Which of the following devices reads the destination's MAC address from each incoming data packet and forwards the data packet to its destination?

Question

Options

• AHub
• BRouter
• CBrouer
• DSwitch

• A
  7% (4)
• B
  4% (2)
• C
  15% (8)
• D
  75% (41)

Explanation

A switch operates at Layer 2 (Data Link) of the OSI model and maintains a MAC address table, using it to read each frame's destination MAC address and forward it only to the specific port where that device lives - making traffic efficient and targeted.

• A (Hub): A hub is a "dumb" device that simply broadcasts every incoming signal out all ports, with no awareness of MAC addresses at all.
• B (Router): Routers operate at Layer 3 (Network layer) and forward traffic based on IP addresses, not MAC addresses.
• C (Brouer): Not a real networking device - this is a distractor, likely a misspelling of "bridge" or "router."

Memory tip: Think of a switch as a smart mail sorter - it reads the exact name (MAC address) on each envelope and delivers it only to the right mailbox, whereas a hub just dumps every piece of mail in every box.

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