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Operating System
1081
Computer Science Fundamentals
998
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OS Distributed Communication
To differentiate the many network services a system supports ______ are used.
Variables
Sockets
Ports
Service names
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OS Real Time Operating Systems(RTOS)
In which scheduling certain amount of CPU time is allocated to each process?
earliest deadline first scheduling
proportional share scheduling
equal share scheduling
none of the mentioned
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Computer Science Fundamentals
A person who enjoys learning details about computers and how to enhance their capabilities.
Cracker
Hacker
App controller
Site controller
The person is called hacker. A person who enjoys learning the details of computer systems and how to stretch their capabilities is called hacker.
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rikazzz
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Computer Science Fundamentals
The representation of the number 8 in binary in ASCII-8 format _________
00111000
01001000
1000
00011000
The ASCII-8 format will have 8 bits. The zone for the character 8 is 0011 and the digit is 1000. Therefore, its representation is 00111000.
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OS Memory Management
If a higher priority process arrives and wants service, the memory manager can swap out the lower priority process to execute the higher priority process. When the higher priority process finishes, the lower priority process is swapped back in and continues execution. This variant of swapping is sometimes called?
priority swapping
pull out, push in
roll out, roll in
none of the mentioned
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rikazzz
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Computer Science Fundamentals
A piece of information which is sent along with the data to the source computer.
data
module
token
element
Token is the information that is sent to the source computer along with the data. This token is then passed to the next node.
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rikazzz
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OS Deadlocks
For Mutual exclusion to prevail in the system ____________
at least one resource must be held in a non sharable mode
the processor must be a uniprocessor rather than a multiprocessor
there must be at least one resource in a sharable mode
all of the mentioned
If another process requests that resource (non – shareable resource), the requesting process must be delayed until the resource has been released.
Author:
rikazzz
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OS Processes
What is a short-term scheduler?
It selects which process has to be brought into the ready queue
It selects which process has to be executed next and allocates CPU
It selects which process to remove from memory by swapping
None of the mentioned
A short-term scheduler selects a process which has to be executed next and allocates CPU. Short-term scheduler selects a process from the ready queue. It selects processes frequently.
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rikazzz
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OS File Systems and Their Implementation
A file control block contains the information about ____________
file ownership
file permissions
location of file contents
all of the mentioned
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rikazzz
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OS Memory Management
If relocation is static and is done at assembly or load time, compaction _________
cannot be done
must be done
must not be done
can be done
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rikazzz
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