Match each DNS record type to its corresponding function: Record Types: - A - AAAA - CNAME - PTR Functions: - Maps a hostname to an IPv4 address - Maps a hostname to an IPv6 address - Aliases one domain name to another - Maps an IP address to a hostname for reverse lookups

These four record types support distinct DNS functions. A and AAAA records provide forward mappings for IPv4 and IPv6 addresses, respectively. PTR records support reverse lookups from an address to a name. CNAME records provide aliases that refer clients to another DNS name. The lab demonstrates all but AAAA directly: it creates IPv4 hosts, associated PTR records, and a CNAME alias. **Key takeaway:** Identify a record by the direction and kind of mapping it stores.\n\n**Glossary:** **Forward lookup**: Name-based query for DNS data. **Reverse lookup**: Address-based query for a name. **Alias**: An alternate name for another DNS name.