Question

In which mode of telnet, the client echoes the character on the screen but does not send it until a whole line is completed?

(a) default mode

(b) character mode

(c) server mode

(d) command mode

This question was addressed to me during an online interview.

This intriguing question comes from Telnet in division Application Layer of Computer Network

Answer 1

Correct answer is (a) default mode

Best explanation: In the default mode, the client does not send each character typed by the user to the server, thus saving the amount of packet transmissions required for executing each operation. But the server has to remain idle until the client sends the completed line wasting a lot of time.