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Zorluk: ZorConnection-Oriented vs Connectionless Protocols

A network engineer is optimizing transport layer communications for an industrial control system. The environment requires two distinct traffic flows: real-time telemetry sensor updates sent every 20 milliseconds where low latency is critical and occasional dropped data points are acceptable, and system firmware configuration updates where every packet must be acknowledged, strictly ordered, and delivered without loss. During peak utilization, network captures show excessive latency on telemetry feeds due to windowing mechanisms and retransmissions. Which of the following transport layer protocol recommendations best resolves the performance issues while meeting all delivery requirements?

  1. Migrate real-time telemetry traffic to UDP to eliminate connection-establishment delay and retransmission overhead, while maintaining TCP for firmware configuration updates to ensure guaranteed, connection-oriented delivery.Cevap
  2. B
    Migrate both real-time telemetry and firmware configuration streams to UDP to minimize protocol header size and eliminate bandwidth overhead across congested links.
  3. C
    Encapsulate telemetry data into Layer 2 Ethernet frames using standard IP headers to enforce sequence numbering and flow control without transport layer overhead.
  4. D
    Reassign firmware configuration transport traffic to UDP port 53 to utilize standard transport layer reliability mechanisms designed for core infrastructure updates.

Cevap

Migrate real-time telemetry traffic to UDP to eliminate connection-establishment delay and retransmission overhead, while maintaining TCP for firmware configuration updates to ensure guaranteed, connection-oriented delivery.
The correct answer properly distinguishes between connection-oriented and connectionless transport protocol features. UDP is connectionless and unacknowledged, eliminating delay-inducing retransmissions for real-time telemetry. TCP is connection-oriented, utilizing sequence numbers and acknowledgments to ensure complete, ordered delivery for critical firmware updates.

Adım Adım Çözüm

1
Analyze the operational requirements of the telemetry stream.
Telemetry requires low latency, frequent transmission (every 20 ms), and tolerates minor loss. Retransmissions and flow control (TCP overhead) cause unwanted lag.
Connectionless protocols like UDP operate without handshakes, acknowledgments, or windowing, making them ideal for real-time applications.
2
Analyze the operational requirements of the firmware configuration stream.
Firmware updates require 100% accurate data delivery, strict packet ordering, and error recovery.
Connection-oriented protocols like TCP provide formal handshakes, sequencing, error checking, and retransmission of lost segments.
3
Evaluate protocol assignment choices.
Assigning UDP to telemetry and TCP to firmware updates fulfills both traffic requirements optimally.
Matching protocol characteristics (TCP vs. UDP) to application requirements ensures performance without sacrificing system integrity.

Anahtar Kavram

Connection-Oriented (TCP) vs Connectionless (UDP) Protocol Selection
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Connection-Oriented vs Connectionless Protocols

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