Cisco 648-385 Exam

Which three statements correctly describe switching? (Choose three.)

  • A. A Layer 2 switch operates up to the data link layer of the OSI network model.
  • B. A Layer 3 switch operates up to the transport layer of the OSI network model.
  • C. A dual-layer switch operates at the application layer of the OSI network model.
  • D. A multilayer switch operates at all layers of the OSI network model.
  • E. A Layer 2 switch operates up to the physical layer of the OSI network model.
Answer: Option A. B. E.
Explanation: 

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