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Operating System (OS)

Operating System (OS)
Which is not an external command ?

Sys
None of the listed here
XCOPY
Edit

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Operating System (OS)
The principles of structured programming forbid the use of

WHILE-DO
IF-THEN-ELSE
DO-WHILE
None of these
GOTO

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Operating System (OS)
The working set theory of programming behaviour of processes running within an operating system involves

the collection of pages that a process accesses
disk scheduling mechanisms
None of these
assigning the CPU to processes
coalescing holes in memory

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Operating System (OS)
An incremental backup

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

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Operating System (OS)
Relocation bits used by relocating loader are specified (generated) by

Assembler or translator
None of these
Linker
Relocating loader itself
Macro processor

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Operating System (OS)
A bar that inform you the available options in your computer, opened applications, background running applications and can be used to switch between applications quickly is

Menu bar
Status bar
Tool bar
Task bar

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