel setup.

C.  

Network LSAs share RSVP information to build the tunnel between the two routers.

D.  

Opaque LSAs calculate and establish unidirectional tunnels that are set according to the network constraint.

Discussion 0
Question # 118

Refer to the exhibit:

Question # 118

What is the effect of this configuration?

Options:

A.  

The two routers fail to form a neighbor relationship because their system IDs are different.

B.  

The two routers successfully form a neighbor relationship

C.  

The two routers fail to form a neighbor relationship because the authentication configuration is missing

D.  

The two routers fail to form a neighbor relationship because they have different ISIS area types.

Discussion 0
Question # 119

Question # 119

Question # 119

Refer to the exhibit. LDP peering between routers R1 and R2 is dropped when the link between R1 and R2 is taken offline. However, LDP peering between R2 and R3 stays up when the link between R2 and R3 is taken offline. Which action allows MPLS traffic forwarding to continue normally if the link between R1 and R2 goes down?

Options:

A.  

Enable IGP and LDP Synchronization on R1.

B.  

Implement LDP Session Protection on R1.

C.  

Enable IGP and LDP Synchronization on R2.

D.  

Implement LDP Session Protection on R2.

Discussion 0
Question # 120

A network engineer is configuring RIP as the routing protocol between multiple PEs and CEs. The engineer must avoid advertising the same routes back to their sources. Which action should be performed on the routers to accomplish this task?

Options:

A.  

Configure a different route distinguisher for each prefix.

B.  

Define the site of origin on each interface.

C.  

Define VRFs on each device to separate the traffic.

D.  

Enable bidirectional forwarding detection on each device.

Discussion 0
Question # 121

Question # 121

Refer to the exhibit. An engineer started to configure a router for OSP

F.  

Which configuration must the engineer perform on the router without changing any interface configuration so that the router establishes an OSPF neighbor relationship with its peer?

Options:

A.  

router(config)# router ospf 11router(config-if)# no passive-interface ethernet 1/1

B.  

router(config)# interface ethernet 1/1router(config-if)# no shutdown

C.  

router(config)# interface ethernet 1/1router(config-if)# ip ospf hello-interval

D.  

router(config)# interface ethernet 1/1router(config-if)# ip ospf priority 0

Discussion 0
Question # 122

Which OS uses a distributed subsystem architecture?

Options:

A.  

IOS XE

B.  

IOS

C.  

IOS XR

D.  

CatOS

Discussion 0
Question # 123

Refer to the exhibit. An organization s network recently experienced several significant outages due to device failures. The network administrator just moved the network devices to a new central data center, and packets are switched using labels. The administrator Is now implementing NSF on the network to reduce potential risk factors in the event of another outage. Which task must the administrator perform on each router as part of the process?

Question # 123

Options:

A.  

Remove route filtering to speed repopulation of the link-state database

B.  

Copy the router s existing state information and share the file with its peers to enable BGP soft resets

C.  

Implement MPLS to forward packets while the RIB updates after a faliover.

D.  

Implement Graceful Restart to mitigate the delay in MPLS LDP synchronization when the IGP starts up.

Discussion 0
Question # 124

Question # 124

Refer to the exhibit. The radio network and packet core are using the route RX-RZ-RB to establish communication. The LDP session between 10.10.10.5 and 10.10.10.1 is experiencing link flapping at random intervals for 30-45 seconds each time. A network engineer must protect the LDP session and improve MPLS traffic convergence. Which action meets these requirements?

Options:

A.  

Enable IGP_LDP sysnc on RZ and RX

B.  

Add session protection duration 60 for peer_acl_1 under the MPLS LDP instance on RZ.

C.  

Attach peer_acl_1 in for session protection duration 1 on RX.

D.  

Configure Peer_acl_2 on RX and allow IP address 10.10.10.6 in LDP

Discussion 0
Question # 125

Refer to the exhibit.

Question # 125

Which configuration must be applied to each of the four routers on the network to reduce LDP LIB size and advertise label bindings for the /32 loopback IP space only?

Question # 125

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 126

Refer To the exhibit:

Question # 126

On R1, which output does the show isis neighbors command generate?

A)

Question # 126

B)

Question # 126

C)

Question # 126

D)

Question # 126

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 127

Which configuration mode do you use to apply the mpls Idp graceful-restart command in IOS XE Software? MPLS

Options:

A.  

MPLS

B.  

