Operating System (OS)
System maintenance:

None of these
always requires several programs
is necessary on all systems, regardless of how good
is not required if the system is well written
is usually not necessary

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Operating System (OS)
Which of the following is not true about documentation?

Documentation increases the maintenance time and cost
None of these
Documentation, of a system, should be as clear and direct as possible
Documentation gives better understanding of the problem
All of these

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Operating System (OS)
The function(s) of file system is (are):

to provide complete file naming freedom to the users and to permit controlled sharing of files
to provide security against loss of information due to system failure
None of these
All of these
to provide for long and short term storage of files with appropriate economic tradeoffs.

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