101 · Question #678
What are two examples of failover capabilities of BIG-IP? (Choose two )
The correct answer is C. II failing over network connection based on heartbeat detection E. failing over serial cable based on voltage detection. BIG-IP HA supports network-based failover via heartbeat detection and hardwired serial cable failover that uses voltage-level hardware signals to detect peer failure.
Question
What are two examples of failover capabilities of BIG-IP? (Choose two )
Options
- Afailing over based on an over temperature alarm
- Bfailing over serial cable based on electric failure code
- CII failing over network connection based on heartbeat detection
- Dfading over network connection based on SNMP error
- Efailing over serial cable based on voltage detection
How the community answered
(48 responses)- A2% (1)
- B2% (1)
- C90% (43)
- D6% (3)
Why each option
BIG-IP HA supports network-based failover via heartbeat detection and hardwired serial cable failover that uses voltage-level hardware signals to detect peer failure.
BIG-IP does not provide a built-in failover trigger based on over-temperature alarms; thermal events result in hardware-level shutdown rather than an HA failover event.
'Electric failure code' is not a defined BIG-IP failover trigger; serial cable failover uses analog voltage signals, not discrete error codes.
BIG-IP sends periodic heartbeat packets between HA peers over a dedicated failover VLAN; when the standby unit stops receiving heartbeats within the configured timeout, it transitions to the active role, making heartbeat-based network failover a core BIG-IP HA mechanism.
SNMP is a monitoring and alerting protocol used for external visibility into system health, not a failover trigger mechanism within the BIG-IP HA framework.
BIG-IP hardwired (serial cable) failover relies on physical electrical signals transmitted over the failover cable, including voltage detection, so that a power loss or hardware fault on the active unit is immediately signaled to the standby peer without depending on network connectivity.
Concept tested: BIG-IP HA failover via heartbeat and serial cable
Source: https://support.f5.com/csp/article/K2397
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