Operating System (OS)
Addressing structure

performs indicated operations on two fast registers of the machine and leave the result in one of the registers.
defines the fundamental method of determining effective operand addresses
are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.
None of these
All of these

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Operating System (OS)
Trojan-Horse programs

None of these
are legitimate programs that allow unauthorized access
usually are immediately discovered
do not usually work
are hidden programs that do not show up on the system

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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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