Data Structures: Stacks and Queues

What is the primary focus of this video in the series?

• Database management

• Data structures: Stacks and Queues

• Graph theory

• Sorting algorithms

Which operation is used to add an item to a stack?

• Push

• Enqueue

• Dequeue

• Pop

Before adding an item to a stack, what must you check?

• If the stack has an even number of items

• If the stack is sorted

• If the stack is full

• If the stack is empty

What is the operation called when adding an item to the back of a queue?

• Enqueue

• Pop

• Push

• Dequeue

What is the first step when removing an item from a stack?

• Decrement the stack pointer

• Increment the stack pointer

• Check if the stack is full

• Check if the stack is empty

What operation is used to remove an item from the front of a queue?

• Dequeue

• Enqueue

• Pop

• Push

What is the purpose of the 'peak' operation in stacks and queues?

• To remove an item

• To sort the items

• To add an item

• To look at the top or front item without altering it

What are the three primary operations supported by classic implementations of stacks and queues?

• Enqueue, Dequeue, and Sort

• Add, Remove, and Traverse

• Push, Pop, and Peak

• Insert, Delete, and Update

What is the main difference between implementation and abstraction in data structures?

• Abstraction defines the operations, implementation defines the data

• Implementation defines the operations, abstraction defines the data

• Abstraction is about adding functionality, implementation is about defining required operations

• Implementation is about adding functionality, abstraction is about defining required operations

What does the video suggest about adding additional operations to stacks and queues?

• It is allowed and does not change the data structure

• It is allowed but changes the data structure

• It is not allowed

• It is allowed but only in object-oriented programming