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200-301 · Question #1585

What is the difference between the TCP and UDP protocols?

The correct answer is B. TCP has a 20-byte minimal header size, and UDP has an 8-byte header size.. TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are both transport layer protocols. TCP has a minimum header size of 20 bytes, which includes fields for sequencing, acknowledgments, and flow control, ensuring reliable communication. UDP has a smaller 8-byte h

Submitted by hassan_iq· Mar 5, 2026

Question

What is the difference between the TCP and UDP protocols?

Options

  • ATCP has an inherent order for packet assembly, and UDP reassembles packets in a specific
  • BTCP has a 20-byte minimal header size, and UDP has an 8-byte header size.
  • CTCP requires five packets to set up a connection, and UDP requires only three packets.
  • DTCP uses only a checksum, and UDP has an acknowledgment mechanism.

How the community answered

(34 responses)
  • A
    3% (1)
  • B
    91% (31)
  • C
    6% (2)

Explanation

TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are both transport layer protocols. TCP has a minimum header size of 20 bytes, which includes fields for sequencing, acknowledgments, and flow control, ensuring reliable communication. UDP has a smaller 8-byte header, making it more efficient for time-sensitive applications like streaming and VoIP, but it does not guarantee delivery or ordering.

Topics

#TCP#UDP#Protocol headers#Transport layer protocols

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