Selecting “Create associated PTR record” requests creation of reverse DNS data for a host record.

When adding each host record, the lab selects **Create associated PTR record**. A PTR record supports reverse lookup by mapping an IP address back to a DNS name. The associated record is placed in the corresponding reverse lookup zone when that zone is available and configured. This does not make the address reachable; it creates DNS data for reverse name resolution. **Key takeaway:** The associated PTR option creates reverse mapping data linked to the host’s IP address.\n\n**Glossary:** **PTR record**: A record used for address-to-name resolution. **Reverse zone**: The DNS zone containing reverse mappings. **Host record**: A forward DNS record for a host name.