Transport Layer

What does TCP stand for?

Transmission Control Protocol

Which of the TCP/IP model layers is responsible for breaking down the message into packets

Transport

UDP is called a _____ transport protocol

connectionless, unreliable

UDP is an acronym for ________

User Datagram Protocol

UDP and TCP are both _____ layer protocols

Transport

UDP needs the _______ address to deliver the user datagram to the correct application process

port

Which of the following does UDP guarantee?

None of these choices

UDP packets are called 

User Datagram

Three-way handshake is used by

TCP

What is the main function of the Transport Layer

Provide end to end delivery

What is the size of the TCP segment header

20 bytes

The ___________ number is the byte number of the first byte of data in the TCP packet sent

sequence

The ___________ number is the sequence number of the next byte the receiver expects to receive

acknowledgement

UDP sets up connections with the three way handshake

False

_____ bit is used in the initial three way handshake where both parties generate the initial sequence numbers

SYN

_____ bit is used to end TCP connection

FIN

A _______ is the interface through which an application layer process communicates with the transport layer

socket

What is an advantage that UDP has over TCP

higher speed

The TCP ____ field represents the number of bytes that are available in the receive buffer

receive window

TCP receiver “advertises” free buffer space in ______ field in TCP header

receive window

_______ is an end-to-end mechanism that controls the traffic between a sender and a receiver

flow control

the TCP _______ means resending the packets over the network that have been either lost or damaged

retransmission

delivering received segments at the receiver side to the correct app layer processes is called

demultiplexing

the transport layer uses IP addresses and port numbers to direct segment to appropriate socket

True

To release TCP connection ________ must use the FIN bit to end the connection

both sender and receiver

IF a TCP sender receives three duplicate acknowledgements with the same acknowledgement number, the sender resend an unACKed segment with the smallest sequence number without waiting for timeout. This mechanism is called ___________

TCP fast retransmit

TCP _______ refers to the mechanism that prevents congestion from happening or removes it after congestion takes place

congestion control