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Q1. To represent hierarchical relationship between elements, which data structure is suitable?
(A) Deque
(B) Priority
(C) Tree
(D) Graph
Answer: (C) Tree
Q2. In a queue, the initial values of front pointer f rare pointer r should be and _ respectively.
(A) 0 and 1
(B) 0 and -1
(C) -1 and 0
(D) 1 and 0
Answer: (B) 0 and -1
Q3. In general, the binary search method needs no more than __ comparisons.
(A) [log2n] – 1
(B) [logn] + 1
(C) [log2n]
(D) [log2n] +1
Answer: (D) [log2n] +1
Q4. Which of the following is non-liner data structure?
(A) Stacks
(B) List
(C) Strings
(D) Trees
Answer: (D) Trees
Q5. In a circular queue, the value of r will be __
(A) r = r + 1
(B) r = (r + 1)% [QUEUE_SIZE – 1]
(C) r=( r + 1)% QUEUE_SIZE
(D) r=(r – 1)% QUEUE_SIZE
Answer: (C) r=( r + 1)% QUEUE_SIZE
Q6. In the _ traversal we process all of a vertex’s descendants before we move to an adjacent vertex.
(A) Depth First
(B) Breadth First
(C) With First
(D) Depth Limited
Answer: (A) Depth First
Q7. When new data are to be inserted into a data structure, but there is not available space; this situation is usually called __
(A) Underflow
(B) Overflow
(C) Houseful
(D) Saturated
Answer: (B) Overflow
Q8. The number of comparisons done by sequential search is __
(A) (N/2)+1
(B) (N+1)/2
(C) (N-1)/2
(D) (N+2)/2
Answer: (B) (N+1)/2
Q9. Arrays are best data structures _
(A) For relatively permanent collections of data
(B) For the size of the structure and the data in the structure are constantly changing
(C) For both of above situation
(D) For none of the above
Answer: (A) For relatively permanent collections of data
Q10. _ level is where the model becomes compatible executable code
(A) Abstract level
(B) Application level
(C) Implementation level
(D) All of the above
Answer: (C) Implementation level
Data Structures and Algorithms MCQ – All Set
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