F5 TMOS Administration — Question 9

The ICMP monitor has been assigned to all nodes. In addition, all pools have been assigned custom monitors. The pool is marked available. If a pool is marked available (green) which situation is sufficient to cause this?

Answer options

• A. All of the pool member nodes are responding to the ICMP monitor as expected.
• B. Less than 50% of the pool member nodes responded to the ICMP echo request.
• C. All of the members of the pool have had their content updated recently and their responses no longer match the monitor.
• D. Over 25% of the pool members have had their content updated and it no longer matches the receive rule of the custom monitor. The other respond as expected.

Correct answer: D

Explanation

Option D is correct because even if over 25% of the pool members have content that doesn't match the custom monitor, as long as the others are responding correctly, the pool can still be marked available. Option A is incorrect as it indicates all nodes are responding, which does not specifically address the custom monitor scenario. Option B is wrong because having less than 50% response is not sufficient for an available status. Option C is also incorrect since if all members are out of sync with the monitor, the pool cannot be marked available.