Database Management Systems Mcqs

Page No. 52

A condition is referred to as __________


aJoin in SQL


bJoin condition


cJoin in SQL & Condition


dNone of the mentioned


View Answer Join condition

A_____ is a query that retrieves rows from more than one table or view:


aStart


bEnd


cJoin


dAll of the mentioned


View Answer Join

The complexity of Bubble sort algorithm is


aO(n)


bO(log n)


cO(n2)


dO(n log n)


View Answer O(n2)

The complexity of Binary search algorithm is


aO(n)


bO(log )


cO(n2)


dO(n log n)


View Answer O(log )

The complexity of a linear search algorithm is


aO(n)


bO(log n)


cO(n2)


dO(n log n)


View Answer O(n)

The complexity of the average case of an algorithm is


aMuch more complicated to analyze than that of worst case


bMuch more simpler to analyze than that of worst case


cSometimes more complicated and some other times simpler than that of worst case


dNone of the mentioned



The Average case occur in linear search algorithm


aWhen Item is somewhere in the middle of the array


bWhen Item is not in the array at all


cWhen Item is the last element in the array


dWhen Item is the last element in the array or is not there at all



The Worst case occur in linear search algorithm when


aItem is somewhere in the middle of the array


bItem is not in the array at all


cItem is the last element in the array


dItem is the last element in the array or is not there at all



Which of the following case does not exist in complexity theory


aBest case


bWorst case


cAverage case


dNull case


View Answer Null case

The space factor when determining the efficiency of an algorithm is measured by


aCounting the maximum memory needed by the algorithm


bCounting the minimum memory needed by the algorithm


cCounting the average memory needed by the algorithm


dCounting the maximum disk space needed by the algorithm



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