Free IT Networking Fundamentals & Infrastructure Questions and Answers

Question 1

What device is used to connect multiple devices on a local network?

Accepted Answer

Switch

Answer

Router

Answer

Modem

Answer

Repeater

Question 2

Which protocol is responsible for assigning IP addresses automatically?

Accepted Answer

DHCP

Answer

DNS

Answer

FTP

Answer

HTTP

Question 3

What is the primary function of a router?

Accepted Answer

Route traffic between networks

Answer

Boost signal strength

Answer

Connect devices in a LAN

Answer

Filter data by MAC address

Question 4

Which layer of the OSI model handles error detection and correction?

Accepted Answer

Data Link

Answer

Transport

Answer

Network

Answer

Session

Question 5

What is the purpose of a firewall in networking?

Accepted Answer

Filters unauthorized access

Answer

Assigns IP addresses

Answer

Boosts internet speed

Answer

Hosts websites

Question 6

Which cable type is commonly used in Ethernet networks?

Accepted Answer

Twisted pair

Answer

Coaxial

Answer

Fiber optic

Answer

Parallel

Question 7

Which command is used to test network connectivity?

Accepted Answer

ping

Answer

tracert

Answer

nslookup

Answer

ipconfig

Question 8

What is an IP address used for?

Accepted Answer

Identify a device on a network

Answer

Identify hardware

Answer

Speed up connections

Answer

Prevent access

Question 9

Which protocol translates domain names to IP addresses?

Accepted Answer

DNS

Answer

FTP

Answer

SMTP

Answer

Telnet