View all questions & answers for the BIG-IP Administration Data Plane Configuration (F5CAB3) exam


Question 46 Discussion

Refer to the exhibit. Due to a change in application requirements, a BIG-IP Administrator needs to modify the configuration of a Virtual Server to include a Fallback Persistence Profile. Which persistence profile type should the BIG-IP Administrator use for this purpose? (Choose one answer)

  • A. Universal
  • B. SSL
  • C. Hash
  • D. Source Address Affinity
Correct Answer: D

Brave-Dump Clients Votes

D 66.67%
A 33.33%

Comments



Payton K 2026-01-09 21:14:23

Selected Answers: A


Why this is correct (based on the screenshot)

The image shows a Virtual Server Load Balancing configuration with:

Default Persistence Profile: cookie

Fallback Persistence Profile: None

When an application requires a Fallback Persistence Profile, BIG-IP supports only one persistence type for fallback use:

👉 Universal Persistence

Universal persistence is designed specifically to act as a fallback when the primary persistence method (such as cookies) is unavailable.

Steven Knight 2026-02-08 17:37:21

Selected Answers: D


Source Address Affinity works every time, regardless of:
• HTTP vs HTTPS
• Missing cookies
• Broken headers
• API vs browser
• Mobile vs desktop
• Encrypted payloads
It’s the only persistence method that is universally safe as fallback.
  • Brave-Dumps Admin 2026-02-08 23:26:22
    Exactly, Thanks

Anonymous User 2026-02-25 23:55:23

Selected Answers: D


D. Source Address Affinity
When the default persistence profile is cookie, the appropriate fallback persistence profile is Source Address Affinity. Cookie persistence only works when a client supports cookies; if a client doesn't support cookies, the fallback kicks in — and Source Address Affinity (which tracks clients by IP address) is the standard fallback choice for cookie-based persistence.