LDP neighbor

C.  

global

D.  

interface

Discussion 0
Question # 128

An ISP Is Implementing end-to-end fault monitoring for a customer based on the IEEE 802.3ah standard. The solution must detect when 15 or more corrupted Ethernet packets arrive within 10 ms and stop propagating traffic through the ISP backbone network or to the customer side. Which configuration must the ISP engineer apply?

Options:

A.  

ethernet oam link-monitoring enable

ethernet oam link-monitor crc-errors ingress time-window 10

ethernet oam link-monitor crc-errors ingress threshold high 15 ethernet oam link-monitor crc-errors egress time-window 10 ethernet oam link-monitor crc-errors egress threshold high 15 ethernet oam link-monitor high-threshold action shutdown-interface

B.  

ethernet oam link-monitoring

ethernet oam link-monitor receive-crc window 15

ethernet oam link-monitor receive-crc threshold high 10

ethernet oam link-monitor high-threshold action disable-interface

C.  

ethernet oam

ethernet oam link-monitor receive-crc window 10

ethernet oam link-monitor receive-crc threshold high 15

ethernet oam link-monitor transmit-crc window 10

ethernet oam link-monitor transmit-crc threshold high 15

ethernet oam link-monitor high-threshold action errordisable-interface

D.  

ethernet oam link-monitoring global enable

ethernet oam link-monitor receive crc-errors period 15

ethernet oam link-monitor receive crc-errors limit 15

ethernet oam link-monitor transmit crc-errors period 10

ethernet oam link-monitor transmit crc-errors limit 15

ethernet oam link-monitor limit action error-disable interface

Discussion 0
Question # 129

What is a feature of model-driven telemetry?

Options:

A.  

It occasionally streams to multiple servers in the network.

B.  

It is less secure because it uses community strings.

C.  

It uses the pull model to send requested data to a client when polled.

D.  

It uses the push model to stream data to desired destinations.

Discussion 0
Question # 130

Question # 130

Refer to the exhibit. Tier 1 ISP A is connected to small Tier 3 ISP

B.  

The EBGP routing protocol is used for route exchange. The networking team at ISP A noticed the flapping of BGP sessions with ISP

B.  

The team decides to Improve stability on the network by suppressing the subnet for 30 minutes when a session begins to flap. Which action must the team perform to meet this goal?

Options:

A.  

Implement a BGP route-penalty timer on ISP A router R1 with the bgp penalty-timer 30 250 750 15 command.

B.  

Implement BGP route dampening on ISP A router R1 with the bgp dampening 15 700 1500 30 command.

C.  

Implement BGP route suppression on ISP A router R2 with the bgp suppression 30 600 1200 30 command.

D.  

Implement a BGP route withdraw-delay timer on ISP B router R3 with the bgp withdraw-delay 30 15 90 30 command.

Discussion 0
Question # 131

Question # 131

Question # 131

Refer to the exhibit. The network operations team reported that the access site that is connected to R3 is not connecting to the application server in the data center and that all packets that are sent from the application server to the access site are dropped. The team verified that OSPF and BGP peerings are up in BGP AS 65101 and BGP AS 65201. R4 is expected to receive traffic from the application server route via OSP

F.  

Which action resolves this issue?

Options:

A.  

Remove the route-map on R4 when advertising 172.16.20.1 in BGP to R3.

B.  

Advertise application server 172.16.20.1 in the OSPF routing table on R6.

C.  

Allow 172.16.20.1 in the BGP advertisement on R3 in the route-map.

D.  

Add the next-hop-self command on R6 to enable R3 iBGP peering.

Discussion 0
Question # 132

What is a feature of mVPN?

Options:

A.  

It requires-uncast to be disabled on the multicast domain

B.  

It establishes multiple static MDTs for each multicast domain.

C.  

It provides the ability to support multicast over a Layer 3 VPN.

D.  

It requires the no ip mroute-cache command to be configured on the loopback interface of each BGP peer

Discussion 0
Question # 133

Question # 133

Refer to the exhibit. A network engineer is configuring an SNMP community on router RB with these requirements:

  • Allow read-only access for all objects to members of Access-List 10 that use the comaccess community string.
  • Other SNMP managers must not have access to objects.
  • SNMP authentication failure traps must be sent to SNMPv2c and then to the host using SNMPv2c with the public community string.

Which configuration meets these requirements?

Question # 133

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 134

An engineer is setting up overlapping VPNs to allow VRF ABC and XYZ to communicate with VRF CENTRAL but wants to make sure that VRF ABC and XYZ cannot communicate. Which configuration accomplishes these objectives?

Question # 134

Question # 134

Question # 134

Question # 134

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
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