CHP#1 part 4
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Questions and Answers

Which layer of the OSI model is responsible for segmentation, flow control, and error control?

  • Layer 4: Transport Layer (correct)
  • Layer 1: Physical Layer
  • Layer 3: Network Layer
  • Layer 2: Data Link Layer

    • Which layer of the OSI model is responsible for breaking a large data into smaller packets?

  • Layer 2: Data Link Layer
  • Layer 4: Transport Layer (correct)
  • Layer 3: Network Layer
  • Layer 1: Physical Layer

    • Which layer of the OSI model is responsible for ensuring that all packets have been received and eliminating duplicate packets?

  • Layer 2: Data Link Layer
  • Layer 1: Physical Layer
  • Layer 4: Transport Layer (correct)
  • Layer 3: Network Layer

    • Which layer of the OSI model is responsible for performing flow control to ensure that no computer is overwhelmed by the number of messages it receives?

    <p>Layer 4: Transport Layer</p> Signup and view all the answers

    Which transport layer protocol is connection-oriented and provides feedback for retransmitting lost data?

    <p>Transmission Control Protocol (TCP)</p> Signup and view all the answers

    Which transport layer protocol is faster because it does not provide any feedback for lost data?

    <p>User Datagram Protocol (UDP)</p> Signup and view all the answers

    Which layer of the OSI model is responsible for controlling how data is placed and received from the media?

    <p>Layer 2: Data Link Layer</p> Signup and view all the answers

    Which technique is used to get the data frame on and off the media?

    <p>Media Access Control</p> Signup and view all the answers

    What happens when two or more devices connected to the same media send data simultaneously?

    <p>The data packets collide</p> Signup and view all the answers

    What is the purpose of the Frame check sequence (FCS) in a frame?

    <p>To check for errors in the received frame</p> Signup and view all the answers

    Which layer of the OSI model is responsible for breaking long messages into smaller ones for easier transmission?

    <p>Layer 4: Transport Layer</p> Signup and view all the answers

    What is the role of the Application Layer in the Internet Model?

    <p>To establish end-to-end connections</p> Signup and view all the answers

    Which of the following is a disadvantage of using layers in a network model?

    <p>Increased processing power needed in computers</p> Signup and view all the answers

    What is the purpose of encapsulation in a layered network model?

    <p>To simplify the development of new software</p> Signup and view all the answers

    What is the role of standards in data communication networks?

    <p>To ensure compatibility between hardware and software</p> Signup and view all the answers

    Why is it important for each layer in one computer to communicate with its matching layer in the other computer?

    <p>To ensure compatibility between hardware and software</p> Signup and view all the answers

    What is the term used to describe the set of software used to understand different protocols in a layered network model?

    <p>Protocol stack</p> Signup and view all the answers

    What is the advantage of using a layered network model in data communication networks?

    <p>Easy development of new software</p> Signup and view all the answers

    Which layer of the OSI model is responsible for logical addressing, routing, and path determination?

    <p>Layer 3: Network Layer</p> Signup and view all the answers

    What is the purpose of the Data Link Layer in the OSI model?

    <p>To transfer data between computers via a local media</p> Signup and view all the answers

    Which protocol is commonly used by Layer 3 devices to determine the best possible path for data delivery?

    <p>All of the above</p> Signup and view all the answers

    What type of address is assigned to each segment in the Network Layer to form a data packet?

    <p>IP address</p> Signup and view all the answers

    What is the purpose of the Media Access Control (MAC) in the Data Link Layer?

    <p>To control how data is placed and received from the media</p> Signup and view all the answers

    What is the role of the Data Link Layer in transferring data between two distant hosts connected to different networks?

    <p>To encapsulate IP packets into frames</p> Signup and view all the answers

    Which layer of the OSI model is responsible for breaking long messages into smaller ones for easier transmission?

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

    What is the purpose of the Frame check sequence (FCS) in a frame?

    <p>To check for errors</p> Signup and view all the answers

    Which transport layer protocol is connection-oriented and provides feedback for retransmitting lost data?

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

    Which layer of the OSI model is responsible for logical addressing, routing, and path determination?

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

    What is the purpose of the Media Access Control (MAC) in the Data Link Layer?

    <p>To instruct physical hardware to transmit the frame</p> Signup and view all the answers

    What is the role of the Data Link Layer in transferring data between two distant hosts connected to different networks?

    <p>To format the message and add error check information</p> Signup and view all the answers

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