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Free Cisco Certified Design Expert (CCDE v3.1) Practice Questions

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Total Questions : 503

Start with our free 400-007 practice questions, carefully crafted to mirror the domains, phrasing, and difficulty of the real CCDE v3.0 exam. Each 400-007 exam question comes with a detailed rationale that explains not just which answer is correct but why the others fall short. That's how concepts stick. Use the free set to benchmark yourself: identify your Cisco weak domains, see where you're losing marks, and build a focused study plan in minutes.

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Question # 1

A multicast network is using Bidirectional PIM. Which two combined actions achieve high availability so that two RPs within the same network can act in a redundant manner? (Choose two)

Options:

A.  

Use two phantom RP addresses

B.  

Manipulate the administration distance of the unicast routes to the two RPs

C.  

Manipulate the multicast routing table by creating static mroutes to the two RPs

D.  

Advertise the two RP addresses in the routing protocol

E.  

Use anycast RP based on MSDP peering between the two RPs

F.  

Control routing to the two RPs through a longest match prefix

Discussion 0
Question # 2

A network designer should follow a methodology that must guide the entire lifecycle of the design process In the early phases of the process, technology requirements are evaluated and validated, which allows for proper planning in response to changes in the infrastructure and requirements for resources Which two elements help make a company more agile by adjusting them on a regular basis? (Choose two.)

Options:

A.  

application and services access

B.  

throughput per application

C.  

establishing business requirements

D.  

technology strategies

E.  

configuration management

Discussion 0
Question # 3

What are two design constraints in a standard spine and leaf architecture? (Choose two.)

Options:

A.  

Spine switches can connect to each other.

B.  

Each spine switch must connect to every leaf switch.

C.  

Leaf switches must connect to each other.

D.  

Endpoints connect only to the spine switches.

E.  

Each leaf switch must connect to every spine switch.

Discussion 0
Question # 4

Network operators have many options available, from fully centralized to fully distributed control planes, and each approach has its own set of characteristics. Drag and drop the characteristics from the left onto the corresponding approach on the right.

Question # 4

Options:

Discussion 0
Question # 5

An engineer must redesign the QoS strategy for Company XYZ The current network is experiencing many dropped packets due to oversubscription of the guaranteed bandwidth allocated by the service provider Company XYZ wants a design with a QoS strategy that controls the traffic flow leaving the Edge router to minimize packet drops Which QoS technique can be recommended as a solution?

Options:

A.  

LLQ

B.  

rate-Limiting

C.  

policing

D.  

traffic shaping

Discussion 0
Question # 6

Which effect of using ingress filtering to prevent spoofed addresses on a network design is true?

Options:

A.  

It reduces the effectiveness of DDoS attacks when associated with DSCP remarking to Scavenger.

B.  

It protects the network infrastructure against spoofed DDoS attacks.

C.  

It classifies bogon traffic and remarks it with DSCP bulk.

D.  

It filters RFC 1918 IP addresses.

Discussion 0
Question # 7

A network hacker is trying to interrupt the transport packet on IPsec. A packet with duplicate sequence numbers is introduced. The customer sends high-priority traffic during this window. Which design parameter should be considered to mitigate this issue?

Options:

A.  

Classify and mark duplicate sequence packets.

B.  

Enable anti-replay window.

C.  

Increase QoS shape policy.

D.  

Restrict key operations in the IPsec tunnel.

Discussion 0
Question # 8

A network architect must redesign a service provider edge, where multiservice and multitenant PEs are currently present. Which design feature should be minimized in the new design to achieve reliability?

Options:

A.  

bridging

B.  

fate sharing

C.  

redundancy

D.  

unicast overlay routing

Discussion 0
Question # 9

SDN emerged as a technology trend that attracted many industries to move from traditional networks to SDN. Which challenge is solved by SDN for cloud service providers?

Options:

A.  

Need for intelligent traffic monitoring

B.  

Exponential growth of resource-intensive applications

C.  

Complex and distributed management flow

D.  

Higher operating expense and capital expenditure

Discussion 0
Question # 10

Which feature must be part of the network design to wait a predetermined amount of time before notifying the routing protocol of a change in the path in the network?

Options:

A.  

Transmit delay

B.  

Throttle timer

C.  

SPF hold time

D.  

Interface dampening

Discussion 0

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