What is a “subnet” in networking?
a) A smaller network within a larger network
b) A tool for encrypting data
c) A wireless network
d) A hardware component for routing
Answer:
a) A smaller network within a larger network
Explanation:
A subnet, or subnetwork, is a smaller network that is part of a larger network. Subnets are used to segment networks into smaller groups of devices, making network management more efficient and improving performance.
Subnets allow network administrators to organize devices based on their physical location or function. This segmentation reduces network congestion, improves security, and makes troubleshooting easier.
Subnets are identified using a subnet mask, which determines how many devices can be in a specific subnet. This is commonly used in large enterprise networks or complex systems with multiple departments.