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SSCP · Question #1210

Of the protocols list, which one is connection oriented?

The correct answer is D. TCP. TCP is the only connection-oriented protocol among the listed options, establishing a reliable communication session before transmitting data.

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

Question

Of the protocols list, which one is connection oriented?

Options

  • AIP
  • BUDP
  • CDNS
  • DTCP
  • EAll protocols listed are connection oriented

How the community answered

(14 responses)
  • C
    7% (1)
  • D
    93% (13)

Why each option

TCP is the only connection-oriented protocol among the listed options, establishing a reliable communication session before transmitting data.

AIP

IP (Internet Protocol) is a connectionless protocol, primarily responsible for addressing and routing packets without guaranteeing delivery or order.

BUDP

UDP (User Datagram Protocol) is a connectionless protocol that offers a faster but unreliable service without establishing a connection or guaranteeing delivery.

CDNS

DNS (Domain Name System) primarily uses UDP for most queries but can use TCP for zone transfers; however, it is not inherently a connection-oriented data transfer protocol itself for typical queries.

DTCPCorrect

The Transmission Control Protocol (TCP) is a connection-oriented protocol that establishes a reliable, ordered, and error-checked connection between two endpoints before transmitting data. It ensures data delivery through mechanisms like sequence numbers, acknowledgments, and retransmissions.

EAll protocols listed are connection oriented

This is incorrect as IP and UDP are distinctly connectionless protocols.

Concept tested: Connection-oriented vs. connectionless protocols

Source: https://learn.microsoft.com/en-us/windows/win32/winsock/tcp-ip-protocols-and-ports

Topics

#Network Protocols#TCP/IP Model#Connection-oriented#Transport Layer

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