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Operating System
1081
Computer Science Fundamentals
998
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OS Security
What is are two safe computing practices?
Not to open software from unknown vendors
Open and execute programs in admin level/root
Open and execute programs in presence of antivirus
None of the mentioned
Disgruntled employees have in past infected the master copies of software programs to do economic harm to the company.
Author:
rikazzz
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OS Memory Management
What is compaction?
a technique for overcoming internal fragmentation
a paging technique
a technique for overcoming external fragmentation
a technique for overcoming fatal error
Author:
rikazzz
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Important Abbreviations
RAID stands for:
Redundant Allocation of Inexpensive Disks
Redundant Array of Important Disks
Redundant Allocation of Independent Disks
Redundant Array of Independent Disks
Author:
rikazzz
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OS File Systems and Their Implementation
What if a pointer is lost or damaged in a linked allocation?
the entire file could get damaged
only a part of the file would be affected
there would not be any problems
none of the mentioned
Author:
rikazzz
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Computer Science Fundamentals
In a spreadsheet, letters are used to represent _____________
Cells
Rows
Columns
Blocks
In any spreadsheet, the letters are used to represent columns. The numbers are used to represent rows.
Author:
rikazzz
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Computer Science Fundamentals
The typical value of data transfer rate is __________
7.7 MB/s
6.6 MB/s
5.5 MB/s
10 MB/s
Data transfer rate is defined as the number of characters per second that can be transmitted to the memory from tape. The typical value is 7.7 megabytes per second.
Author:
rikazzz
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Computer Science Fundamentals
WTLS stands for?
Wireless Transport Security Layer
Wireless Transfer System Layer
Wireless Transfer Security Layer
Wireless Transport System Layer
WTLS is Wireless Transport Security Layer. It provides security between the mobile device and the WAP gateway to internet.
Author:
rikazzz
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Computer Science Fundamentals
The hexadecimal representation of 14 is _______________
A
F
D
E
The hexadecimal representations are as follows:
Author:
rikazzz
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OS The Linux System
If no frames are free, _____ page transfer(s) is/are required.
one
two
three
four
Author:
rikazzz
Comment
Computer Science Fundamentals
An interface that is implemented while using threads.
java.lang.Run
java.lang.Runnable
java.lang.Thread
java.lang.Threads
java.lang.Runnable is correct. Any thread class implements runnable.
Author:
rikazzz
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