What are three characteristics of UDP? (Choose three.)
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A. B. C. D. E.ABD
UDP (User Datagram Protocol) is a protocol used for sending data over the network. Unlike TCP (Transmission Control Protocol), UDP is connectionless, meaning it does not establish a dedicated connection between two hosts before transmitting data. Here are the characteristics of UDP:
A. UDP is faster than TCP: UDP is faster than TCP because it does not have to establish a connection, and it has a smaller overhead. However, this speed comes at the cost of reliability, which we will discuss in the next point.
B. UDP operates at the Transport Layer: UDP operates at the Transport Layer of the OSI (Open Systems Interconnection) model. The Transport Layer is responsible for ensuring reliable data transfer between applications.
C. UDP is connection-oriented: This statement is incorrect. UDP is connectionless, meaning it does not establish a dedicated connection between two hosts before transmitting data.
D. UDP data is sent best-effort: UDP does not provide any mechanism for error-checking or retransmission of lost packets. Therefore, UDP data is sent best-effort, meaning the data is sent as fast as possible without any guarantees of reliability.
E. UDP is more reliable than TCP: This statement is incorrect. TCP is a reliable protocol because it provides mechanisms for error-checking and retransmission of lost packets. UDP, on the other hand, does not provide these mechanisms, making it less reliable than TCP.
In conclusion, UDP is a fast, connectionless protocol that does not provide any mechanism for error-checking or retransmission of lost packets. It is commonly used for applications that require speed over reliability, such as video streaming and online gaming.