A company wants to host a publicly available server that performs the following functions: Evaluates MX record lookup Can perform authenticated requests for A and AAA records Uses RRSIG Which of the following should the company use to fulfill the above requirements?

Question

Quizplus · Accepted Answer

DNS Security Extensions (DNSSEC) provides, among other things, cryptographic authenticity of responses using Resource Record Signatures (RRSIG) and authenticated denial of existence using Next-Secure (NSEC) and Hashed-NSEC records (NSEC3).

A Company Wants to Host a Publicly Available Server That