rom the perspective of the sender, the size of the TCP rwnd at the receiver never changes throughout the duration of the connection.Group of answer choicesTrue. The receiver advertises the amount of memory it in it's receive buffer at the start of the connection and the sender uses that value throughout the life of the connection.False. The receiver constantly recalculates the amount of free memory it has in it's receive buffer, and it advertises the current value in every segment it sends.

True or False: From the perspective of the sender, the size of the TCP rwnd at the receiver never changes throughout the duration of the connection. Justify your answer.Group of answer choicesTrueFalse

3.5-7 TCP Flow Control. True or False:  with TCP’s flow control mechanism, where the receiver tells the sender how much free buffer space it has (and the sender always limits the amount of outstanding, unACKed, in-flight data to less than this amount), it is not possible for the sender to send more data than the receiver has room to buffer.Group of answer choicesTrueFalse

True or false: The TCP provides mechanisms to ensure that data is reliably delivered.1 pointTrueFalse

A TCP receiver must send an acknowledgement for every segment it receives.Group of answer choicesTrue: for the sender to know that the bytes in each segment have been received the receiver must ACK each segment individually.False: TCP uses cumulative acknowledgements, so the receiver need only send an acknowledgment for the bytes in the segment with the largest sequence number that has been successfully received.

When an application uses a TCP socket, what transport services are provided to the application by TCP?  Check all that apply.Group of answer choicesThroughput guarantee. The socket can be configured to provide a minimum throughput guarantee between sender and receiver.Loss-free data transfer. The service will reliably transfer all data to the receiver, recovering from packets dropped in the network due to router buffer overflow.Congestion control.  The service will control senders so that the senders do not collectively send more data than links in the network can handle.Flow Control. The provided service will ensure that the sender does not send so fast as to overflow receiver buffers.Best effort service.  The service will make a best effort to deliver data to the destination but makes no guarantees that any particular segment of data will actually get there.Real-time delivery. The service will guarantee that data will be delivered to the receiver within a specified time bound.