# Data Structure Questions and Answers-Stack Operations

## Data Structure Questions and Answers-Stack Operations

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 Question 6 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER]
Which data structure is needed to convert infix notation to postfix notation?
 A Branch B Tree C Queue D Stack
Question 6 Explanation:
None.

 Question 7 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER]
The prefix form of A-B/ (C * D ^ E) is?
 A -/*^ACBDE B -ABCD*^DE C -A/B*C^DE D -A/BC*^DE
Question 7 Explanation:
Applying the prefix expression evaluation.

 Question 8 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER]
What is the result of the following operation

Top (Push (S, X))

 A X B Null C S D None of the mentioned
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 Question 9 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER]
The prefix form of an infix expression p + q - r * t is?
 A + pq - *rt B - +pqr * t C - +pq * rt D - + * pqrt
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Question 9 Explanation:
Applying the prefix expression evaluation.

 Question 10 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER]
Which data structure is used for implementing recursion?
 A Queue B Stack C Array D List