Operating System (OS)
In which of the storage placement strategies a program is placed in the smallest available hole in the main memory?

None of these
first fit
best fit
buddy
worst fit

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Operating System (OS)
Most of the microcomputer's operating systems like Apple DOS, MS DOS and PC DOS etc. are called disk operating systems because

they are available on magnetic tapes
None of these
they are memory resident
they are initially stored on disk
they are partly in primary memory and partly on disk

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Operating System (OS)
Which, of the following, is true for testing and debugging?

Testing detects the syntax errors in the program while debugging corrects those errors in the program
Testing checks for logical errors in the programs, while debugging is a process of correcting those errors in the program
None of these
All of these
Testing and debugging indicate the same thing

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Operating System (OS)
The term 'polling' in a computer means a process by which a computer system

inquires to see if a terminal has any transaction to send
detects/corrects errors
decides correct alternative by analysing several ones
None of these
multiplexes the inputs and updates the memory accordingly

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