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300-410 Practice Question: Router R3 has the following configuration: ```…

Router R3 has the following configuration:

```

interface GigabitEthernet0/4
 ip address 10.3.3.3 255.255.255.0
 ip policy route-map PBR-IN

! route-map PBR-IN permit 10 match ip address 102 set ip next-hop verify-availability 192.168.2.1 10 track 1 !

access-list 102 permit ip 10.3.3.0 0.0.0.255 any

``` What is the effect of the 'set ip next-hop verify-availability' command?

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

✓

The next-hop 192.168.2.1 is used only if track object 1 is up; otherwise, normal routing applies.

This command enables Cisco Express Forwarding (CEF) and uses tracking to verify next-hop reachability. If the tracked object (track 1) is down, the next-hop is not used.

Answer analysis

Option-by-option breakdown

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

  • ✓

    The next-hop 192.168.2.1 is used only if track object 1 is up; otherwise, normal routing applies.

    Why this is correct

    verify-availability checks the track object; if down, PBR does not use that next-hop and falls back to routing table.

  • ✗

    The next-hop 192.168.2.1 is always used regardless of track status.

    Why it's wrong here

    verify-availability makes PBR conditional on the track object.

  • ✗

    The router pings 192.168.2.1 every 10 seconds to verify reachability.

    Why it's wrong here

    The '10' is the track object number, not a timer. Tracking uses mechanisms like IP SLA, not ICMP pings by default.

  • ✗

    The configuration is invalid because 'verify-availability' requires a sequence number.

    Why it's wrong here

    The syntax is correct: 'set ip next-hop verify-availability [next-hop] [sequence] track [number]'.

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Same concept, more angles

1 more way this is tested on 300-410

These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.

Variation 1. When using 'set ip next-hop verify-availability', what mechanism does the router use to determine if the next-hop is reachable?

medium
  • A.It sends an ICMP echo request to the next-hop every 10 seconds.
  • B.It checks the ARP table for the next-hop MAC address.
  • ✓ C.It uses a tracked object that can be based on IP SLA, interface state, or other criteria.
  • D.It performs a recursive routing table lookup to see if the next-hop is reachable.

Why C: The 'verify-availability' option uses a tracked object (configured with the 'track' command) which can be based on IP SLA, interface line-protocol, or other criteria. It does not use ARP or ICMP by default.

JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This 300-410 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 300-410 exam.