2.4 UDP, TCP, and Common Ports
According to the video, Transmission Control Protocol (TCP) is a connectionless protocol.
False. It is connected.
According to the video, TCP stands for Transmission Communication Protocol.
False. Transmission Control Protocol
Two commonly used TCP/IP protocols
are the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP). These protocols function at layer 4 of the OSI model and are responsible for end-to-end communication between two devices. TCP is a connection-oriented protocol, and UDP is a connectionless protocol.
TCP
is a connection-oriented protocol, meaning that both nodes establish an end-to-end logical connection prior to sending data. TCP uses an expected acknowledgment and ordering process before communicating. If the acknowledgments are not received in order, then TCP retransmits. This method is used in order for TCP to guarantee data delivery. TCP's acknowledgment process is often referred to as a three-way handshake because three packets are transmitted to establish a reliable connection prior to transmitting sending the data. Regarding TCP, connection-oriented and reliable mean the same thing.
UDP
is a connectionless protocol, meaning it does not need to establish an end-to-end connection before data can be sent. Unlike TCP, UDP does not use an acknowledgment process before communicating. The data is sent to the destination address found in its header; however, while in transit if the data is lost, the transmitting node doesn't know it needs to be resent. Therefore, UDP is often thought of as a best-effort protocol. The transmitting node sends data and has no idea if the receiving node received it or not. UDP is faster than TCP because there is minimal overhead when sending data.
According to the video, Transmission Control Protocol (TCP) guarantees data is received and in order.
True
According to the video, User Datagram Protocol (UDP) is faster than Transmission Control Protocol (TCP) and has less overhead.
True
According to the video, the three messages in a Transmission Control Protocol (TCP) three-way handshake are 1.SYN 2.SYN ACK 3.ACK received.
True
