Question

1. What is a circuit?

2.   What is Telnet, and why is it useful?

3. How is TCP different from UDP?

Answer 1

Ans1

In Electronics, a circuit is a closed path or loop which allows electricity to flow through it or generally, a circuit is a path that starts and ends at a same point

Ans 2

Telnet is a network protocol and is used to communicate with a remote device or server. It provides the users with a bidirectional interactive text-oriented communication system with a virtual terminal connection.

The greatest advantage of telnet is accessing remote computers. It can be used for a variety of activities on a server, including editing files, running various programs and checking email.

Ans3

TCP is different from UDP in the following ways:

• TCP(Transmission control protocol) is connection-oriented which means the device should establish a connection before transmitting the data and also it should close the connection after the data is transmitted whereas the UDP(User datagram protocol) is connectionless which means the data is exchanged without setting up any links.
• TCP is slower than UDP. UDP is faster and more efficient
• Data is transmitted in a particular sequence in TCP whereas there is no sequencing of data in UDP.