OSI Reference Model Overview

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What does OSI serve as in the context of network communication?

An encryption protocol

A data storage unit

A reference model (correct)

A hardware device

In the OSI model, what is the primary function of Layer 2 (Data Link Layer)?

Packet routing

Error detection and framing (correct)

Data encryption

IP address assignment

Which layer of the OSI model is responsible for establishing, maintaining, and terminating connections between systems?

Network Layer (Layer 3)

Physical Layer (Layer 1)

Session Layer (Layer 5) (correct)

Transport Layer (Layer 4)

What is one of the key purposes of the OSI reference model in network design?

Standardizing network communication protocols Signup and view all the answers

Which layer of the OSI model deals with routing, addressing, and traffic control across a network?

Network Layer (Layer 3) Signup and view all the answers

What is the primary purpose of the OSI model?

To provide a framework for manufacturers to create interoperable network devices and software Signup and view all the answers

Which of the following is NOT one of the seven layers of the OSI model?

Kernel Signup and view all the answers

How does the OSI model help manufacturers when creating network devices and software?

It allows manufacturers to create products that are compatible with each other Signup and view all the answers

What is the purpose of having multiple layers in the OSI model?

To allow for the development of specialized hardware and software components Signup and view all the answers

How does the OSI model help manufacturers describe their network products?

It provides a common language for describing network hardware and software Signup and view all the answers

What is the primary function of the MAC (Media Access Control) sublayer?

Interfaces with the physical layer and transmits or receives signals Signup and view all the answers

The data link layer is divided into how many sublayers?

2 Signup and view all the answers

What is the characteristic impedance of RG-59 cable?

75 ohms Signup and view all the answers

What is the characteristic impedance of RG-58 cable?

50 ohms Signup and view all the answers

Which sublayer of the data link layer does NOT directly interact with the physical layer?

Logical Link Control (LLC) sublayer Signup and view all the answers

Which type of cable is typically used for Cable TV applications?

RG-59 Signup and view all the answers

What does the abbreviation 'MAC' stand for in the context of the data link layer?

Media Access Control Signup and view all the answers

What is the purpose of a repeater in a network?

To amplify and regenerate weakened signals Signup and view all the answers

Which layer of the OSI model is directly below the data link layer?

Physical layer Signup and view all the answers

Which type of cable is typically used for Thin Ethernet networks?

RG-58 Signup and view all the answers

What is the primary responsibility of the transport layer in the context of packet transmission?

Managing the flow and order of transmitted packets Signup and view all the answers

If no acknowledgment is received for a transmitted packet, what action should the transport layer take?

Retransmit the unacknowledged packet Signup and view all the answers

Which of the following is NOT a responsibility of the transport layer?

Determining the most efficient routing path Signup and view all the answers

When a long message needs to be transmitted, what action does the transport layer take?

Repackages the message into smaller packets Signup and view all the answers

What is the purpose of reassembling packets in the correct order at the receiving end?

To reconstruct the original message from the transmitted packets Signup and view all the answers