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Zorluk: OrtaOSI Model Layers and Functions

A software developer and a network technician are configuring a bulk database migration utility across an enterprise link. The application establishes communication channels between two servers, maintains dialog control between the endpoints, and places synchronization checkpoints within the data stream so that interrupted file transfers can resume from the last saved state without starting over. Which layer of the OSI model is directly responsible for managing these dialog control and checkpoint synchronization functions?

  1. A
    Transport Layer
  2. Session LayerCevap
  3. C
    Presentation Layer
  4. D
    Network Layer

Cevap

Session Layer
The Session Layer (Layer 5) of the OSI model is dedicated to establishing, maintaining, synchronizing, and terminating communication sessions between applications. Key duties include dialog control (determining half-duplex or full-duplex communication modes) and inserting checkpoints into data streams to facilitate recovery from communication failures.

Adım Adım Çözüm

1
Analyze the core requirements in the scenario
Identified session management, dialog control, and checkpoint insertion as the key functional requirements.
The question asks to identify which OSI layer handles these specific services.
2
Map requirements to OSI layer responsibilities
Layer 5 (Session Layer) explicitly defines dialog control (managing which side transmits and when) and session synchronization (setting checkpoints for failure recovery).
Other layers handle syntax translation (Presentation), transport reliability (Transport), or packet routing (Network).

Anahtar Kavram

OSI Model Session Layer (Layer 5) Functions
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OSI Model Layers and Functions

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