1. Drop table cannot be used to drop a table referenced by a…….. Constraint
A. PrimaryB. CompositeC. ForeignD. None
2. ……. Specify a search condition for a group or an aggregate.
A. FROMB. WHEREC. HAVINGD. GROUP BY
3. ….is a directed tree in which out degree of each node is less than or equal to two?
A. UnaryB. BinaryC. BothD. None
4. A …… in an acyclic digraph,which has
only one node with indegree 0,and other node have indegree 1
A. UndirectedB. DirectedC. JointD. None
5. A directed graph is…………. If there is a path from each vertex to every other vertex in the digraph
A. Weakly connectedB. Strongly connectedC. Tightly connectedD. None
6. In ……traversal we process all of a vertex’s descendents before move to an adjacent vertex.
A. Depth firstB. Breadth firstC. BothD. None
7. The number of comparisons done by a sequential search
A. NB. N-1C. N-1/2D. N+1/2
8. There is an extra element at the head of the list is called ……..
A. List headB. HeaderC. SentinelD. None
9. …….. is not the operation that can be performed on queue.
A. InsertionB. DeletionC. TraversalD. Retrieval
10. In a queue the initial value of front pointer f and rear pointer r is ……and …….respectively
A. 0 and 1B. 1 and -1C. 0 and -1D. 1 and 1
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