CNAME records are primarily used to?

• A. A record
• B. CNAME Record
• C. TXT Record
• D. MX Record

Answer: (B)

A CNAME record is used to create an alias from one hostname to another. Rather than mapping a name directly to an IP address, it points to a canonical name, and the resolver then follows that name to obtain the IP from the canonical name’s A or AAAA records. This makes it easy to have multiple domain names land on the same service without duplicating IP addresses. For example, you can have a name like www.example.com alias another domain, so both resolve to the same endpoint. The other common record types serve different purposes: A records map a name to an IPv4 address, TXT records store arbitrary text data, and MX records specify which mail servers handle email for the domain. That’s why a CNAME record is the best answer here. (Note: CNAMEs aren’t typically used at the zone apex if you have other records for that name.)