Which of the following is/are true for UDP protocol?
A. It is called Uniform Data Protocol
B. It is called User Datagram Protocol
C. It belongs to Transport Layer
D. It belongs to Network Layer
Choose the correct answer from the options given below:

Correct option is B

We need to identify the correct statements about the UDP (User Datagram Protocol).
A. It is called Uniform Data Protocol — False
UDP does not stand for Uniform Data Protocol. The correct expansion is:
UDP = User Datagram Protocol
Therefore, statement A is incorrect.
B. It is called User Datagram Protocol — True
UDP stands for User Datagram Protocol. It is a connectionless transport-layer protocol that provides a simple and fast method for sending datagrams.
C. It belongs to Transport Layer — True
UDP operates at the Transport Layer (Layer 4) of the OSI model. Other commonly known transport-layer protocols include:
· TCP
· UDP
· SCTP
D. It belongs to Network Layer — False
UDP does not belong to the Network Layer. The Network Layer is responsible for functions such as logical addressing and routing. For example, IP (IPv4/IPv6) operates at the Network Layer.
Information Booster
1. UDP stands for User Datagram Protocol.
2. UDP operates at the Transport Layer.
3. UDP is connectionless.
4. UDP does not guarantee delivery, ordering, or retransmission.
5. UDP has lower overhead than TCP and is commonly used for applications such as DNS, streaming, and real-time communication.
Additional Knowledge
Transport Layer → TCP, UDP, SCTP
Network Layer → IP, ICMP