4.0 Network Services and Security

DNS Record Types Practice Questions

New in CCNA v2.0

Diagnosing A, AAAA, CNAME, MX, NS, and PTR records for host, web, and mail access by name.

Author-reviewed by LabFabric · 25 September 2026 · Report a content issue

One solved question, so you can see how these are marked

Which DNS record type maps a hostname to an IPv6 address?

AAAA

An A record returns an IPv4 address and an AAAA record returns an IPv6 address. PTR is used for reverse lookups and NS names the zone's name servers.

Every question in the set below is marked like this. The answers stay hidden until you pick one.

Find related practice in the CCNA path