Stack

Accessing top Element in stack is constant time Operation

• TRUE

• FALSE

Only top element can be accessed in stack

• TRUE

• FALSE

Stacks have LIFO ordering

• TRUE

• FALSE

Nested function calls form a stack

• TRUE

• FALSE

Which of them is an abstract data structure (ADT)?

• A) Stacks

• B) Queues

• Both A and C

• C) Functions

LIFO stands for

• Last in First Out

• First in Last Out

• List of Outputs

• None of them

Act of adding values into a stack is called

• Popping

• Pushing

• Polling

• None

Which of the following statement(s) about stack data structure is/are NOT correct?

• Stack data structure can be implemented using linked list

• New node can only be added at the top of the stack

• The last node at the bottom of the stack has a NULL link

  HIDE ANSWER

• Stack is the FIFO data structure

If the elements “A”, “B”, “D” and “C” are placed in a stack and are deleted one at a time, in what order will they be removed?

• ABCD

• ABDC

• CDBA

• DCAB

Consider the following operation performed on a stack of size 5.

Push(1);

Pop();

Push(2);

Push(3);

Pop();

Push(4);

Pop();

Pop();

Push(5);

After the completion of all operation, the no of element present on stack are

• 1

• 3

• 2

• 4