[Solved] What does a subnet mask do in a computer network? — Ans: It divides the IP address into network and host parts | Computer Networks

Computer Networks - IP Addressing

What does a subnet mask do in a computer network?

AIt assigns IP addresses automatically

BIt divides the IP address into network and host parts

CIt encrypts data packets for security

DIt increases the speed of the internet connection

Step-by-Step Solution

Solution:

Step 1: Understand the role of subnet mask
A subnet mask helps separate the network portion and the host portion of an IP address.
Step 2: Identify the function in networking
This division allows devices to know which part of the address identifies the network and which part identifies the device within that network.
Final Answer:
It divides the IP address into network and host parts -> Option B
Quick Check:
Subnet mask function = Divide IP address [OK]

Quick Trick: Subnet mask splits IP into network and host parts [OK]

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