Oracle Cloud Infrastructure 2019 Developer Associate — Question 119

Which DNS resource record type is used to point a host name to an IPv4 address?

Answer options

• A. ALIAS
• B. A
• C. CNAME
• D. AAAA

Correct answer: B

Explanation

The correct answer is B, as the 'A' record specifically maps a domain name to an IPv4 address. Option A, ALIAS, is used for different purposes, while CNAME records (Option C) create aliases for domain names and do not directly point to an IP address. Option D, AAAA, is intended for mapping domain names to IPv6 addresses, not IPv4.