Operating System (OS)
What is the name of the system which deals with the running of the actual computer and not with the programming problems?

Source program
Systems program
None of these
Object program
Operating system

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Operating System (OS)
File record length

should be chosen to match the data characteristics
Should always be variable
None of these
should always be fixed
depends upon the size of the file

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Operating System (OS)
A critical region is

a program segment that often causes unexpected system crashes
a program segment where shared resources are accessed
one which is enclosed by a pair of P and V operations on semaphores
none is the above
a program segment that has not been proved bug-free

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