nerdexam
(ISC)2

SSCP · Question #835

Which of the following is an example of a connectionless communication protocol?

The correct answer is A. UDP. UDP (User Datagram Protocol) is connectionless because it sends datagrams directly to the destination without first establishing a formal connection, performing handshaking, or guaranteeing delivery, order, or error checking. This makes it faster but less reliable than…

Submitted by marco_it· Apr 18, 2026Network and Communications Security

Question

Which of the following is an example of a connectionless communication protocol?

Options

  • AUDP
  • BX.25
  • CPacket switching
  • DTCP

How the community answered

(51 responses)
  • A
    88% (45)
  • B
    8% (4)
  • C
    2% (1)
  • D
    2% (1)

Explanation

UDP (User Datagram Protocol) is connectionless because it sends datagrams directly to the destination without first establishing a formal connection, performing handshaking, or guaranteeing delivery, order, or error checking. This makes it faster but less reliable than connection-oriented protocols. TCP is connection-oriented, requiring a three-way handshake before data transfer. X.25 is a connection-oriented packet-switched protocol that establishes virtual circuits. Packet switching is a networking technology, not a specific protocol, and many packet-switched protocols are connection-oriented.

Topics

#Connectionless protocols#UDP#Networking fundamentals#Transport layer

Community Discussion

No community discussion yet for this question.

Full SSCP Practice