Which of the following describes a DNS server?

The correct answer is A. Translates an IP address to a name. DNS (Domain Name System) servers perform name resolution - translating human-readable hostnames (e.g., www.example.com) to IP addresses, and optionally IP addresses back to names (reverse DNS). A proxy server caches web pages (B), a DHCP server assigns IP addresses (C), and…

Networking concepts

Question

Options

ATranslates an IP address to a name
BCaches commonly viewed web pages
CAssigns IP addresses to network devices
DProvides port security for a network

How the community answered

(28 responses)

A
89% (25)
B
7% (2)
C
4% (1)

Explanation

DNS (Domain Name System) servers perform name resolution - translating human-readable hostnames (e.g., www.example.com) to IP addresses, and optionally IP addresses back to names (reverse DNS). A proxy server caches web pages (B), a DHCP server assigns IP addresses (C), and port security is a switch-level feature - not a DNS function (D). The core role of DNS is hostname-to-IP (and IP-to-hostname) translation.

Topics

#DNS#name resolution#network services#IP addressing

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