Stacks Questions

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11.

What data structure can be used to check if a syntax has balanced parenthesis ?

A

queue

B

tree

C

list

D

stack

Correct Answer: D

None.

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12.

Stack is also called as

A

Last in first out

B

First in last out

C

Last in last out

D

First in first out

Correct Answer: A

None.

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13.

Inserting an item into the stack when stack is not full is called

A

push, pop

B

pop, push

C

insert, delete

D

delete, insert

Correct Answer: A

None.

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14.

What will be the value of top, if there is a size of stack STACK_SIZE is 5

A

5

B

6

C

4

D

None of the above

Correct Answer: C

None.

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15.

Which is/are the application(s) of stack

A

Function calls

B

Large number Arithmetic

C

Evaluation of arithmetic expressions

D

All of the above

Correct Answer: D

None.

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16.

When does top value of the stack changes?

A

Before deletion

B

While checking underflow

C

At the time of deletion

D

After deletion

Correct Answer: D

None.

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17.

Which of the following is an application of stack?

A

finding factorial

B

tower of Hanoi

C

infix to postfix conversion

D

all of the above

Correct Answer: D

None.

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18.

Which of the following name does not relate to stacks?

A

FIFO lists

B

LIFO list

C

Piles

D

Push-down lists

Correct Answer: A

None.

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19.

The term "push" and "pop" is related to the

A

array

B

lists

C

stacks

D

all of above

Correct Answer: C

None.

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20.

The postfix form of the expression (A + B)∗(C∗D − E)∗F / G is

A

AB + CD∗E − FG /∗∗

B

/ AB + CD ∗ E − F ∗∗G /

C

AB + CD ∗ E − ∗F ∗ G /

D

AB + CDE ∗ − ∗ F ∗ G /

Correct Answer: A

None.

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