Free MTCNA Exam Braindumps (page: 13)

Page 12 of 55

Where is a hub specified in the OSI model?

  1. Session layer
  2. Physical layer
  3. Data Link layer
  4. Application layer

Answer(s): B



Which command is used to upgrade an IOS on a Cisco router?

  1. copy tftp run
  2. copy tftp start
  3. config net
  4. copy tftp flash

Answer(s): D



MAC layer by OSI model is also known as

  1. Layer 2
  2. Layer 1
  3. Layer 6
  4. Layer 7
  5. Layer 3

Answer(s): A



How many usable IP addresses are there in a 20bit subnet?

  1. 4096
  2. 4094
  3. 2046
  4. 2048
  5. 2047

Answer(s): B






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