Operating System (OS)
Data encryption

cannot be used by private installations
is mostly used by financial networks
is not necessary, since data cannot be intercepted
None of these
is mostly used by public networks

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Operating System (OS)
Thrashing

always occurs on large computers
can always be avoided by swapping
None of these
is a natural consequence of virtual memory systems
can be caused by poor paging algorithms

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Operating System (OS)
What is dispatch latency ?

None of the listed here
The whole time taken by all processor
The time taken by the processor to write a file into disk
The time taken by the dispatcher to stop one process and start another

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Operating System (OS)
A linker

creates a load module
is not needed with a good compiler
None of these
is not necessary with variable partitions
must be run after the loader

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