Cisco 642-871 Exam : Designing Cisco network Service Architectures (ARCH)

  • Exam Code: 642-871
  • Exam Name: Designing Cisco network Service Architectures (ARCH)
  • Updated: Sep 02, 2025
  • Q & A: 196 Questions and Answers

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Cisco Designing Cisco network Service Architectures (ARCH) Sample Questions:

1. A security analysis at The Potomac Canal Company recommends installing an IDS appliance and a firewall appliance. These appliances should connect directly into a Layer 3 switch. A load balancer and SSL termination have also been recommended.Potomac's management have expressed concern over the cost. You suggest using integrated blades.
What is one advantage and one disadvantage of your design proposal? (Choose two.)

A) This configuration can inhibit failover in high-availability scenarios without a high degree of management.
B) The data center would need several devices to achieve its goal.
C) Since integrated blades are rarely used in high-availability failover scenarios, this creates a support issue.
D) Increased usage of standalone devices is cost-effective.
E) Using integrated blades would only require two devices.
F) Putting all security devices in a single chassis provides a single point of failure.


2. HOTSPOT
Look at the picture.




3. Which signaling technique is used for intercluster calls between Call Manager clusters?

A) Skinny
B) SS7
C) MGCP
D) H.323


4. If a switch fabric is currently maintaining a percentage availability of .9995 and the route processor has a percentage availability of .9997, what is the current system availability?

A) .9997
B) .9996
C) .9992
D) 1.999


5. Which two of the following Cisco router platforms support Multicast Distributed Fast Switching? (Choose two.)

A) 7500 series
B) 3600 series
C) 10000 series
D) 12000 series
E) 7200 series with NSE-1
F) ISR 1800/2800/3800 series


Solutions:

Question # 1
Answer: E,F
Question # 2
Answer: Only visible for members
Question # 3
Answer: D
Question # 4
Answer: C
Question # 5
Answer: A,D

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