Exam F5CAB4 Topic 9 Question 30 Discussion

Actual exam question for F5's F5CAB4 exam
Question #: 30
Topic #: 9
When looking at this BIG-IP prompt: root@virtual-bigip1] Peer Time Out of Sync What does the message indicate? (Choose one answer)

Suggested Answer: D Vote an answer

On BIG-IP systems that participate in a Device Service Cluster (DSC), each device compares the remote device's system time to its own system time. If the difference is outside the ConfigSync time threshold (commonly referenced as 3 seconds by default), BIG-IP updates the shell prompt to show "Peer Time Out of Sync", and ConfigSync operations may fail until time is corrected (typically by fixing NTP reachability
/configuration, or in some cases adjusting the threshold). (cdn.studio.f5.com) This message is specifically about time drift between peers in the trust domain/DSC-not basic reachability (so B is not what it means), and it does not prove which side is "correct" (so C is too specific). It also doesn't directly mean an NTP source is "skewed" (A can be a cause, but the prompt message itself indicates the peer- to-peer time mismatch condition). (cdn.studio.f5.com)

by Pearl at Aug 20, 2026, 02:33 PM

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