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Operating System (OS)

Operating System (OS)
Which of the following is the extension of WordPad?

None of above
.ppt
.xls
.rtf

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Operating System (OS)
In analyzing the compilation of PL/I program, the description "creation of more optimal matrix" is associated with

Code generation
Syntax analysis
Machine independent optimization
None of these
Assembly and output

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Operating System (OS)
Which of the following is not true about the memory management?

virtual memory is used only in multi-user systems
paging suffers from internal fragmentation
None of these
segmentation suffers from external fragmentation
segmented memory can be paged

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Operating System (OS)
In MS-DOS, relocatable object files and load modules have extensions

.DAS and .EXE, respectively
.COM and .OBJ, respectively
.OBJ and .COM or .EXE, respectively
None of these
.EXE and .OBJ, respectively

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Operating System (OS)
What scheduling algorithm allows processes that are logical runnable to be temporarily suspended?

non-preemptive scheduling
FCFS
preemptive scheduling
FIFO
None of these

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Operating System (OS)
Essential files of MS DOS are

Command.com
Msdos.sys
All of the listed here
Lo.sys

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