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 (B)</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) (B)</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) (A)</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 (B)</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 (C)</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 (B)</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 (D)</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 (C)</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 (B)</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 (A)</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 (A)</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 (A)</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 (A)</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 (B)</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 (A)</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 (A)</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 (A)</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 (D)</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 (D)</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 (C)</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 (B)</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 (A)</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 (A)</p> Signup and view all the answers

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

<p>TCP (A)</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 (C)</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 (B)</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 (C)</p> Signup and view all the answers

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