Operating System (OS)
Link encryption

is used only to debug
None of these
can not be used in a public network
is less secure than end-to-end encryption
is more secure than end-to-end encryption

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

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

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Operating System (OS)
The FIFO algorithm

execute first the job that has been in the queue the longest
executes first the job with the least processor needs
None of these
executes first the job that last entered the queue
executes first the job that first entered the queue

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