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Cisco 642-874 : Designing Cisco Network Service Architectures

642-874

Exam Code: 642-874

Exam Name: Designing Cisco Network Service Architectures

Updated: Jun 09, 2025

Q & A: 162 Questions and Answers

642-874 Free Demo download

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Cisco Designing Cisco Network Service Architectures Sample Questions:

1. Which three major points are important for network virtualization to separate logical networks on a shared physical infrastructure? (Choose three.)

A) VSANs
B) control plane
C) VLANs
D) management plane
E) VPNs
F) data plane


2. A network engineer must provide 40mb connections from the data center to the corporate office and two remote offices. What WAN connectivity option will outsource the routing in cooperation with the service provider?

A) Ethernet Private Line
B) MPLS VPN
C) VPLS
D) Ethernet Multipoint Service


3. Which option is a recommended firewall topology?

A) using one firewall with stateful failover enabled in routed mode
B) using two firewalls in active/active mode
C) using two firewalls with stateful failover switched mode
D) using one firewall with NAT enabled in transparent mode


4. Which two of these are correct regarding the recommended practice for distribution layer design? (Choose two.)

A) use a Layer 3 link between distribution switches without route summarization
B) use a redundant link to the core
C) use a Layer 3 link between distribution switches with route summarization
D) never use a redundant link to the core because of convergence issues
E) use a Layer 2 link between distribution switches


5. Which of the following facts must be considered when designing for IP telephony within an Enterprise Campus network?

A) IP phones have no voice and data VLAN separation, so security policies must be based on upper layer traffic characteristics.
B) Though multi-VLAN access ports are set to dot1q and carry more than two VLANs they are not trunk ports.
C) Because the IP phone is a three-port switch, IP telephony extends the network edge, impacting the Distribution layer.
D) Video and voice are alike in being bursty and bandwidth intensive, and thus impose requirements to be lossless, and have minimized delay and jitter.


Solutions:

Question # 1
Answer: B,D,F
Question # 2
Answer: B
Question # 3
Answer: B
Question # 4
Answer: B,C
Question # 5
Answer: B

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