Operating System (OS)
Capacity planning

None of these
requires detailed system performance information
does not depend on the monitoring tools available
is independent of the operating system
is not needed in small installations

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

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

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Operating System (OS)
File record length

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

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