CompTIA Network+ Practice Test

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Study for the CompTIA Network+ Exam. Enhance your skills with flashcards and multiple choice questions, each with explanations. Prepare effectively for your certification exam!

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What type of resource record is used for IPv4 address resolution?

AAAA
CNAME
A
MX

The correct answer is: A

The resource record used for IPv4 address resolution is an "A" record. This type of DNS (Domain Name System) record maps a domain name to its corresponding IPv4 address, allowing for the translation of human-readable domain names into numeric IP addresses that computers use to identify each other on the network. When a user enters a domain name in their web browser, a DNS query is made, which retrieves the A record for that domain. The record contains the IPv4 address of the server where the website is hosted. This is essential for facilitating the connection between a user's device and the desired web server. Other options serve different purposes: AAAA records are specifically for IPv6 address resolution, CNAME records are used for aliasing one domain name to another, and MX records are utilized for specifying mail exchange servers for email delivery. Each of these has its own specific role in the DNS ecosystem, but for IPv4 address resolution, the A record is the correct type to use.