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300-420 Practice Questions

Designing Cisco Enterprise Networks (ENSLD)

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Question # 21

Refer to the exhibit.

Question # 21

An architect must design an IGP solution for an enterprise customer. The design must support:

Physical link flaps should have minimal impact.

Access routers should converge quickly after a link failure.

Which two ISIS solutions should the architect include in the design? (Choose two.)

Options:

A.  

Use BGP to IS-IS redistribution to advertise all Internet routes in the Level 1 area.

B.  

Advertise the IS-IS interface and loopback IP address toward the Internet and data center.

C.  

Reduce SPF and PRC intervals to improve convergence time.

D.  

Configure all access and aggregate routers to establish Level 1 / Level 2 adjacencies across the network.

E.  

Configure access routers to establish a Level 1 adjacency and aggregate routers to establish a Level 1 /

Level 2 adjacency.

Discussion 0
Question # 22

Refer to the exhibit.

Question # 22

An architect is designing a routing solution for a company. The new design will add a circuit routers C and D to protect against loss of connectivity to 10.0.4.0/24 during a link failure between routers B and

D.  

Which solution must the architect choose?

Options:

A.  

Stub connected

B.  

Stub redistributed

C.  

Stub receive-only

D.  

Stub leak-map

Discussion 0
Question # 23

An engineer must design a multicast network for a financial application. Most of the multicast sources also receive multicast traffic (many-to-many deployment model). To better scale routing tables, the design must not use source trees. Which multicast protocol satisfies these requirements?

Options:

A.  

PIM-SSM

B.  

PIM-SM

C.  

MSDP

D.  

BIDIR-PIM

Discussion 0
Question # 24

Which two best practices must be followed when designing an out-of-band management network? (Choose two.)

Options:

A.  

    Enforce access control

B.  

    Facilitate network integration

C.  

    Back up data using the management network

D.  

    Ensure that the management network is a backup to the data network

E.  

    Ensure network isolation

Discussion 0
Question # 25

A company must automate a set of complex changes aligned with DR testing in the network. These changes are specific, and the DR playbook will be adjusted in the future. The playbook has diverse routing and switching assets in scope as well as multiple vendor and hardware platforms. A developer will create a thin, web front-end microservice and integrate with an Open daylight controller to push changes to the network. Which YANG model should be used?

Options:

A.  

Use a single native vendor YANG model to minimize development time

B.  

Use an open YANG model to allow the reuse of code and standardize the implementation across platforms

C.  

Use multiple native vendor YANG models to provide code consistency.

D.  

Develop an individualized YANG model to minimize development resources and time to market.

Discussion 0
Question # 26

Which type of rendezvous point deployment is standards-based and support dynamic RP discovery?

Options:

A.  

Auto-RP

B.  

Anycast-RP

C.  

bootstrap router

D.  

static RP

Discussion 0
Question # 27

Question # 27

Refer to the exhibit. Which method must an architect use to provide connectivity between the mail servers?

Options:

A.  

ISATAP

B.  

6to4

C.  

IPv4 compaliDie

D.  

6rd

Discussion 0
Question # 28

Question # 28

Refer to the exhibit. Where must an architect plan for route summarization for the topology?

Options:

A.  

from the core toward the aggregation and the access toward the aggregation

B.  

from the core toward the aggregation and the aggregation toward the core

C.  

from the aggregation toward the access and the access toward the aggregation

D.  

from the aggregation toward the core and the aggregation toward the access

Discussion 0
Question # 29

Question # 29

Refer to the exhibit. A network engineer with an employee ID: 4384:99:754 must design a BGP solution based on these conditions:

    Traffic sessions occur between the branches and the data center.

    Branch B has limited resources to process routing updates.

    HQ must filter out all prefixes from branch A to R4.

Which outbound route filtering (ORF) solution must the engineer choose?

Options:

A.  

Use a prefix list with the 192.168.10.0/24 subnet for ORF on R4.

B.  

Use a prefix list with the 10.10.10.0/24 subnet for ORF on R2

C.  

Use a prefix list with the 10.10.10.0/24 subnet for ORF on R5.

D.  

Use a prefix list with the 192.168.10.0/24 subnet for ORF on R2.

Discussion 0
Question # 30

Drag and drop the descriptions from the left onto the Cisco SD-WAN component they describe on the right.

Question # 30

Options:

Discussion 0
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