Prompt

Answer these questions about DNS. Make sure you enter the record type and not the description of the record type.

Walk-Through

This challenge will give you experience conducting online research in order to answer specific technical questions involving the Domain Name System (DNS) protocol.

A quick online search of each question should provide several sources with the answer. Be careful to make sure that the answer that you obtain can be verified using an authoritative source. If you search for “DNS protocol specification”, you should find that the Internet Engineering Task Force (IETF) publishes the specification for DNS. You should use IETF resources as the authoritative source for answers.

Knowing how to read and understand a specification document is important because many technologies across all industries use these types of documents to keep implementation uniform.

Questions

1. What type of DNS record holds the DNSSEC public signing key?

DNSSEC is described in RFC 4034. The information related to the record can be found in Section 2.

2. What type of DNS record is used to map hostnames to IPv6 addresses?

The DNS Extension to Support IPv6 is described in RFC 3596. The information related to the record can be found in section 2.

3. What type of DNS record is used to delegate a DNS zone?