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ADR-001 · Question #66

Which of the following ports and protocol types must be opened on a host with a host-based firewall to allow incoming SFTP connections?

The correct answer is D. 22/TCP. See the full explanation below for the reasoning.

Question

Which of the following ports and protocol types must be opened on a host with a host-based firewall to allow incoming SFTP connections?

Options

  • A21/UDP
  • B21/TCP
  • C22/UDP
  • D22/TCP

How the community answered

(52 responses)
  • A
    4% (2)
  • B
    13% (7)
  • C
    10% (5)
  • D
    73% (38)

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