Which two characteristics describe the UDP protocol? (Choose two.)
Click on the arrows to vote for the correct answer
A. B. C. D.AC
UDP stands for User Datagram Protocol, which is one of the simplest transport layer protocols used in computer networks. It is a connectionless protocol that is used to send datagrams or messages over the Internet Protocol (IP). UDP is commonly used for time-sensitive applications such as online gaming, streaming video, and voice-over-IP (VoIP). Here are the characteristics of the UDP protocol:
A. Limited error checking: UDP provides limited error checking compared to other transport layer protocols such as TCP (Transmission Control Protocol). It does not perform any error recovery mechanism, such as retransmission of lost packets, as it does not maintain a connection-oriented session. Instead, the error detection and correction must be handled by the application layer. This makes UDP a faster and more efficient protocol but also less reliable.
C. No recovery mechanisms: UDP does not provide any recovery mechanism to handle lost packets, and it is up to the application layer to handle the packet loss. This makes UDP unsuitable for applications that require reliable delivery of data, such as file transfer protocols.
B. Defined timers: UDP does not define any timers for tracking or controlling the transmission of packets. This is because UDP is a connectionless protocol and does not maintain any state information about the connection. Therefore, the application layer has to take care of any timeout and retransmission operations.
D. Three-way handshake: UDP does not use a three-way handshake like TCP to establish a connection. Instead, the sender just sends a datagram to the receiver, and the receiver sends an acknowledgement back to the sender. This means that there is no guarantee that the data will be delivered to the receiver.
In conclusion, UDP is a lightweight protocol that provides fast and efficient delivery of datagrams. However, it sacrifices reliability and error recovery mechanisms to achieve this speed. Applications that require reliable data transmission should use other protocols like TCP.