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Zorluk: KolayTCP vs UDP Comparison and Protocols

A network administrator is selecting a transport layer protocol for a real-time voice streaming service where low transmission latency is required and dropped packets should not be retransmitted. Which characteristic of User Datagram Protocol (UDP) makes it better suited than Transmission Control Protocol (TCP) for this application?

  1. UDP operates with a lightweight fixed 8-byte header and no connection setup overhead.Cevap
  2. B
    UDP ensures zero packet loss by utilizing dynamic windowing and automatic sequence number tracking.
  3. C
    UDP incorporates a variable 20-to-60 byte header to dynamically alter transmission rates based on network congestion.
  4. D
    UDP establishes low-latency virtual circuits prior to data transfer by performing a abbreviated two-way handshake.

Cevap

UDP operates with a lightweight fixed 8-byte header and no connection setup overhead.
The choice highlighting UDP's lightweight fixed 8-byte header and lack of connection setup overhead is correct because UDP is a stateless, connectionless protocol designed for low-latency delivery where packet retransmission is undesirable.

Adım Adım Çözüm

1
Analyze application requirements
Real-time voice traffic requires minimal delay and does not benefit from retransmitting delayed packets.
Retransmitted voice packets arrive too late to be useful in a live conversation.
2
Evaluate transport layer protocols
UDP is connectionless and has a minimal 8-byte header size compared to TCP's 20-byte minimum header and mandatory 3-way handshake.
UDP avoids the latency overhead associated with session establishment, sequencing, and flow control.

Anahtar Kavram

UDP vs TCP Header and Connection Mechanics
Tahmini Süre:45s
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