Tag: osi-model

Questions Related to osi-model

Routers operate at which layer of the OSI model?
networking osi-model

  1. physical

  2. transport

  3. network

  4. MAC sublayer of the data link layer

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Correct Option: C

Bits are packaged into frames at which layer of the OSI model?
networking osi-model

  1. data link

  2. transport

  3. physical

  4. presentation

  5. application

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Correct Option: A

Which of the following are benefits of using a layered network model?

networking osi-model

  1. it facilitates troubleshooting

  2. it breaks the complex process of networking into more manageable chunks

  3. it allows layers developed by different vendors to interoperate.

  4. all of the above

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Correct Option: D

AI Explanation

To answer this question, you need to understand the benefits of using a layered network model. Let's go through each option to understand why it is correct or incorrect:

Option A) It facilitates troubleshooting - This option is correct because a layered network model provides a structured approach to troubleshooting network issues. Each layer can be individually tested and diagnosed, making it easier to identify and resolve problems.

Option B) It breaks the complex process of networking into more manageable chunks - This option is correct because a layered network model divides the networking process into different layers, each responsible for a specific set of functions. This division makes the overall networking process more organized and easier to understand.

Option C) It allows layers developed by different vendors to interoperate - This option is correct because a layered network model provides a standardized framework for networking. Different vendors can develop their own implementations of each layer as long as they adhere to the specifications and protocols defined by the model. This allows interoperability between different vendor products.

Option D) All of the above - This option is correct because all of the benefits mentioned in options A, B, and C are true. Using a layered network model facilitates troubleshooting, breaks the complex process of networking into more manageable chunks, and allows layers developed by different vendors to interoperate.

The correct answer is D) All of the above. This option is correct because it includes all the benefits of using a layered network model explained in options A, B, and C.

The layers of the OSI model, from the top down, are:

networking osi-model

  1. application, presentation, session, transport, network, data link, physical

  2. session, presentation, data transport, MAC, network, physical

  3. physical, data link, network, transport, session, presentation, application

  4. application, encryption, network, transport, logical link control, physical

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Correct Option: A
Explanation:

To answer this question, the user needs to have an understanding of the OSI (Open Systems Interconnection) model, which is a conceptual framework used to describe how data is transmitted over a network. The model is divided into seven layers, and each layer is responsible for a specific aspect of the communication process.

Now, let's go through each option and explain why it is right or wrong:

A. application, presentation, session, transport, network, data link, physical: This option is correct. The OSI model layers, from top to bottom, are application, presentation, session, transport, network, data link, and physical. This sequence spells out the mnemonic "All People Seem To Need Data Processing," which can be used to help remember the order of the layers.

B. session, presentation, data transport, MAC, network, physical: This option is incorrect. The layers listed in this option are not in the correct order, and some of the layer names are incorrect. For example, "data transport" is not a layer in the OSI model, and "MAC" refers to the Media Access Control sublayer, which is part of the data link layer.

C. physical, data link, network, transport, session, presentation, application: This option is incorrect. The order of the layers is incorrect, starting with the physical layer and ending with the application layer.

D. application, encryption, network, transport, logical link control, physical: This option is incorrect. The layer names are not correct, and "encryption" is not a layer in the OSI model.

Therefore, the correct answer is:

The Answer is: A. application, presentation, session, transport, network, data link, physical.

Which of the following operate at the presentation layer?
networking osi-model

  1. FTP and HTTP

  2. SMTP

  3. UDP

  4. midi and jpeg

  5. all of the above

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Correct Option: D

Which of the following are transport layer protocols?
networking osi-model

  1. TCP and UDP

  2. ATM

  3. CISC

  4. HTTP and FTP

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Correct Option: A

Which of the following are considered to be the upper layer protocols?
networking osi-model

  1. presentation and session

  2. application and presentation

  3. application, presentation, and session

  4. application, presentation, session, and transport

  5. application

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Correct Option: C

Flow control takes place at which layer?
networking osi-model

  1. physical

  2. Network

  3. transport

  4. data link

  5. application

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Correct Option: C

Encryption takes place at which layer?

networking osi-model

  1. physical

  2. presentation

  3. application

  4. session

  5. data link

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Correct Option: B

The network layer uses physical addresses to route data to destination hosts.
networking osi-model

  1. True

  2. False

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Correct Option: B