Solved MCQ on Stack and Queue in Data Structure set-1

1) ......... form of access is used to add and remove nodes from a queue.

A. LIFO, Last In First Out

B. FIFO, First In First Out

C. Both a and b

D. None of these

2) In liked representation of stack ....... holds the elements of the stack.

A. INFO fields

B. TOP fields

C. LINK fields

D. NULL fields

3) ........ form of access is used to add remove nodes from a stack.

A. LIFO

B. FIFO

C. Both A and B

D. None of these

4) In the linked representation of the stack ......... behaves as the top pointer variable of stack.

A. Stop pointer

B. Begin pointer

C. Start pointer

D. Avail pointer

5) New nodes are added to the ......... of the queue.

A. Front

B. Back

C. Middle

D. Both A and B

6) In linked representation of stack the null pointer of the last node in the list signals ..........

A. Beginning of the stack

B. Bottom of the stack

C. Middle of the stack

D. In between some value

7) What happens when you push a new node onto a stack?

A. The new node is placed at the front of the linked list

B. The new node is placed at the back of the linked list

C. The new node is placed at the middle of the linked list

D. No Changes happens

8) A queue is a .........

A. FIFO

B. LIFO

C. FILO

D. LOFI

9) Which of the following name does not relate to stacks?

A. FIFO lists

B. LIFO lists

C. Piles

D. Push down lists

10) The retrieval of items in a stack is ........... operation.

A. push

B. pop

C. retrieval

D. access

11) The term push and pop is related to

A. Array

B. Lists

C. Stacks

D. Trees

12) Which is the pointer associated with the stack?

A. FIRST

B. FRONT

C. TOP

D. REAR

13) The elements are removal from a stack in .......... order.

A. Reverse

B. Hierarchical

C. Alternative

D. Sequential

14) The insertion operation in the stack is called .........

A. insert

B. push

C. pop

D. top

15) ...... is the term used to insert an element into stack.

A. Push

B. Pull

C. Pop

D. Pump

16) Stack follows the strategy of ........

A. LIFO

B. FIFO

C. LRU

D. RANDOM

17) .......... is the term used to delete an element from the stack.

A. Push

B. Pull

C. Pop

D. Pump

18) Deletion operation is done using ......... in a queue.

A. front

B. rear

C. top

D. list

19) A pointer variable which contains the location at the top element of the stack is called .....

A. Top

B. Last

C. Final

D. End

20) Which of the following is an application of stack?

A. finding factorial

B. tower of Hanoi

C. infix to postfix

D. all of the above

Answers:

1) B. FIFO, First In First Out
2) A. INFO fields
3) A. LIFO
4) C. Start pointer
5) B. Back
6) B. Bottom of the stack
7) A. The new node is placed at the front of the linked list
8) A. FIFO
9) A. FIFO lists
10) B. pop
11) C. Stacks
12) C. TOP
13) A. Reverse
14) B. push
15) A. Push
16) A. LIFO
17) C. Pop
18) A. front
19) A. Top
20) D. all of the above

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