Cisco 100-105 Exam

How does a Layer 2 switch differ from a hub?

  • A. A switch tracks MAC addresses of directly-connected devices.
  • B. A switch always induces latency into the frame transfer time.
  • C. A switch operates at a lower, more efficient layer of the OSI model.
  • D. A switch decreases the number of collision domains.
Answer: Option A.
Explanation: 

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