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Operating System (OS)

Operating System (OS)
The most common systems security method is

firewall
All of these
None of these
encryption
passwords

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Operating System (OS)
You should save your computer from ?

Time bombs
Viruses
Worms
All of the listed here

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Operating System (OS)
Running multiple programs at the same time is called:

Single tasking
Multitasking
Symmetric
Foreground tasking

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Operating System (OS)
In which addressing mode the effective address of the operand is the contents of a register specified in the instruction and after accessing the operand, the contents of this register is incremented to point to the next item in the list?

index addressing
auto increment
None of these
indirect addressing
auto decrement

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Operating System (OS)
Which of the key is used to close the active window?

Ctrl+F5
Ctrl+F4
Alt+F6
Alt+F4

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Operating System (OS)
Which of the following software types is used to simplify using systems software?

operating environment
spreadsheet
multitasking
timesharing
None of these

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MORE MCQ ON Operating System (OS)

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