What DNS record maps a domain to an IPv4 address?

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Multiple Choice

What DNS record maps a domain to an IPv4 address?

Explanation:
An A record maps a domain name to an IPv4 address. This is how a browser learns where to connect when you enter a domain, by resolving the domain to its numeric IPv4 address through DNS. If a site uses IPv6, the corresponding record is AAAA, not A. The other options serve different purposes: PTR is used for reverse DNS (mapping an IP back to a domain), MX designates the mail server for a domain, and TXT stores arbitrary text data such as SPF or DKIM records.

An A record maps a domain name to an IPv4 address. This is how a browser learns where to connect when you enter a domain, by resolving the domain to its numeric IPv4 address through DNS. If a site uses IPv6, the corresponding record is AAAA, not A. The other options serve different purposes: PTR is used for reverse DNS (mapping an IP back to a domain), MX designates the mail server for a domain, and TXT stores arbitrary text data such as SPF or DKIM records.

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