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Operating System
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Operating System
- Page 23
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 Real Time Operating Systems(RTOS)
In a ______ real time system, it is guaranteed that critical real time tasks will be completed within their deadlines.
soft
hard
critical
none of the mentioned
Author:
rikazzz
Comment
OS The Linux System
Using a pager ____________
increases the swap time
decreases the swap time
decreases the swap time & amount of physical memory needed
increases the amount of physical memory needed
Author:
rikazzz
Comment
OS File Systems and Their Implementation
In a tree structure, when deleting a directory that is not empty?
The contents of the directory are safe
The contents of the directory are also deleted
contents of the directory are not deleted
none of the mentioned
Author:
rikazzz
Comment
OS Process Synchronization
The state of the data accessed by an aborted transaction must be restored to what it was just before the transaction started executing. This restoration is known as ________ of transaction.
safety
protection
roll – back
revert – back
Author:
rikazzz
Comment
OS Processes
Which one of the following error will be handle by the operating system?
power failure
lack of paper in printer
connection failure in the network
all of the mentioned
All the mentioned errors are handled by OS. The OS is continuously monitoring all of its resources. Also, the OS is constantly detecting and correcting errors.
Author:
rikazzz
Comment
OS Protection
The protection domain of a process contains _____________
object name
rights-set
both object name and rights-set
none of the mentioned
Author:
rikazzz
Comment
OS Processes
What is the degree of multiprogramming?
the number of processes executed per unit time
the number of processes in the ready queue
the number of processes in the I/O queue
the number of processes in memory
Multiprogramming means the number of processes are in the ready states. To increase utilization of CPU, Multiprogramming is one of the most important abilities of OS. Generally, a single process cannot use CPU or I/O at all time, whenever CPU or I/O is available another process can use it. By doing this CPU utilization is increased.
Author:
rikazzz
Comment
OS Distributed File Systems
What is not true about a distributed system?
It is a collection of processor
All processors are synchronized
They do not share memory
None of the mentioned
Author:
rikazzz
Comment
OS Distributed File Systems
What are the characteristics of processor in distributed system?
They vary in size and function
They are same in size and function
They are manufactured with single purpose
They are real-time devices
Author:
rikazzz
Comment
OS Mass-Storage Structures
The device-status table contains ____________
each I/O device type
each I/O device address
each I/O device state
all of the mentioned
Author:
rikazzz
Comment
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