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Jason Dion's Network+ Course Practice Test

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Which DNS record maps a domain name to an IPv4 address?
Correct Answer:
A
Explanation:
A records are used to map a domain name to an IPv4 address. This is the standard way a hostname is resolved for IPv4 networks, linking something like a domain to a 32-bit address such as 198.51.100.5. The other record types serve different purposes: AAAA records map a domain to an IPv6 address, CNAME records create an alias from one name to another domain name, and MX records specify which mail server handles email for the domain. So when the goal is to find the IPv4 address associated with a domain, the A record is the one that provides that mapping.

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