Exam F5CAB2 Topic 2 Question 26 Discussion

Actual exam question for F5's F5CAB2 exam
Question #: 26
Topic #: 2
Which statement is true concerning the default communication between a redundant pair of BIG-IP devices?

Suggested Answer: C Vote an answer

Redundant BIG-IP systems (HA pairs) must maintain constant communication to monitor the health of the peer and synchr15onize states.16
* Heartbeats: By default, even with a serial cable, th17e BIG-IP systems exchange "heartbeat" packets over the network to determine if the peer is still alive.
* Network Failover: This involves the exchange of UDP packets (typically on port 1026) at regular intervals.
* Device Service Clustering (DSC): Modern BIG-IP versions use the Central Management (cm) infrastructure to communicate configuration status and sync status constantly.
* Clarification on others: Port lockdown does affect HA communication if misconfigured (A is false).
Mirroring uses separate channels (B is false). Mirroring is never sent over the serial cable because it requires high bandwidth (D is false).

by Hulda at Mar 29, 2026, 07:16 AM

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