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300-410 Practice Question: Runs the following command on Router R1: R1# show…

A network engineer runs the following command on Router R1:

R1# show ip nhrp nhs

NHS: 172.16.0.1 Tunnel0 status: registered NHS: 172.16.0.2 Tunnel0 status: not registered

Based on this output, what is the problem?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Router R1 is not registered with the second NHS, indicating a registration failure.

The show ip nhrp nhs command displays the NHRP server (NHS) registrations. The output shows that R1 is registered with NHS 172.16.0.1 but not registered with NHS 172.16.0.2. This indicates a problem with the registration to the second NHS, possibly due to authentication mismatch, reachability issues, or configuration error.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✓

    Router R1 is not registered with the second NHS, indicating a registration failure.

    Why this is correct

    Status 'not registered' for second NHS indicates a problem.

  • ✗

    Both NHS are registered successfully.

    Why it's wrong here

    One is not registered.

  • ✗

    The tunnel interface is down.

    Why it's wrong here

    Registration with first NHS implies tunnel is up.

  • ✗

    The NHS addresses are swapped.

    Why it's wrong here

    No evidence of swapping.

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

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