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Operating System
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OS Processes
43
OS Distributed Communication
49
OS CPU Scheduling
42
OS Process Synchronization
58
OS Deadlocks
53
OS Memory Management
93
OS I/O Systems
35
OS Real Time Operating Systems(RTOS)
46
OS Multimedia Systems
63
OS Security
72
OS The Linux System
145
OS File Systems and Their Implementation
152
OS Mass-Storage Structures
84
OS Protection
58
OS Distributed File Systems
88
Show/Hide Answers
OS Mass-Storage Structures
A single parity bit can be used for ____________
detection
multiple error corrections
few error corrections
all of the mentioned
Author:
rikazzz
Comment
OS Process Synchronization
A terminated transaction that has completed its execution successfully is ____________ otherwise it is __________
committed, destroyed
aborted, destroyed
committed, aborted
none of the mentioned
Author:
rikazzz
Comment
OS Processes
When the process issues an I/O request __________
It is placed in an I/O queue
It is placed in a waiting queue
It is placed in the ready queue
It is placed in the Job queue
When the process issues an I/O request it is placed in an I/O queue. I/O is a resource and it should be used effectively and every process should get access to it. There might be multiple processes which requested for I/O. Depending on scheduling algorithm I/O is allocated to any particular process and after completing I/O operation, I/O access is returned to the OS.
Author:
rikazzz
Comment
OS Mass-Storage Structures
SSTF algorithm, like SJF __________ of some requests.
may cause starvation
will cause starvation
does not cause starvation
causes aging
Author:
rikazzz
Comment
OS Process Synchronization
A situation where several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which access takes place is called ____________
data consistency
race condition
aging
starvation
Author:
rikazzz
Comment
OS CPU Scheduling
There are 10 different processes running on a workstation. Idle processes are waiting for an input event in the input queue. Busy processes are scheduled with the Round-Robin time sharing method. Which out of the following quantum times is the best value for small response times, if the processes have a short runtime, e.g. less than 10ms?
tQ = 15ms
tQ = 40ms
tQ = 45ms
tQ = 50ms
Author:
rikazzz
Comment
OS Security
From the following, which is not a common file permission?
Write
Execute
Stop
Read
Author:
rikazzz
Comment
OS Multimedia Systems
Lossy and lossless are classifications of ___________
multimedia storage systems
files
compression algorithms
all of the mentioned
Author:
rikazzz
Comment
OS File Systems and Their Implementation
Which of the following are the types of Path names?
absolute & relative
local & global
global & relative
relative & local
Author:
rikazzz
Comment
OS Security
What is theft of service?
This type of violation involves unauthorized reading of data
This violation involves unauthorized modification of data
This violation involves unauthorized destruction of data
This violation involves unauthorized use of resources
Author:
rikazzz
Comment
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