101 · Question #57
Which two statements describe differences between the active and standby systems. (Choose two.)
The correct answer is C. Virtual server addresses are hosted only by the active system. E. Floating self-IP addresses are hosted only by the active system.. In an F5 BIG-IP active/standby pair, only the active unit owns and responds to virtual server addresses and floating self-IPs, which move to the standby during failover.
Question
Which two statements describe differences between the active and standby systems. (Choose two.)
Options
- AMonitors are performed only by the active system.
- BFailover triggers only cause changes on the active system.
- CVirtual server addresses are hosted only by the active system.
- DConfiguration changes can only be made on the active system.
- EFloating self-IP addresses are hosted only by the active system.
How the community answered
(14 responses)- B7% (1)
- C93% (13)
Why each option
In an F5 BIG-IP active/standby pair, only the active unit owns and responds to virtual server addresses and floating self-IPs, which move to the standby during failover.
Both the active and standby systems perform health monitors independently so that the standby has current pool member status information if it must take over.
Failover triggers are evaluated on both systems - the standby monitors conditions so it can detect when it needs to assume the active role.
Virtual server addresses are bound exclusively to the active unit because only the active system processes client traffic. During a failover event, these addresses migrate to the newly promoted active system so that traffic handling continues without manual reconfiguration.
Configuration changes made on either unit are synchronized to the peer via config sync, so changes are not restricted to the active system alone.
Floating self-IP addresses are owned solely by the active system. Unlike non-floating self-IPs that are tied permanently to a specific device, floating self-IPs are designed to move between devices during failover, but at any given moment only the active unit holds them.
Concept tested: F5 BIG-IP active/standby HA IP ownership
Source: https://techdocs.f5.com/en-us/bigip-15-1-0/big-ip-device-service-clustering-administration/device-service-clustering-concepts.html
Topics
Community Discussion
No community discussion yet for this question.