Cisco 642-775 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 642-775
Exam Name/Title: Maintaining Cisco Service Provider Routing Protocols (MSPRP）
Certification Provider: Cisco
Corresponding Certification: CCNP SP Operations

Exam Questions: 70
Updated On: Aug 14, 2026

Question #1

What is the most significant BGP attribute that is used for path selection in Cisco IOS XR Software?

A. Weight

B. router ID

C. MED

D. local preference

Discussion 0

Correct Answer: A Vote an answer

Question #2

DRAG DROP

Discussion 0

Correct Answer:

Question #3

Refer to the exhibit. Two Cisco IOS routers that are configured with OSPF cannot establish adjacency. Examine the information collected from r1 and r2 routers. Why cannot adjacency be established?

A. different MTU

B. area ID mismatch

C. network-type mismatch

D. authentication password mismatch

Discussion 0

Correct Answer: A Vote an answer

Question #4

Which is true when troubleshooting Cisco IOS XR Software by using the CLI?

A. Both trace and debug features need to be manually enabled when troubleshooting

B. Debug commands are less CPU-intensive than trace commands.

C. Trace command logs will survive a system reboot, bill debug will not

D. Trace uses a butter that is shared by all processes

Discussion 0

Correct Answer: A Vote an answer

Question #5

What effect will the command timers throttle spf 5 1000 90000 have on an OSPF router?

A. The router dynamically reduces the frequency with which it computes the SPF tree during times of network instability.

B. When recalculating the SPF tree, the LSA update timers are changed to lessen the impact on memory and CPU usage during LSA floods.

C. The command improves router performance by limiting the amount of CPU cycles that are consumed over time when calculating the SPF tree.

D. The command specifies the number of LSAs that must be received in a particular time frame before initiating a complete SPF recalculation.

Discussion 0

Correct Answer: A Vote an answer

Question #6

Refer to the exhibit.

The Cisco IOS software platform PE1 has an interface Gigabit Ethernet 0/0 that is connected to the Cisco IOS XR platform PE4 interface Gigabit Ethernet 0/4/0/2. OSPF cannot establish an adjacency. What is possible solution to the problem?

A. Configure OSPF on each platform to ignore the interface MTU values.

B. Change the interface configurations on both platforms to point-to-point network type.

C. Adjust the Cisco IOS XR software hello and dead times to match the Cisco IOS software default timers

D. Explicitly configure the cisco IOS XR software interface to be the active OSPF interface.

Discussion 0

Correct Answer: A Vote an answer

Question #7

Which protocol establishes communications over TCP port 179?

A. PIM

B. BGP

C. EIGRP

D. IS-IS

E. IPSec

F. OSPF

Discussion 0

Correct Answer: B Vote an answer

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