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Operating System
1081
Computer Science Fundamentals
998
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OS Processes
In a multiprogramming environment __________
the processor executes more than one process at a time
the programs are developed by more than one person
more than one process resides in the memory
a single user can execute many programs at the same time
In a multiprogramming environment more than one process resides in the memory. Whenever a CPU is available, one process amongst all present in memory gets the CPU for execution. Multiprogramming increases CPU utilization.
Author:
rikazzz
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OS The Linux System
What is a locality?
a set of pages that are actively used together
a space in memory
an area near a set of processes
none of the mentioned
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rikazzz
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OS File Systems and Their Implementation
A section of disk at the beginning of each partition is set aside to contain the table in _____________
fat
linked allocation
hashed allocation
indexed allocation
Author:
rikazzz
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Computer Science Fundamentals
Which of the following is not a characteristic of a computer?
Diligence
I.Q.
Accuracy
Versatility
The Computer system has no I.Q. of its own. It does only what it is programmed to do. It cannot take decisions of its own. A computer is diligent because it can work continuously for hours without getting any errors or without getting grumbled. The accuracy of a computer is consistently high and its level of accuracy depends on its design. A computer can perform any task if, it can be broken down into a series of logical steps. Therefore, a computer is versatile.
Author:
rikazzz
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OS File Systems and Their Implementation
What is the mounting of file system?
crating of a filesystem
deleting a filesystem
attaching portion of the file system into a directory structure
removing the portion of the file system into a directory structure
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rikazzz
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Computer Science Fundamentals
The result of >> of 11001 by 3-bits will be ______________
01000
01111
00011
11111
>> is the bitwise left shift operator in binary arithmetic.
Author:
rikazzz
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OS Distributed Communication
Message passing system allows processes to __________
communicate with one another without resorting to shared data
communicate with one another by resorting to shared data
share data
name the recipient or sender of the message
Author:
rikazzz
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OS File Systems and Their Implementation
Which file is a sequence of bytes organized into blocks understandable by the system’s linker?
object file
source file
executable file
text file
Author:
rikazzz
Comment
OS Protection
What is the role of base/bound registers?
They give starting address to a program
Program’s addresses are neatly confined to space between the base and the bound registers
They provide encrypted environment
This technique doesn’t protects a program’s address from modification by another user
Author:
rikazzz
Comment
OS The Linux System
A process can never be sure that a signal it has sent _____________
has which identifier
has not been lost
has been sent
all of the mentioned
Author:
rikazzz
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