F5 BIG-IP LTM Specialist: Maintain and Troubleshoot — Question 55

An LTM Specialist is troubleshooting an HTTP monitor. The pool member is accessible directly through a browser, but the HTTP monitor is marking the pool member as down.

GET / HTTP/1.1 -

HTTP/1.1 400 Bad Request -
DatE. Tue, 23 Oct 2012 21:39:07 GTM
Server: Apache/2.2.22 (FreeBSD) PHP/5.4.4
mod_ssl/2.2.22 OpenSSL/0.9.8q DAV/2

Content-LengtH. 226 -

Connection: close -
Content-TypE. text/html; charset=iso-8859-1
How should the LTM Specialist resolve this issue?

Answer options

• A. Add '200 OK' to the monitor's receive string.
• B. Add 'Connection: close\r\n' to the monitor's send string.
• C. Change the interval on the monitor from 5 seconds to 30 seconds.
• D. Change the HTTP version in the send string from HTTP/1.1 to HTTP/1.0.

Correct answer: D

Explanation

The correct answer is D because changing the HTTP version from HTTP/1.1 to HTTP/1.0 can resolve compatibility issues with certain servers that expect HTTP/1.0 requests. The other options do not address the underlying issue related to HTTP version compatibility, which is likely causing the monitor to fail despite the pool member being accessible directly.