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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
RAID level _______ refers to disk mirroring.
0
1
2
3
Author:
rikazzz
Comment
OS Distributed Communication
In the Zero capacity queue __________
the queue can store at least one message
the sender blocks until the receiver receives the message
the sender keeps sending and the messages don’t wait in the queue
none of the mentioned
Author:
rikazzz
Comment
OS Mass-Storage Structures
Where performance and reliability are both important, RAID level ____ is used.
0
1
2
0+1
Author:
rikazzz
Comment
OS Memory Management
Another solution to the problem of external fragmentation problem is to ____________
permit the logical address space of a process to be noncontiguous
permit smaller processes to be allocated memory at last
permit larger processes to be allocated memory at last
all of the mentioned
Author:
rikazzz
Comment
OS Processes
Which one of the following is not true?
kernel is the program that constitutes the central core of the operating system
kernel is the first part of operating system to load into memory during booting
kernel is made of various modules which can not be loaded in running operating system
kernel remains in the memory during the entire computer session
Kernel is the first program which is loaded in memory when OS is loading as well as it remains in memory till OS is running. Kernel is the core part of the OS which is responsible for managing resources, allowing multiple processes to use the resources and provide services to various processes. Kernel modules can be loaded and unloaded in run-time i.e. in running OS.
Author:
rikazzz
Comment
OS File Systems and Their Implementation
What is a circular buffer?
writes to the end of its space and then continues at the beginning
overwrites older values as it goes
all of the mentioned
none of the mentioned
Author:
rikazzz
Comment
OS Mass-Storage Structures
A large number of disks in a system improves the rate at which data can be read or written if ____________
the disks are operated on sequentially
the disks are operated on selectively
the disks are operated in parallel
all of the mentioned
Author:
rikazzz
Comment
OS Protection
What is Domain?
Domain = Set of all objects
It is a collection of protection policies
Domain= set of access-rights
None of the mentioned
Author:
rikazzz
Comment
OS Processes
Which of the following does not interrupt a running process?
A device
Timer
Scheduler process
Power failure
Scheduler process does not interrupt a running process. Scheduler process selects an available process from a pool of available processes and allocates CPU to it.
Author:
rikazzz
Comment
OS Mass-Storage Structures
Random access to tape is _______ a disk seek.
much slower than
much faster than
comparable to
none of the mentioned
Author:
rikazzz
Comment
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