Question

What is the TCP/IP Protocol which is used for remote terminal connection service?

• A. FTP
• B. TELNET
• C. UDP
• D. RARP

Hint:

While TELNET was widely used in the past, it is considered insecure due to its lack of encryption. {SSH} (Secure Shell) is a more secure alternative for remote terminal connections.

Answer 1

The Correct Option is B

The correct answer is TELNET.
TELNET is a network protocol that allows a user to establish a remote terminal connection to a computer over a TCP/IP network. It operates on port 23 and provides a bidirectional communication channel between the client and server. The protocol allows users to remotely log into a device and access its resources and services as if they were physically present at the machine. TELNET uses a text-based interface, which is why it’s sometimes referred to as a "command-line" protocol. Here is a breakdown of the other options:
(A) FTP (File Transfer Protocol):
FTP is a standard network protocol used to transfer files from one host to another over a TCP-based network, like the internet. While FTP can be used for file management tasks, it is not used for terminal connections.
(C) UDP (User Datagram Protocol):
UDP is a communication protocol used in the transport layer of the TCP/IP model. Unlike TCP, which is connection-oriented, UDP is connectionless and does not guarantee delivery, order, or error checking. It is used for applications like video streaming or online gaming but is not used for remote terminal connections.
(D) RARP (Reverse Address Resolution Protocol):
RARP is a network protocol used to map a MAC address to an IP address. It is used in situations where a device does not know its IP address and needs to request it from a RARP server. RARP is not related to remote terminal services.
Thus, the correct answer is TELNET, which is specifically designed for remote access to terminals and services over a network.