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Network Layer Quiz

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Questions and Answers

Which layer of the OSI model is the network layer?

Layer 1
Layer 2
Layer 4
Layer 3 (correct)

What is the main responsibility of the network layer?

Connection-oriented communication
Data link layer communication
Packet forwarding (correct)
Host addressing

Which layer of the OSI model does the network layer respond to service requests from?

Layer 3
Layer 2 (correct)
Layer 1
Layer 4

Which type of communication does the Internet Protocol (IP) use?

<p>Connectionless communication (A)</p> Signup and view all the answers

What does every host in a network need to have?

<p>A unique address (C)</p> Signup and view all the answers

Flashcards

Network layer

Layer 3 of the OSI model responsible for routing and managing packets across a network.

Packet forwarding

The process of transferring data packets from one network device to another along the optimal path.

Network layer's responsibility to Layer 2

The Data Link Layer (Layer 2) of the OSI model handles communication between devices on the same network. The Network Layer (Layer 3) receives service requests from this layer to manage network-wide communication.

Connectionless communication

A communication method where devices send data without establishing an active connection beforehand. This creates a faster, more efficient communication but might result in lost data.

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Unique address for each host

Every device on a network requires a unique identifier called an IP address to be recognized and communicate effectively.

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Study Notes

OSI Model Overview

The network layer is the third layer of the OSI model.

Network Layer Responsibilities

The main responsibility of the network layer is to provide routing and congestion control.

Network Layer Interactions

The network layer responds to service requests from the transport layer (Layer 4).

Internet Protocol (IP) Characteristics

IP uses connectionless communication.

Host Requirements

Every host in a network needs to have a unique IP address.

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