COMPUTER FUNDAMENTALS

COMPUTER NETWORKS AND COMMUNICATIONS

NETWORK TOPOLOGIES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Device that causes broadcasting and collision domains is:
A
Hub
B
Switch
C
Router
D
Repeater
Explanation: 

Detailed explanation-1: -Switches are multi-port bridges and are used to break up collision domains. Hubs are weaker than switches as hubs pass all traffic to all devices. Switches create broadcast domains due to the fact that all ports receive all broadcast transmissions. VLANs and routers are used to break up broadcast domains.

Detailed explanation-2: -All nodes/devices that share an Ethernet or fast Ethernet LAN using the CSMA/CD rules are part of the same collision domain or, in other words, all the nodes/devices that are connected to a hub are part of the same collision domain.

Detailed explanation-3: -Collision Domain A collision occurs when two devices send a packet at the same time on the shared network segment. The packets collide and both devices must send the packets again, which reduces network efficiency. Collisions are often in a hub environment because each port on a hub is in the same collision domain.

Detailed explanation-4: -Hubs pass all traffic. Devices connected to a hub are in a single collision domain and a single broadcast domain. Switches segment unicast traffic and pass broadcast traffic.

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