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Operating System
1081
Computer Science Fundamentals
998
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Computer Science Fundamentals
A system of interlinked documents, websites, portals etc. accessed through the Internet.
WWW
Internet
Web
Media
World Wide Web a system of interlinked documents, websites, portals etc. accessed through the Internet. Since these links are not physical or mechanical, they are called `virtual’ links or `hyperlinks’.
Author:
rikazzz
Comment
Computer Science Fundamentals
Under DES, the data encryption standard took a 64-bit block of data and subjected it to ______ levels of encryption.
64
8
16
4
The answer is 16. It was subjected to 16 levels of encryption. DES is the data encryption standard.
Author:
rikazzz
Comment
OS File Systems and Their Implementation
In the optimized technique for sequential access ___________ removes a page from the buffer as soon as the next page is requested.
write ahead
read ahead
free-behind
add-front
Author:
rikazzz
Comment
Computer Science Fundamentals
Connecting two or more networks to form a single network is called :
Internetworking
Intranetworking
Interconnecting
Intraconnectivity
Connecting two or more networks to form a single network is called internetworking and the resultant network is called internetwork.
Author:
rikazzz
Comment
OS File Systems and Their Implementation
Consider a disk where blocks 2, 3, 4, 5, 8, 9, 10, 11, 12, 13, 17, 18, 25, 26 and 27 are free and the rest of the blocks are allocated. Then the free space bitmap would be _____________
10000110000001110011111100011111…
110000110000001110011111100011111…
01111001111110001100000011100000…
001111001111110001100000011100000…
Author:
rikazzz
Comment
OS Deadlocks
For an effective operating system, when to check for deadlock?
every time a resource request is made
at fixed time intervals
every time a resource request is made at fixed time intervals
none of the mentioned
Author:
rikazzz
Comment
OS CPU Scheduling
In the following cases non – preemptive scheduling occurs?
When a process switches from the running state to the ready state
When a process goes from the running state to the waiting state
When a process switches from the waiting state to the ready state
All of the mentioned
There is no other choice.
Author:
rikazzz
Comment
OS File Systems and Their Implementation
_______________ in NFS involves the parsing of a path name into separate directory entries – or components.
Path parse
Path name parse
Path name translation
Path name parsing
Author:
rikazzz
Comment
Computer Science Fundamentals
In ____________ mapping, the data can be mapped anywhere in the Cache Memory.
Associative
Direct
Set Associative
Indirect
This happens in the associative mapping. In this case, a block of data from the main memory can be mapped anywhere in the cache memory.
Author:
rikazzz
Comment
Computer Science Fundamentals
A box that can represent two different conditions.
Rectangle
Diamond
Circle
Parallelogram
A diamond shape box denotes either a truth value or a false value. It jumps onto two different statements following it via flow lines.
Author:
rikazzz
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