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Difficulty: EasyConnection-Oriented vs Connectionless Protocols

A network technician is configuring an automated event notification system to send non-critical status alerts across the local network. The system requires a low-overhead transport layer protocol that transmits datagrams immediately without establishing a prior session or requiring packet delivery acknowledgments. Which protocol best fulfills these requirements?

  1. User Datagram Protocol (UDP)Answer
  2. B
    Transmission Control Protocol (TCP)
  3. C
    Internet Protocol (IP)
  4. D
    Secure Shell (SSH)

Answer

User Datagram Protocol (UDP) is the correct choice because it is a connectionless Transport layer protocol with minimal overhead that sends datagrams without establishing an initial session or expecting delivery acknowledgments.
User Datagram Protocol (UDP) is a connectionless Transport layer protocol. It transmits data without initiating a connection handshake, maintaining session state, or expecting reception acknowledgments, providing the lowest possible protocol overhead for non-critical notification alerts.

Step-by-Step Solution

1
Identify the OSI layer and operational requirements specified in the scenario.
The requirements demand a Transport layer (Layer 4) protocol that is connectionless (no prior session establishment), unacknowledged, and low-overhead.
Categorizing the parameters allows for filtering out incorrect OSI layers and protocol operational modes.
2
Compare transport layer protocol characteristics.
UDP operates connectionlessly without handshake overhead or delivery guarantees, whereas TCP requires a three-way handshake, sequence numbers, and acknowledgments.
UDP is specifically designed for scenarios where fast, low-overhead transmission is prioritized over guaranteed delivery.

Key Concept

Connection-Oriented vs Connectionless Transport Protocols
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Topics

Connection-Oriented vs Connectionless Protocols

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