F5 Application Delivery Fundamentals — Question 116

When DNS_REV is used as the probe protocol by the GTM System, which information is expected in the response from the probe?

Answer options

• A. a reverse name lookup of the GTM System
• B. the list of root servers known by the local DNS
• C. the FQDN of the local DNS being probed for metric information
• D. the revision number of BIND running on the requesting DNS server

Correct answer: C

Explanation

The correct answer is C, as the DNS_REV probe protocol specifically aims to retrieve the Fully Qualified Domain Name (FQDN) of the local DNS being assessed. Options A, B, and D do not align with the purpose of the DNS_REV protocol, which focuses on obtaining metric-related information rather than performing lookups or providing server lists.