Stacks Questions

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51.

A data structure in which an element is added and removed only from one end, is known as

A

Queue

B

Stack

C

In-built structure

D

None of the above

Correct Answer: B

None.

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52.

The data structure needed to convert a recursion to an iterative procedure is ............

A

Queue

B

Graph

C

Stack

D

Tree

Correct Answer: C

None.

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53.

The prefix form of an infix expression A+B-C*D is

A

+AB-*CD

B

-+A B C * D

C

-+A B * C D

D

- + *ABCD

Correct Answer: C

None.

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54.

One can determine whether an infix expression has balanced parenthesis or not by using .............

A

Array

B

Queue

C

Stack

D

Tree

Correct Answer: C

None.

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55.

One can convert an infix expression to a postfix expression using a ..............

A

Stack

B

Queue

C

Deque

D

None of these

Correct Answer: A

None.

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56.

Which of the following types of expressions do not require precedence rules for evaluation?

A

fully parenthesised infix expression

B

postfix expression

C

partially parenthesised infix expression

D

more than one of the above

Correct Answer: A

None.

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57.

The postfix form of A ^ B * C - D + E/ F/ (G + H)

A

AB^C*D-EF/GH+/+

B

AB^CD-EP/GH+/+*

C

ABCDEFGH+//+-*^

D

AB^D +EFGH +//*+

Correct Answer: A

None.

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58.

The prefix of (A+B)*(C-D)/E*F is:

A

/+-AB*CD

B

/*+-ABCD*EF

C

*/*+AB-CDEF

D

**AB+CD/EF

Correct Answer: C

None.

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59.

Stack in Data Structure is ___________.

A

FIFO

B

LILO

C

LIFO

D

None of these

Correct Answer: C

None.

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60.

In the stack process of inserting an element in the stack is called as ___________.

A

Pop

B

Evaluation

C

Create

D

Push

Correct Answer: D

None.

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