View all questions & answers for the BIG-IP Administration Support and Troubleshooting (F5CAB5) exam


Question 35 Discussion

Refer to the exhibit. An LTM device has a virtual server mapped to www.f5.com . Users report that when they connect to /resources/201.1.2h.1_1.com they are unable to receive content. What is the likely cause of the issue? (Choose one answer)

  • A. The pool associated with the virtual server does not have priority group activation enabled.
  • B. The virtual address does not have ARP enabled.
  • C. The virtual address does not have route advertising enabled.
  • D. The pool associated with the virtual server is failing its health check
Correct Answer: A

Brave-Dump Clients Votes

D 50%
B 50%

Comments



Anonymous User 2026-01-13 03:05:51

Selected Answers: D


ption analysis:

A. The pool associated with the virtual server does not have priority group activation enabled

Priority groups control which members receive traffic when you have multiple priority groups.

But the pool is Round Robin, no priority group configured.

This would not prevent users from receiving content if members are healthy. ❌

B. The virtual address does not have ARP enabled

If ARP is disabled for the virtual address, the BIG-IP will not respond to ARP requests, so clients cannot reach the VIP.

In the screenshot, I don’t see ARP explicitly disabled, so default is enabled. ❌

C. The virtual address does not have route advertising enabled

Route advertisement is only required if you’re using dynamic routing or floating IPs across multiple devices.

For a single standalone BIG-IP, route advertisement is not required for traffic. ❌

D. The pool associated with the virtual server is failing its health check ✅

This is the most likely cause.

Even though the pool members are “Enabled” in the pool configuration, the virtual server will not send traffic to members that fail health checks.

Users trying to access the application see no content, which matches the described symptom.

Alexis Evencio Lopez España 2026-02-16 22:14:13

Selected Answers: B


The correct option is B, since ARP is not enabled in the virtual address section of the image.

If ARP is disabled:

The Big IP address does not respond to ARP requests for that IP address.

Devices on the same VLAN cannot resolve the MAC address.

No one can connect.