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Q61 (CDS-II/2026) Science & Technology › ICT, AI, Cybersecurity & Emerging Tech

Which one among the following protocols works at application layer in a TCP/IP protocol suit ?

Result
Your answer: —  ·  Correct: C

Explanation

In the TCP/IP protocol suite, protocols are organized into layers. The Application Layer is the topmost layer that provides services directly to user applications. TELNET (Teletype Network) is a classic application layer protocol used for remote terminal access, allowing a user on one computer to log into another computer on the same network.

  • IP (Internet Protocol) operates at the Internet Layer, responsible for addressing and routing packets.
  • TCP (Transmission Control Protocol) operates at the Transport Layer, ensuring reliable, connection-oriented data delivery.
  • Go-back-N is not a standalone protocol in the suite but a specific sliding window protocol mechanism used for error and flow control at the Data Link or Transport layers.
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SIMILAR QUESTIONS

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Which one of the following protocols is not an application layer of the TCP/IP model?

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