Operating System (OS)
File record length

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

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Operating System (OS)
The CPU, after receiving an interrupt from an I/O device

None of these
hands over control of address bus and data bus to the interrupting device
branches off to the interrupt service routine after completion of the current instruction
halts for a predetermined time
branches off to the interrupt service routine immediately

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Operating System (OS)
All of the following are TRUE regarding virtual memory EXCEPT

Virtual memory is the physical space o the hard drive
Any amount of RAM can be allocated to virtual memory
This temporary storage is called the swap file or page file
The setting for the amount of hard disk drive space to allocate virtual memory can be manually change

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