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Operating System
1081
Computer Science Fundamentals
998
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OS File Systems and Their Implementation
When two users keep a subdirectory in their own directories, the structure being referred to is _____________
tree structure
cyclic graph directory structure
two level directory structure
acyclic graph directory
Author:
rikazzz
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OS Security
The time for the disk arm to move the heads to the cylinder containing the desired sector is called ___________
disk time
seek time
arm time
sector time
Author:
rikazzz
Comment
Computer Science Fundamentals
Which of the following is not a write policy to avoid Cache Coherence?
Write through
Write within
Write back
Buffered write
There is no policy which is called as the write within policy. The other three options are the write policies which are used to avoid cache coherence.
Author:
rikazzz
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OS Deadlocks
If no cycle exists in the resource allocation graph ____________
then the system will not be in a safe state
then the system will be in a safe state
all of the mentioned
none of the mentioned
Author:
rikazzz
Comment
Computer Science Fundamentals
______________ is done in the development phase by the developers.
Deployment
Debugging
Verification
Validation
Debugging is done in the development phase by the developer. In development phase developer fixes the bug (i.e) called debugging.
Author:
rikazzz
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OS Process Synchronization
What are the two atomic operations permissible on semaphores?
wait
stop
hold
none of the mentioned
Author:
rikazzz
Comment
OS Processes
The primary distinction between the short term scheduler and the long term scheduler is __________
The length of their queues
The type of processes they schedule
The frequency of their execution
None of the mentioned
The primary distinction between the short-term scheduler and long-term scheduler is the frequency of their execution. Short-term scheduler executes frequently while long-term scheduler executes much less frequently.
Author:
rikazzz
Comment
Computer Science Fundamentals
Java extension used in threads?
java.lang.Thread
java.language.Thread
java.lang.Threads
java.Thread
java.lang.Thread is the class that is extended if any user wants to extend threads.
Author:
rikazzz
Comment
Computer Science Fundamentals
A technique that allocates time slots dynamically.
TDM
WDM
Dynamic TDM
Statistical TDM
Statistical TDM assigns time slots dynamically. They are allocated based on demand. Multiplexer scans input lines and collects data until the frame is full.
Author:
rikazzz
Comment
Computer Science Fundamentals
Which of the following plane is used for 2D transformations?
Three-dimensional plane
Two-dimensional plane
One-dimensional plane
Four-dimensional Plane
A two-dimensional plane is used for 2D transformations. Transformations are useful for modifying an object’s position, size, orientation, and shape, among other things.
Author:
rikazzz
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