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N10-005 · Question #636

Which of the following ports does DHCP use? (Select TWO).

The correct answer is C. 67 D. 68. DHCP (Dynamic Host Configuration Protocol) uses two UDP ports: port 67 for the DHCP server (receives client requests) and port 68 for the DHCP client (receives server responses). This two-port design is necessary because clients don't yet have an IP address when initiating…

Networking concepts

Question

Which of the following ports does DHCP use? (Select TWO).

Options

  • A22
  • B23
  • C67
  • D68
  • E69

How the community answered

(28 responses)
  • B
    4% (1)
  • C
    89% (25)
  • E
    7% (2)

Explanation

DHCP (Dynamic Host Configuration Protocol) uses two UDP ports: port 67 for the DHCP server (receives client requests) and port 68 for the DHCP client (receives server responses). This two-port design is necessary because clients don't yet have an IP address when initiating contact. Port 22 is SSH, port 23 is Telnet, and port 69 is TFTP.

Topics

#DHCP#port 67#port 68#protocol ports

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