Data Structure Objective Questions and Answers Pdf - 1
Question: 1
Which of the following data structure is more appropriate to represent a heap?
(A) Two-dimensional array
(B) Doubly linked list
(C) Linear Array
(D) Linked list
Ans: C
Linear Array
Question: 2
Minimum number of fields in each node of a doubly linked list is ____
(A) 2
(B) 3
(C) 4
(D) None of the above
Ans: B
3
Question: 3
A graph in which all vertices have equal degree is known as ____
(A) Complete graph
(B) Regular graph
(C) Multi graph
(D) Simple graph
Ans: A
Complete graph
Question: 4
A vertex of in-degree zero in a directed graph is called a/an
(A) Root vertex
(B) Isolated vertex
(C) Sink
(D) Articulation point
Ans: C
Sink
Question: 5
A graph is a tree if and only if graph is
(A) Directed graph
(B) Contains no cycles
(C) Planar
(D) Completely connected
Ans: B
Contains no cycles
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