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Questions by MiNiPanda

1 votes
1 answer
32
Memory management
When some pages are referred more number of time, initially and then there were no references later, then which of the following page replacement technique will result in more number of faults? A) LFU B) MFU C) LRU D) MRU
When some pages are referred more number of time, initially and then there were no references later, then which of the following page replacement technique will result in...
2 votes
0 answers
35
IP addressing
The data link layer provides the host or Mac address. Network layer comes before data link layer at the sender side of OSI reference model. Then how can network layer can do Ip addressing which includes network as well as the host address?
The data link layer provides the host or Mac address. Network layer comes before data link layer at the sender side of OSI reference model. Then how can network layer can...
4 votes
1 answer
36
Pure Aloha and Slotted Aloha
It am not getting the concept of vulnerable time. The frames are of same size so Tx is same and they propagate with same speed. If two objects are moving in the same direction with same constant speed then how can they collide?
It am not getting the concept of vulnerable time. The frames are of same size so Tx is same and they propagate with same speed. If two objects are moving in the same dire...
3 votes
1 answer
38
Error control in data link layer
Is there any restriction on CRC value like can it be equal to 0?
Is there any restriction on CRC value like can it be equal to 0?
1 votes
1 answer
40
SQL Query
Select operation in SQL is a a) Data query language b) Data definition language c) Data manipulation language d) Data control language Confused between option a) and option c) .
Select operation in SQL is aa) Data query language b) Data definition languagec) Data manipulation language d) Data control languageConfused between option a) and option ...
2 votes
1 answer
41
Normalisation
It is said that if a relation is in bcnf then it is also in 3nf. Then why a lossless and non-dependency preserving decomposition qualifies to be in bcnf but not in 3nf. I am not getting it. Please clear my concept.
It is said that if a relation is in bcnf then it is also in 3nf. Then why a lossless and non-dependency preserving decomposition qualifies to be in bcnf but not in 3nf. I...
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