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### IT SPECIALIST OFFICER EXPECTED QUESTIONS | SET 5 Solved

#### 1. Drop table cannot be used to drop a table  referenced by a…….. Constraint

A.      Primary
B.      Composite
C.      Foreign
D.      None

A.      FROM
B.      WHERE
C.      HAVING
D.      GROUP BY

#### 3. ….is a directed tree in which out degree of each node is less than or equal to two?

A.      Unary
B.      Binary
C.      Both
D.      None

4. A …… in an acyclic digraph,which has only one node with indegree 0,and other node have indegree 1

A.      Undirected
B.      Directed
C.      Joint
D.      None

#### 5. A directed graph is…………. If there is  a path from each  vertex to every other vertex in the digraph

A.      Weakly connected
B.      Strongly connected
C.      Tightly connected
D.      None

#### 6. In ……traversal we process all of a vertex’s descendents before move to an adjacent vertex.

A.      Depth first
C.      Both
D.      None

A.      N
B.      N-1
C.      N-1/2
D.      N+1/2

C.      Sentinel
D.      None

#### 9. …….. is not the operation that can be performed on queue.

A.      Insertion
B.      Deletion
C.      Traversal
D.      Retrieval

A.      0 and 1
B.      1 and -1
C.      0 and -1
D.      1 and 1