201 · Question #289
The current status of a given pool member is unknown. Which condition could explain that state?
The correct answer is A. The member has no monitor assigned to it. A pool member's status will be unknown if no health monitor has been assigned to it, preventing the system from determining its availability.
Question
The current status of a given pool member is unknown. Which condition could explain that state?
Options
- AThe member has no monitor assigned to it.
- BThe member has a monitor assigned to it and the most recent monitor was successful.
- CThe member has a monitor assigned to it and the monitor did not succeed during the most recent
- DThe member's node has a monitor assigned to it and the monitor did not succeed during the most
How the community answered
(47 responses)- A91% (43)
- B4% (2)
- C2% (1)
- D2% (1)
Why each option
A pool member's status will be unknown if no health monitor has been assigned to it, preventing the system from determining its availability.
If no health monitor is assigned to a pool member, the system has no mechanism to check its health or responsiveness, thus its status defaults to 'unknown'.
A successful monitor would mark the pool member as 'up' or 'available', not 'unknown'.
A failed monitor would mark the pool member as 'down' or 'unavailable', not 'unknown'.
If a node's monitor fails, the node and its associated pool members would be marked 'down', reflecting the node's state, rather than 'unknown' due to a lack of a member monitor.
Concept tested: Pool member health status determination without monitors
Source: https://support.f5.com/csp/article/K13349
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