Layer 2 by Layer 2

October 4, 2011



Which of these network technologies operate at OSI Layer 2 and forward traffic based on the MAC address of the destination station?

A) Switch

B) Router

C) Hub

D) VPN Concentrator

E) Who needs layers? Just smash all of it together.


The answer: A) Switch

A network switch uses the hardware address to determine where traffic is forwarded. Because of this OSI layer 2 operation, switches are often called multi-port bridges.

Want to know more? Watch “Network Technologies.”

The fundamental operation of the network uses many different technologies to ensure that traffic will flow properly between devices. In this video module, you’ll learn about status indicators, duplex settings, the difference between workgroups and domains, and much more.

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Category: CompTIA A+ Pop Quizzes

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