Zones maintain domain name information in which record types?

Zones maintain domain name information primarily in Resource Records (RRs), which serve as the fundamental building blocks for DNS (Domain Name System) data. Each Resource Record contains specific information about a domain, such as its associated IP addresses, mail exchange servers, or name servers. This comprehensive structure allows for a variety of record types – including A, MX, and NS records – to exist within a zone.

When discussing domain name management, various record types play distinct roles. A records map a domain name to an IP address, MX records indicate mail servers for a domain, and NS records define which name servers are authoritative for the domain. While these other record types are essential in the DNS ecosystem, they are types of Resource Records. Therefore, it is accurate to state that zones maintain domain name information through the overarching category of Resource Records, which encompasses all these different types, hence making RRs the correct choice in this context.