301B: BIG-IP LTM Specialist: Maintain and TroubleshootDemo

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QuestionQ183

Identify and Resolve LTM Device Issues

Question Image

Refer to the exhibit.

An LTM Specialist is troubleshooting a new HTTP monitor on a pool. The pool member functions correctly when accessed directly through a browser, but the monitor marks the member as down. During troubleshooting, the LTM Specialist captured the monitor traffic with tcpdump.

How should the LTM Specialist resolve the issue?

  • A Add the 'http' monitor to the pool.
  • B Add the 'icmp' monitor to the node.
  • C Modify the receive string to valid content.
  • D Correct the firewall rules on the pool member.
Explanation

An HTTP monitor’s receive string must match text in the returned resource. A HEAD request returns response headers without an HTML message body, so <html cannot match the captured response even though it returns HTTP/1.1 200 OK. Configure the receive string to content present in that response, such as its successful status line.

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