Skip to content
MCQtimes.com
GK
Pakistan Studies
Current Affairs
Islamic Studies
English
MCQtimes.com
Toggle Menu
Computer Science
Home
/
Computer Science
- Page 117
Operating System
1081
Computer Science Fundamentals
998
Show/Hide Answers
Computer Science Fundamentals
A concern of authentication that deals with user rights.
General access
Functional authentication
Functional authorization
Auto verification
Functional authorization is concerned with individual user rights. Authorization is the function of specifying access rights to resources related to information security.
Author:
rikazzz
Comment
OS File Systems and Their Implementation
A mount operation includes the _____________
name of the network
name of the remote directory to be mounted
name of the server machine storing it
all of the mentioned
Author:
rikazzz
Comment
OS Processes
The only state transition that is initiated by the user process itself is __________
block
wakeup
dispatch
none of the mentioned
The only state transition that is initiated by the user process itself is block. Whenever a user process initiates an I/O request it goes into block state unless and until the I/O request is not completed.
Author:
rikazzz
Comment
OS Security
Which happens first authorization or authentication?
Authorization
Authentication
Authorization & Authentication are same
None of the mentioned
Author:
rikazzz
Comment
Computer Science Fundamentals
Which of the following is not an open source software?
LibreOffice
Microsoft Office
GNU image manipulation
MySQL
MS-office is not open source software since its source code isn’t shared publicly. Others like Libre office, MySQL are open source softwares through which is distributed along with its source code.
Author:
rikazzz
Comment
OS Memory Management
The operating system maintains a ______ table that keeps track of how many frames have been allocated, how many are there, and how many are available.
page
mapping
frame
memory
Author:
rikazzz
Comment
OS The Linux System
A process refers to 5 pages, A, B, C, D, E in the order : A, B, C, D, A, B, E, A, B, C, D, E. If the page replacement algorithm is FIFO, the number of page transfers with an empty internal store of 3 frames is?
8
10
9
7
Author:
rikazzz
Comment
OS File Systems and Their Implementation
For every pair of component and directory vnode after path name translation ____________
a single NFS lookup call is used sequentially
a single NFS lookup call is used beginning from the last component
at least two NFS lookup calls per component are performed
a separate NFS lookup call is performed
Author:
rikazzz
Comment
OS Memory Management
In a paged memory, the page hit ratio is 0.35. The required to access a page in secondary memory is equal to 100 ns. The time required to access a page in primary memory is 10 ns. The average time required to access a page is?
3.0 ns
68.0 ns
68.5 ns
78.5 ns
Author:
rikazzz
Comment
OS Deadlocks
The wait-for graph is a deadlock detection algorithm that is applicable when ____________
all resources have a single instance
all resources have multiple instances
all resources have a single 7 multiple instances
all of the mentioned
Author:
rikazzz
Comment
Page navigation
Previous Page
Previous
1
…
115
116
117
118
119
…
208
Next Page
Next
Go to Page
Light
Dark
GK
Pakistan Studies
Current Affairs
Islamic Studies
English