COMPUTER FUNDAMENTALS

COMPUTER NETWORKS AND COMMUNICATIONS

NETWORK TOPOLOGIES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What does a Hub do?
A
Once received sends data packets to all workstations
B
Sends data packets only to intended recipient using MAC address
C
Sends data packets through the internet
D
Reduces network traffic
Explanation: 

Detailed explanation-1: -A hub receives data and then sends it in full to all connected devices (hosts). All ports of the hub operate at the same speed and are located in a collision domain (which includes all connected network devices).

Detailed explanation-2: -A hub transmits all data that it receives on one port to all other ports. When looking at the features of various network devices, it’s valuable to know the difference between unicast, broadcast, and multicast traffic, as follows: Unicast traffic is sent from one device and addressed to one other device.

Detailed explanation-3: -Hubs connect multiple computer networking devices together. A hub also acts as a repeater in that it amplifies signals that deteriorate after traveling long distances over connecting cables. A hub is the simplest in the family of network connecting devices because it connects LAN components with identical protocols.

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