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OSI Model Layers Quiz

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Questions and Answers

Which layer of the OSI reference model is responsible for providing services to the presentation layer to organize its dialogue and manage data exchange?

Presentation layer

Transport layer

Application layer

Session layer (correct)

Which protocol model is also known as the 'Internet Model' and was created in the early 1970s for internetwork communications?

OSI reference model

Data link layer model

Physical layer model

TCP/IP protocol model (correct)

What is the process called when application data is passed down the protocol stack and information is added at each level?

Multiplexing

Protocol data unit

Data encapsulation (correct)

Message segmentation

What is the name given to the form that the data takes at each layer of the protocol stack?

Protocol data unit Signup and view all the answers

What is the purpose of dividing large streams of data into smaller, more manageable pieces to send over the network?

To enable multiplexing Signup and view all the answers

Which layer of the OSI reference model is responsible for describing the mechanical, electrical, functional, and procedural means to transmit bits across physical connections?

Physical layer Signup and view all the answers

What is the primary function of the Physical Layer in the OSI model?

To provide the means to transport the bits that make up a data link layer frame across the network media Signup and view all the answers

Which of the following is the correct hierarchy of protocol data units (PDUs) from highest to lowest layer?

Data, Segment, Packet, Frame, Bits Signup and view all the answers

What is the primary function of the Transmission Control Protocol (TCP) in the OSI model?

To manage the individual conversations and provide guaranteed delivery Signup and view all the answers

What is the purpose of the Ethernet protocol in the OSI model?

To deliver messages from one NIC to another NIC on the same Ethernet LAN Signup and view all the answers

What is the difference between throughput and goodput in the context of network performance?

Throughput is the measure of the transfer of bits across the media, while goodput is the measure of usable data transferred. Signup and view all the answers

What is the primary function of the Internet Protocol (IP) in the OSI model?

To deliver messages globally from the sender to the receiver Signup and view all the answers