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Online Tests
PPSC Computer Science Chapter 19 Operating System Online Test MCQs With Answers
Question # 1
Default permissions of file can be changed with.
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Group
Chperm
chmod
Chall
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Question # 2
A series of statements explaining how the data is to be processed is called.
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Instruction
Compiler
Program
Interpretor
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Question # 3
Which among the following is used to write small program to control Linux Functionalities.
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Shell commands
Shell script
C
Java
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Question # 4
Dynamic allocation of storage areas with VSAM files is accomplished by
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Hashing
Control splits
Over flow areas
Relative recording
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Question # 5
Which command can be used to know the present working directory.
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pad
pww
pwd
pdd
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Question # 6
In the shell , by default all variables are considered and stored as.
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Integer
String
Float
Chracter
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Question # 7
By which command content of a file can be searched.
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grep
search
srh
show
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Question # 8
A thread is.
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Lightweight process where the context switching is low
Lightweight process where the context switching is high
Used to speed up paging
Used in dead locks
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Question # 9
Which is not a valid file type in LINUX.
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Socket
FIFO
Soft link
Inode
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Question # 10
Which command gives the first byte where the difference is in the file 1 & file2
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Diff
differ
Cmp
Compare
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Question # 11
Which type of software can be used to merge data of two files in one files.
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System software
Networking software
Documenting software
utility software
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Question # 12
What is meaning of ILP32
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32 bit integrated Long & Pointer
32 bit integer long & pointer
32 bit integer Long & Point
32 bit integer , Lost & pointer
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Question # 13
Creating a job queue is a function of
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Spooler
Interpolator
Complier
Drive
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Question # 14
Semaphores are used to solve the problem of.
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Race condition
Process synchronization
Mutual exclusion
Belady problem
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Question # 15
Remote computing services involves the use of.
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Multi processing
Multi programming
Batch processing
Real time processing
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Question # 16
Which of the following is always there in a computer.
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Batch system
Operating system
Time sharing system
Controlling system
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Question # 17
Re location bits used by relocating loader are a pacified by
Choose an answer
Relocating loader
Assembler
Translator
Linker
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Question # 18
Scissoring enables
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A part of data to be displayed
Entire data to be displayed
Full data display on full area of seen
No data display
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Question # 19
Macintosh computer uses
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System 7.0
AU/X
Xenix
None
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Question # 20
Which of following is not an advantage of multiprogramming.
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Increased through out
Shorter response time
Ability to assign priories of jobs
Decreased system overload
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Question # 21
To display disk consumption of a specific directory which command is used.
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dd
du
dt
di
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