What is TCP and UDP?

Question

Accepted Answer

TCP and UDP are transport layer protocols used for communication between devices on a network.

TCP (Transmission Control Protocol) is a connection-oriented protocol that ensures reliable data transmission by establishing a connection between two devices and providing error checking and flow control.
UDP (User Datagram Protocol) is a connectionless protocol that does not establish a connection before transmitting data. It is faster but less reliable than TCP.
TCP is used for applications that require reliable data transmission, such as email, file transfer, and web browsing.
UDP is used for applications that require fast data transmission, such as online gaming, video streaming, and VoIP.
Both protocols use port numbers to identify the application or service that is sending or receiving data.

Top Ajax Network Solutions Network Security Engineer interview questions & answers