A

Admin • 670.22K Points
Coach

Q. Which of the following is an application layer service ?

  • (A) Remote log-in
  • (B) File transfer and access
  • (C) Mail service
  • (D) All of the above
  • Correct Answer - Option(D)
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  • Filed under category Computer
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Explanation by: Admin

All of these services operate at the Application Layer of the OSI model, providing direct support to user applications:

  • Remote log-in: Allows users to access another computer remotely.
  • File transfer and access: Enables the transfer and access of files over a network.
  • Mail service: Provides electronic mail functionality.

Correct Answer: (D) All of the above

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