Operating System (OS)
Which of the following is not an advantage of multiprogramming?

decreased operating-system overhead
None of these
increased throughput
ability to assign priorities to jobs
shorter response time

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Operating System (OS)
System maintenance:

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

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

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

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