Exploring Stacks in Data Structures

What are the primary operations of a stack?

• insert, delete, view

• The primary operations of a stack are push, pop, and peek.

• enqueue, dequeue, top

• add, remove, inspect

Explain the push operation in a stack.

• The push operation removes an element from the stack.

• The push operation checks if the stack is empty.

• The push operation retrieves the top element of the stack.

• The push operation adds an element to the top of the stack.

What is the pop operation in a stack?

• The pop operation adds an element to the stack.

• The pop operation removes the top element from a stack.

• The pop operation checks if the stack is empty.

• The pop operation retrieves the bottom element from a stack.

Describe a real-world application of stacks.

• Data encryption

• File storage management

• Task scheduling

• Web browser history management.

What is the role of stacks in backtracking algorithms?

• Stacks help manage the state and choices in backtracking algorithms, enabling systematic exploration and backtracking.

• Stacks are used to store the final results of backtracking algorithms.

• Stacks are only used for memory management in backtracking algorithms.

• Stacks are primarily for sorting elements in backtracking algorithms.

Explain how stacks are utilized in function calls.

• Stacks manage function calls by creating and removing stack frames for each call and return.

• Stacks prevent recursive function calls from occurring.

• Stacks automatically optimize memory usage for all function calls.

• Stacks are used to store global variables during function execution.

How can stacks help in undo mechanisms in software?

• Stacks store only the most recent action, not previous states.

• Stacks are used to save data permanently without any undo functionality.

• Stacks help in undo mechanisms by storing previous states or actions, enabling easy restoration of the last state when an undo is requested.

• Stacks require a complex data structure that complicates the undo process.

What is the main principle that a stack follows?

• First In, First Out (FIFO)

• Last In, First Out (LIFO)

• Random Access

• First Come, First Served

What happens when a stack is full, and a push operation is attempted?

• Stack remains unchanged

• Stack underflow

• Stack expansion

• Stack overflow

What is a stack in data structures?

• A type of queue

• A linear data structure that follows LIFO

• A linear data structure that follows FIFO

• A non-linear data structure