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Operating System
1081
Computer Science Fundamentals
998
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OS Security
What are the different ways to classify an IDS?
anomaly detection
signature based misuse
stack based
all of the mentioned
Author:
rikazzz
Comment
OS Multimedia Systems
When will Local playback be used?
the multimedia data are delivered from a local file system
a computer next to you is playing something
a multimedia file is being played on a system in the local network
none of the mentioned
Author:
rikazzz
Comment
Computer Science Fundamentals
Which of the following is non-volatile storage?
Backup
Secondary
Primary
Cache
The secondary storage is the non-volatile storage unit because the data is not lost when the power supply is dissipated. Primary memory is the volatile memory.
Author:
rikazzz
Comment
OS The Linux System
A process having multiple threads of control implies ___________
it can do more than one task at a time
it can do only one task at a time, but much faster
it has to use only one thread per process
none of the mentioned
Author:
rikazzz
Comment
OS Security
What is the major drawback of anomaly detection IDS?
These are very slow at detection
It generates many false alarms
It doesn’t detect novel attacks
None of the mentioned
Author:
rikazzz
Comment
OS Mass-Storage Structures
If a process needs I/O to or from a disk, and if the drive or controller is busy then ____________
the request will be placed in the queue of pending requests for that drive
the request will not be processed and will be ignored completely
the request will be not be placed
none of the mentioned
Author:
rikazzz
Comment
Computer Science Fundamentals
Which of the following is not a bitwise operator?
|
^
.
<<
All except the dot(.) operator are bitwise operators. | : Bitwise OR ^ : Bitwise XOR << : Shift
Author:
rikazzz
Comment
OS File Systems and Their Implementation
The operating system _______ the links when traversing directory trees, to preserve the acyclic structure of the system.
considers
ignores
deletes
none of the mentioned
Author:
rikazzz
Comment
OS File Systems and Their Implementation
A file being read or written sequentially should not have its pages replaced in LRU order, because _____________
it is very costly
the most recently used page will be used last
it is not efficient
all of the mentioned
Author:
rikazzz
Comment
OS Process Synchronization
What is a semaphore?
is a binary mutex
must be accessed from only one process
can be accessed from multiple processes
none of the mentioned
Author:
rikazzz
Comment
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