operating system Model Questions & Answers, Practice Test for ibps po mains

Question :16

The strategy of allowing processes that are logically runnable to be temporarily suspended is called

Answer: (b)

Question :17

The first graphical user interface was designed by

Answer: (c)

Question :18

Which of the following is/are function of operating system?

Answer: (d)

Question :19

In DOS, the DIR command is used to

Answer: (c)

Question :20

Which of the following capabilities is required for a system program to execute more than one program at a time?

Answer: (d)

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