Citrix ADC 13 Administrator — Question 66

A user needs to resolve the domain training.citrix.com, and the information is NOT available in resolver cache and Local Domain Name Server (DNS).
Where will the request be forwarded next?

Answer options

• A. Root server
• B. Authoritative Name server
• C. Top-level Domain server
• D. Second-level Domain server

Correct answer: A

Explanation

The correct answer is A, the Root server, because if the local resolver cannot find the domain information, it first queries the Root DNS servers to get the address of the Top-level Domain (TLD) servers. The other options are incorrect as they represent different levels in the DNS hierarchy that would not be queried until after reaching the Root server.