What does an A record map?

What does an A record map?

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

Answer: (A)

This tests how DNS translates a domain name into a network address. An A record maps a domain name to an IPv4 address, so when you look up that name, your system learns the specific IPv4 address to connect to. If a domain has multiple servers, there can be several A records for the same name, providing options for load distribution. Other DNS types serve different purposes: a CNAME creates an alias to another domain name (not an IP address), a TXT record stores text data (often for validation or policy), and an MX record designates the mail server for the domain and its priority. For IPv6 addresses, you’d use an AAAA record instead.

This tests how DNS translates a domain name into a network address. An A record maps a domain name to an IPv4 address, so when you look up that name, your system learns the specific IPv4 address to connect to. If a domain has multiple servers, there can be several A records for the same name, providing options for load distribution.

Other DNS types serve different purposes: a CNAME creates an alias to another domain name (not an IP address), a TXT record stores text data (often for validation or policy), and an MX record designates the mail server for the domain and its priority. For IPv6 addresses, you’d use an AAAA record instead.