Which of the following is TRUE regarding Transmission Control Protocol (TCP) and User Datagram Protocol (UDP)?

Question

Options

• ATCP is connection-oriented, UDP is not.
• BUDP provides for Error Correction, TCP does not.
• CUDP is useful for longer messages, rather than TCP.
• DTCP does not guarantee delivery of data, while UDP does guarantee data delivery.

• A
  90% (45)
• B
  6% (3)
• C
  2% (1)
• D
  2% (1)

Explanation

TCP is connection-oriented, meaning it establishes a reliable connection via a three-way handshake (SYN, SYN-ACK, ACK) before data is transmitted, and guarantees delivery, ordering, and error checking. UDP is connectionless - it sends datagrams without establishing a session, providing no guarantee of delivery or ordering. This makes UDP faster but less reliable, suitable for real-time applications like streaming or DNS. Option B is wrong because TCP provides error correction, not UDP. Option C is wrong because TCP (with its overhead) is better suited for longer, reliable transfers. Option D reverses the truth - TCP guarantees delivery, UDP does not.

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