TCP socket and Connection-oriented Demux

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What is used to identify a TCP socket on a server host?

Dest IP address and dest port number

4-tuple: source IP address, source port number, dest IP address, dest port number (correct)

3-tuple: source IP address, source port number, dest IP address

Source IP address and source port number

What is the primary reason for flow control in data communication?

To prevent the sender from overwhelming the receiver (correct)

To reduce propagation delay

To ensure reliable data transmission

To increase the transmission speed

What is sent by the receiver to the sender to inform it that it is overwhelmed with data?

Timeout packet

Error packet

NACK packet

ACK packet (correct)

What is the delay between transmission and receipt of data known as?

Propagation delay Signup and view all the answers

Why is error control necessary in data communication?

To prevent errors during transmission Signup and view all the answers

What is the mechanism used to correct errors during transmission?

Error control Signup and view all the answers

What is the primary function of the transport layer in a network?

To provide logical communication between processes Signup and view all the answers

What is the purpose of port numbers in connectionless demultiplexing?

To direct the segment to the appropriate socket Signup and view all the answers

What is NOT a service provided by the transport layer protocol?

Delay guarantees Signup and view all the answers

What happens when a host receives IP datagrams with the same destination port number but different source IP addresses and/or source port numbers?

They are directed to the same socket Signup and view all the answers

What type of demultiplexing is used in UDP?

Connectionless demultiplexing Signup and view all the answers

Which of the following is NOT a function of the transport layer?

Routing and switching Signup and view all the answers

What is the main disadvantage of the stop-and-wait flow control?

At any time, only one frame is sent and waiting to be acknowledged. Signup and view all the answers

What is the term for a flow control method that allows multiple frames to be in transit at the same time?

Sliding Window protocol Signup and view all the answers

What is the main characteristic of UDP that makes it unreliable?

Each user datagram is an independent datagram and may be lost or delivered out-of-order. Signup and view all the answers

What is the primary reason for congestion in a network?

The number of packets sent is greater than the capacity of the network Signup and view all the answers

What is the purpose of window size in Sliding Window protocol?

To limit the number of frames that can be sent simultaneously Signup and view all the answers

What is the primary advantage of Sliding Window protocol over Stop-and-Wait protocol?

It improves efficiency by allowing multiple frames to be in transit Signup and view all the answers