201 · Question #61
Assuming that systems are synchronized, which action could take place if the fail over cable is connected correctly and working properly, but the systems cannot communicate over the network due to…
The correct answer is B. Whether or not network failover is enabled, the standby system will stay in standby mode. In a synchronized high-availability pair, if the dedicated failover cable is operational, the active system remains active even if external network connectivity is lost, as the standby system will continue to receive heartbeats.
Question
Assuming that systems are synchronized, which action could take place if the fail over cable is connected correctly and working properly, but the systems cannot communicate over the network due to external network problems.
Options
- AIf network failover is enabled, the standby system will assume the active mode.
- BWhether or not network failover is enabled, the standby system will stay in standby mode.
- CWhether or not network failover is enabled, the standby system will assume the active mode.
- DIf network failover is enabled, the standby system will go into active mode but only until the network recovers.
How the community answered
(56 responses)- A7% (4)
- B88% (49)
- C2% (1)
- D4% (2)
Why each option
In a synchronized high-availability pair, if the dedicated failover cable is operational, the active system remains active even if external network connectivity is lost, as the standby system will continue to receive heartbeats.
A failover typically occurs when the active system fails or its local HA interfaces go down, not solely due to external network problems if the HA link is still functional.
When a high-availability pair has a working failover cable, the active unit can still communicate its operational status to the standby unit, even if the external network is unreachable. Because the active unit is still perceived as functional by the standby unit via the dedicated link, a failover event is not triggered, and the standby system remains in standby mode.
This is incorrect because failover mechanisms are designed to prevent simultaneous active states and only promote the standby if the active unit is truly unavailable or failed.
Failover is generally a state change based on the active unit's health or connectivity, and if the HA link is functional, an external network problem alone does not cause a temporary failover.
Concept tested: High availability failover logic
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