F5 BIG-IP LTM Specialist: Maintain and Troubleshoot — Question 135

A failover event is recorded in the following log messages:
Jan 01 00:56:56 BIG-IP notice mcpd[5318]: 01070727:5: Pool /Common/my-pool member /Common/10.0.0.10:80 monitor status down.
Jan 01 00:56:56 BIG-IP notice sod[5855]: 010c0045:5: Leaving active, group score 10 peer group score 20.
Jan 01 00:56:56 BIG-IP notice sod[5855]: 010c0052:5: Standby for traffic group /Common/traffic-group-1.
Jan 01 00:56:56 BIG-IP notice sod[5855]: 010c0018:5: Standby
Jan 01 00:57:06 BIG-IP notice logger: /usr/bin/tmipsecd --tmmcount 4 ==> /usr/bin/bigstart stop racoon
What is the cause of the failover?

Answer options

• A. The HA group score changed.
• B. No traffic is seen on traffic-group-1.
• C. The peer device left the traffic group.
• D. The racoon service stopped responding.

Correct answer: A

Explanation

The correct answer is A because the log entry indicates a change in the HA group score, which is a primary factor in triggering a failover. The other options do not reflect the events described in the logs, such as traffic detection or the status of the racoon service.