Operating System (OS)
An incremental backup

uses more tapes
should be done each month
None of these
saves only files that have recently changed
saves all files

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Operating System (OS)
What is the method of handling deadlocks?

Use a protocol to ensure that the system will never enter a deadlock state
Allow the system to enter the deadlock state and then recover
All of these
Pretend that deadlocks never occur in the system

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