Operating System (OS)
Operating system

enables the programmer to draw a flowchart
provides a layered, user-friendly interface
All of these
None of these
links a program with the subroutines it references

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Operating System (OS)
Trojan-Horse programs

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

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Operating System (OS)
The LRU algorithm

pages out pages that have not been used recently
None of these
pages out pages that have been used recently
pages out the first page in a given area
pages out pages that have been least used recently

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