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Operating System
1081
Computer Science Fundamentals
998
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OS The Linux System
Users _______ that their processes are running on a paged system.
are aware
are unaware
may unaware
none of the mentioned
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rikazzz
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OS Memory Management
Paging increases the ______ time.
waiting
execution
context – switch
all of the mentioned
Author:
rikazzz
Comment
Computer Science Fundamentals
ABC is a valid hexadecimal number.
True
False
In a hexadecimal number system, alphabets are used for the representation of numbers from 10 to 15. Here, A represents 10, B represents 11 and C represents 12. Therefore, it is a valid hexadecimal number.
Author:
rikazzz
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Computer Science Fundamentals
Which of the following is a myth in testing?
Tester can find bugs
Any user can test software
Missed defects are not due to testers
Complete testing is not possible
Any user can test software is a myth. Anyone cannot test the software. A person who has no knowledge cannot test the software.
Author:
rikazzz
Comment
OS Protection
What is ‘separation’ in security of Operating systems?
To have separate login for different users
To have separate Hard disk drive/partition for different users
It means keeping one user’s objects separate from other users
None of the mentioned
Author:
rikazzz
Comment
Computer Science Fundamentals
The expression of an EXOR gate is ____________
A’B+AB’
AB+A’B’
A+A.B
A’+B’
The expression for an EXOR gate is A’B+AB’.
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rikazzz
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OS The Linux System
_________ replacement allows a process to select a replacement frame from the set of all frames, even if the frame is currently allocated to some other process.
Local
Universal
Global
Public
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rikazzz
Comment
OS Process Synchronization
The monitor construct ensures that ____________
only one process can be active at a time within the monitor
n number of processes can be active at a time within the monitor (n being greater than 1)
the queue has only one process in it at a time
all of the mentioned
Author:
rikazzz
Comment
OS File Systems and Their Implementation
The direct access method is based on a ______ model of a file, as _____ allow random access to any file block.
magnetic tape, magnetic tapes
tape, tapes
disk, disks
all of the mentioned
Author:
rikazzz
Comment
OS Distributed File Systems
What are the types of distributed operating system?
Network Operating system
Zone based Operating system
Level based Operating system
All of the mentioned
Author:
rikazzz
Comment
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