NETWORK LAYER
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Physical
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Session
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Application
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Presentation
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Detailed explanation-1: -The application layer concerns the networking processes at the application level. This layer interacts directly with end-users to provide support for email, network data sharing, file transfers, and directory services, among other distributed information services.
Detailed explanation-2: -EXPLANATION: In OSI reference model: Physical, Datalink, Network layer are hop to hop layers. While Transport, session, presentation, application layers are end to end or host to host layers.
Detailed explanation-3: -Layer 4 (Transport): This layer coordinates data transfer between system and hosts, including error-checking and data recovery. Layer 3 (Network): This layer determines how data is sent to the receiving device. It’s responsible for packet forwarding, routing, and addressing.