Stacks in Data Structures MCQ question and answer with solution

A. By using one queue to store elements and the other to reverse the order

B. By alternating between queues for push and pop

C. By using one queue for stack operations and another for temporary storage

D. By using one queue to manage the size of the stack

A. Breadth-First Search

B. Depth-First Search

C. Dijkstra's Algorithm

D. Kruskal's Algorithm

A. The stack becomes [5, 10]

B. The stack becomes [5, 10, 15]

C. The stack becomes [10, 15]

D. The stack becomes [5]

A. Evaluating expressions

B. Reversing elements

C. Implementing a breadth-first search

D. Undo operations in a text editor

A. Using an array with dynamic resizing

B. Using a linked list

C. Using a fixed-size array

D. Using a doubly linked list

A. The stack is empty

B. The stack is full

C. The stack is corrupted

D. The stack size is zero

A. Push operators onto the stack and pop them according to precedence

B. Pop operators from the stack and push them according to precedence

C. Directly append operators to the result

D. Push and pop all operands

A. Compare their sizes and elements

B. Compare their top elements only

C. Compare their sizes only

D. Compare their last elements only

A. O(1)

B. O(n)

C. O(log n)

D. O(n log n)

A. Adds an element to the top of the stack

B. Removes the top element from the stack

C. Retrieves the top element without removing it

D. Resizes the stack