F5CABR: F5 Certified Administrator, BIG-IP Recertification

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QuestionQ10

Pools and Pool Members

A BIG-IP Administrator assigns the default http health monitor to a pool that has three members listening on port 80. When the administrator connects to each pool member using the CURL utility:

  • Two of the members respond with a status of 404 Not Found
  • The third member responds with 200 OK

What will the pool show for member availability?

Explanation

The default http monitor in BIG-IP LTM does not include a configured Receive String, so it only checks that a pool member accepts a TCP connection and returns some HTTP response — it does not inspect or validate the actual HTTP status code returned. Since all three members respond to the HTTP GET request (whether with 404 or 200), the monitor considers all of them to have passed the health check, and the pool reports all members as online/available.

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