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Which control unlocks the keyboard?

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Which control unlocks the keyboard?

(a) ctrl-u

(b) ctrl-c

(c) ctrl-z

(d) ctrl-q

The question was posed to me during an interview.

This question is from General Purpose Commands in division The Unix Architecture & General Purpose Utilities of Unix

1 Answer

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Best answer
Correct choice is (d) ctrl-q

Easiest explanation: ctrl-q resumes the scrolling of screen output and unlocks the keyboard. Ctrl-h is used to erase character by character when backspace doesn’t work while and Ctrl-c interrupts the program and bring back the prompt.

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