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TT0-201 · Question #12

Which of the following best describes differences between DiffServ and 802.1p?

The correct answer is A. DiffServ uses Layer 3 devices for QoS, whereas 802.1p uses Layer 2 devices for QoS. See the full explanation below for the reasoning.

Question

Which of the following best describes differences between DiffServ and 802.1p?

Options

  • ADiffServ uses Layer 3 devices for QoS, whereas 802.1p uses Layer 2 devices for QoS.
  • BDiffServ requires an Application Layer Gateway (ALG), whereas 802.1p requires a Layer 3 switch.
  • CDiffServ uses Layer 2 devices for QoS, whereas 802.1p uses Layer 3 devices for QoS.
  • DMicrosoft's Packet Scheduler uses DiffServ at Layer 7 of the OSI, whereas Cisco products use

How the community answered

(45 responses)
  • A
    78% (35)
  • B
    2% (1)
  • C
    7% (3)
  • D
    13% (6)

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