Free CompTIA JK0-023 Exam Braindumps (page: 34)

Which of the following uses a 128-bit addressing scheme?

  1. MAC
  2. DHCP
  3. IPv4
  4. IPv6

Answer(s): D



Which of the following has the LEAST amount of collisions in a domain?

  1. Bridge
  2. Hub
  3. Repeater
  4. Switch

Answer(s): D



Which of the following TCP/IP and OSI model layers retransmits a TCP packet if it is not received successfully at its destination?

  1. The transport OSI model layer and the transport TCP/IP model layer.
  2. The transport OSI model layer and the Internet TCP/IP model layer.
  3. The network OSI model layer and the transport TCP/IP model layer.
  4. The network OSI model layer and the Internet TCP/IP model layer.

Answer(s): A



Which of the following ports would have to be allowed through a firewall for NTP to pass on its default port?

  1. 123
  2. 143
  3. 153
  4. 163

Answer(s): A






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