An early networking device that functioned at layer 1 of the OSI model and added devices to a single segment is known as which of the following choices?
A)switch
B)router
C)firewall
D)hub

Question

Quizplus · Accepted Answer

A hub is a networking device that operates at the physical layer (layer 1) of the OSI model. Its primary function is to connect devices in a single network segment, allowing them to communicate with each other. However, hubs are inefficient compared to switches because they send all network traffic to all connected devices, causing network congestion, collisions, and bandwidth waste.

An Early Networking Device That Functioned at Layer 1 of the OSI