O LEVEL- INTERNET TECHNOLOGY & WEB DESIGN

O LEVEL-PAPER 2nd -- M2-R4 :

INTERNET TECHNOLOGY & WEB DESIGN

THESE ARE THE QUESTIONS WHICH FREQUENTLY ASKED IN 

  LAST 10 YEARS -----

TELNET AND FTP

Definition of Telnet

Telnet is a standard TCP/IP protocol for providing virtual terminal services standardized by ISO. In this protocol, the client-server first sets up a connection link with the remote server and then keystrokes from the user’s keyboard are transferred directly to the remote computer, which looks like the keystrokes were passed from the keyboard connected to the machine. The result is also carried back to the user from the remote machine. The process is considered to be transparent to the users because it seems like the user is directly attached to the remote machine.

Definition of FTP

File Transfer Protocol (FTP) is primarily used for transferring the files from local machine to remote machine. FTP client establishes the connection with the help of the TCP. The FTP server allows multiple client to access the server concurrently. The transfer of a file to the remote machine may encounter some issues such as file name conventions, directory structure and representation of text and data in two different system can be distinct which would make transferring of file difficult.

BASIS FOR COMPARISON	TELNET	FTP
Basic	It allows a user to log in to the remote server.	It allows a user to transfer a file to the remote machine.
Functions on Port number	23	21 and 20
Security	May have some security concerns.	More secure than Telnet.
Remote login	Is required to access the system resources.	Not necessarily needed.