201 · Question #98
Assume the bigd daemon fails on the active system. Which three are possible results. (Choose three.)
The correct answer is A. The active system will restart the bigd daemon and continue in active mode. C. The active system will reboot and the standby system will go into active mode. D. The active system will failover and the standby system will go into active mode. If the bigd daemon fails on an active F5 BIG-IP system, the system can attempt to restart the daemon, reboot entirely, or trigger a failover to a standby device.
Question
Assume the bigd daemon fails on the active system. Which three are possible results. (Choose three.)
Options
- AThe active system will restart the bigd daemon and continue in active mode.
- BThe active system will restart the tmm daemon and continue in active mode.
- CThe active system will reboot and the standby system will go into active mode.
- DThe active system will failover and the standby system will go into active mode.
- EThe active system will continue in active mode but gather member and node state information from the
How the community answered
(39 responses)- A77% (30)
- B15% (6)
- E8% (3)
Why each option
If the bigd daemon fails on an active F5 BIG-IP system, the system can attempt to restart the daemon, reboot entirely, or trigger a failover to a standby device.
The bigd daemon is monitored, and if it fails, the system's watchdog process can attempt to restart it, allowing the active unit to continue operating normally.
The bigd daemon is responsible for health monitoring, whereas the tmm daemon is responsible for traffic processing; a bigd failure does not cause tmm to restart.
If the bigd daemon repeatedly fails or if its failure is deemed critical enough, the F5 device can be configured to reboot itself, which would cause a failover to the standby system.
A bigd daemon failure is a critical event that can be configured to trigger a failover to the standby system, ensuring service continuity by transferring the active role.
Without a functioning bigd daemon, the active system cannot effectively gather current member and node state information, making this statement incorrect.
Concept tested: F5 BIG-IP bigd daemon failure impact
Source: https://support.f5.com/csp/article/K14197
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