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GCIA · Question #178

Choose the proper transport protocol and port number used for Domain Name System. You should be concerned only with DNS lookups.

The correct answer is B. udp, port 53. See the full explanation below for the reasoning.

Question

Choose the proper transport protocol and port number used for Domain Name System. You should be concerned only with DNS lookups.

Options

  • Atcp, port 53
  • Budp, port 53
  • Ctcp, port 67
  • Dudp, port 67

How the community answered

(34 responses)
  • A
    6% (2)
  • B
    79% (27)
  • C
    12% (4)
  • D
    3% (1)

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