Which service provides a directory lookup for IP addresses and host names?

The correct answer is A. DNS. DNS (Domain Name System) is the internet's distributed directory service that resolves human-readable hostnames (e.g., www.example.com) to IP addresses and vice versa (reverse DNS). Choice A is correct. DHCP (B) dynamically assigns IP addresses to hosts but does not provide…

Network Fundamentals

Question

Options

ADNS
BDHCP
CSNMP
DNAT

How the community answered

(42 responses)

A
86% (36)
B
5% (2)
C
2% (1)
D
7% (3)

Explanation

DNS (Domain Name System) is the internet's distributed directory service that resolves human-readable hostnames (e.g., www.example.com) to IP addresses and vice versa (reverse DNS). Choice A is correct. DHCP (B) dynamically assigns IP addresses to hosts but does not provide hostname-to-IP lookup. SNMP (C) is a protocol for monitoring and managing network devices, not name resolution. NAT (D) translates private IP addresses to public IP addresses for routing purposes, which is unrelated to hostname lookups.

Topics

#DNS#Networking fundamentals#Hostname resolution#IP addressing

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