A Record — Cisco CCNA (200-301) Practice Questions

An A record is a DNS resource record type that maps a hostname to an IPv4 address, forming the most fundamental lookup in the DNS system. On the CCNA 200-301 exam, understanding A records is part of broader DNS knowledge, including how clients query DNS servers and how responses direct traffic to the correct IP address. Candidates should also be aware of the AAAA record counterpart for IPv6 and understand how A record lookups fit into the end-to-end name resolution process.

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