What is a subnet? MCQ with Answer and Explanation

What is a subnet?

A. A type of router

B. A physical network segment

C. A logical subdivision of an IP network

D. A VLAN

Answer: Option C

Subnetting divides a large network into smaller logical subnetworks.

This question belongs to: Computer Computer Networking

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Question #1 Report Error

What is the main difference between a hub and a switch?

A. Hub works at layer 3; switch at layer 2

B. Hub forwards data based on IP, switch based on MAC

C. Hub broadcasts to all ports; switch forwards to specific port based on MAC

D. Hub is intelligent; switch is not

Correct Answer: Option C

Explanation:
A hub sends data to all ports, while a switch learns MAC addresses and sends only to the destination port.

This question belongs to: Computer Computer Networking

Question #2 Report Error

Which protocol works automatically to resolve local IP addresses to physical hardware addresses on an Ethernet network segment?

A. ARP (Address Resolution Protocol)

B. DNS

C. DHCP

D. NAT

Correct Answer: Option A

Explanation:
ARP converts logical IP targets into corresponding physical MAC addresses within a local data link layer segment.

This question belongs to: Computer Computer Networking

Question #3 Report Error

Which of the following is a characteristic of a hub?

A. Forwards data based on MAC addresses

B. Works at layer 2

C. Creates separate collision domains

D. Broadcasts data to all ports

Correct Answer: Option D

Explanation:
A hub broadcasts incoming traffic to all other ports.

This question belongs to: Computer Computer Networking