Networking Layers: Physical Layer and Data Link Layer
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Questions and Answers

Which layer of the OSI model is responsible for identifying network protocols, performing error checking, and synchronizing frames?

  • Physical Layer
  • Application Layer
  • Network Layer
  • Data Link Layer (correct)
  • In the OSI model, which layer uses MAC addresses to connect devices and define permissions to transmit and receive data?

  • Session Layer
  • Data Link Layer (correct)
  • Network Layer
  • Transport Layer
  • What is the primary responsibility of the Physical Layer in the OSI model?

  • Application Development
  • Error Checking
  • Defining Network Protocols
  • Transmitting Raw Data (correct)
  • How does the OSI model help in troubleshooting network issues?

    <p>By identifying specific network layers causing issues</p> Signup and view all the answers

    Which part of the network should networking software vendors define compatibility with according to the OSI model?

    <p>All layers of the OSI model</p> Signup and view all the answers

    What is a key advantage of the OSI model for network device manufacturers?

    <p>Facilitating open interoperability</p> Signup and view all the answers

    What is the main responsibility of the session layer in networking?

    <p>Creating communication channels between devices</p> Signup and view all the answers

    Which layer of the OSI model is responsible for reassembling data segments on the receiving end?

    <p>Transport Layer</p> Signup and view all the answers

    What function does the network layer perform regarding routing packets in a network?

    <p>Discovering the best path across a physical network</p> Signup and view all the answers

    In the TCP/IP model, which layer is responsible for sending data at a rate that matches the connection speed of the receiving device?

    <p>Transport Layer</p> Signup and view all the answers

    What is the primary role of the data link layer in networking?

    <p>Establishing and terminating connections between physically-connected nodes</p> Signup and view all the answers

    Which layer in networking is responsible for setting checkpoints during data transfer to enable resumption from the last checkpoint if a session is interrupted?

    <p>Session Layer</p> Signup and view all the answers

    Which model was introduced in 1983 by representatives of major computer and telecom companies and adopted as an international standard in 1984?

    <p>OSI 7-layer model</p> Signup and view all the answers

    Which layer of the OSI model is directly used by end-user software like web browsers and email clients?

    <p>Application Layer</p> Signup and view all the answers

    Which layer of the OSI model is responsible for preparing data for the application layer by encoding, encrypting, and compressing it?

    <p>Presentation Layer</p> Signup and view all the answers

    Which network model is the modern Internet based on, instead of the OSI model?

    <p>TCP/IP Model</p> Signup and view all the answers

    Which layer of the OSI model provides protocols like HTTP, FTP, POP, SMTP, and DNS for end-user software?

    <p>Application Layer</p> Signup and view all the answers

    In terms of network communication, which layer is the OSI model 'top down' description starting from?

    <p>Application Layer</p> Signup and view all the answers

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