Which of the following statements best describes a hub?

The correct answer is B. A device that receives and replicates data without layer-2 header inspection. A hub is a physical layer (Layer 1) networking device used to connect multiple Ethernet devices in a network. Unlike switches or routers, hubs do not inspect or process frame headers. Instead, they perform a simple task: Receive a signal (electrical or optical) on one port…

Network and Infrastructure Performance Management Integration

Question

Options

AA device used to connect cables with signal amplification.
BA device that receives and replicates data without layer-2 header inspection.
CA device that receives and forwards data based on the MAC destination address.
DA device that receives and forwards data based on the layer-3 destination address.

How the community answered

(25 responses)

A
16% (4)
B
76% (19)
C
4% (1)
D
4% (1)

Explanation

A hub is a physical layer (Layer 1) networking device used to connect multiple Ethernet devices in a network. Unlike switches or routers, hubs do not inspect or process frame headers. Instead, they perform a simple task: Receive a signal (electrical or optical) on one port Replicate that signal identically to all other ports This means the hub does not examine Layer 2 (MAC addresses) or Layer 3 (IP addresses) and does not perform intelligent forwarding. It merely broadcasts all incoming traffic to every other connected device, often resulting in high collision domains and poor efficiency.

Topics

#hub#network device#layer 2#signal replication

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