TCP Connection-Oriented Demux
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Questions and Answers

What is the primary purpose of flow control in data communication?

  • To reduce the memory storage requirements of the receiver
  • To correct errors that occur during transmission
  • To increase the speed of data transmission
  • To ensure a fast sender does not overwhelm a slow receiver (correct)

What is the main function of an ACK packet in data communication?

  • To inform the sender of an error in transmission
  • To request the sender to stop transmitting data
  • To acknowledge receipt of a packet and request the next packet (correct)
  • To terminate a connection

Why is it necessary to estimate the timeout period in data communication?

  • To determine the propagation delay (correct)
  • To determine the receiver's memory capacity
  • To determine the sender's transmission speed
  • To determine the transmission speed

What is the purpose of demux in TCP?

<p>To demultiplex a connection into multiple sockets (B)</p> Signup and view all the answers

What is the purpose of congestion control in data communication?

<p>To prevent network congestion (D)</p> Signup and view all the answers

What is the purpose of the 4-tuple in TCP?

<p>To identify a unique socket (D)</p> Signup and view all the answers

What is the main disadvantage of the stop-and-wait protocol in terms of transmission media?

<p>At any time, only one frame is sent and waiting to be ACK (D)</p> Signup and view all the answers

What is the purpose of acknowledgement packets in the stop-and-wait protocol?

<p>To indicate willingness to accept another frame (B)</p> Signup and view all the answers

What is the main advantage of the sliding window protocol over the stop-and-wait protocol?

<p>It allows multiple frames to be in transit at the same time (D)</p> Signup and view all the answers

What is congestion control primarily used to prevent?

<p>Packet loss due to network overload (D)</p> Signup and view all the answers

What is the term for the number of frames that a sender can transmit at the same time in the sliding window protocol?

<p>Window size (C)</p> Signup and view all the answers

What is a characteristic of the user datagram protocol (UDP)?

<p>It is a connectionless, best-effort protocol (C)</p> Signup and view all the answers

What is the primary function of the transport layer in computer networks?

<p>Provide logical communication between application processes (B)</p> Signup and view all the answers

What is the purpose of demultiplexing in the transport layer?

<p>To direct transport-layer segments to the appropriate socket (C)</p> Signup and view all the answers

What type of demultiplexing is used when creating a datagram to send into a UDP socket?

<p>Connectionless demultiplexing (C)</p> Signup and view all the answers

Which of the following services is not available in the transport layer protocol?

<p>Delay guarantees (C)</p> Signup and view all the answers

What is the purpose of the transport layer's flow control mechanism?

<p>To regulate the amount of data that can be sent (D)</p> Signup and view all the answers

What is the transport layer responsible for in terms of error correction and recovery?

<p>Detecting and correcting errors (C)</p> Signup and view all the answers

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