What types of records do zones maintain domain name information in?

Zones maintain domain name information in resource records. Resource records are a fundamental part of the Domain Name System (DNS) and contain information associated with a domain, including the mapping of domain names to IP addresses, mail exchange servers, and other critical data. Each type of record serves a specific purpose within the DNS, allowing for effective resolution of domain names.

Address records, for example, specifically refer to the A records that map a domain name to an IPv4 address. While they are essential for directing traffic, they do not encompass all the information a zone holds. Alias records, such as CNAME records, are used to create an alias for the true domain name but are just one type of resource record. Network records is a more general term and does not accurately describe the structured format that resource records provide in managing domain names.

Understanding that zones utilize resource records to store detailed and structured domain name information helps clarify the broader aspect of how the DNS operates and its role in internet functionality.