Data Abstraction Quiz

What is data abstraction?

• A technique for compressing data

• A way to encrypt data for security

• A method of storing data in a database

• A process of hiding implementation details and exposing only necessary aspects

Which of the following is NOT a way data abstraction is commonly achieved?

• Encapsulation

• Data Encryption

• Data Structures

• Classes

In the movie recommendation system example, what data structure is used to represent movies?

• List of dictionaries

• Set of tuples

• Array of strings

• Queue of objects

What does data abstraction separate?

• The data from the user

• The code from the compiler

• The what (interface) from the how (implementation)

• The input from the output

Why is data abstraction important?

• It makes data more complex

• It increases the size of the program

• It reduces the speed of execution

• It simplifies code and hides unnecessary complexity

Which of the following is an example of encapsulation?

• Compressing data to save space

• Combining data and operations into a single unit

• Storing data in a cloud server

• Encrypting data for security

What is a real-world analogy for data abstraction?

• A computer monitor

• A car engine

• A book

• A remote control

What aspect of a remote control represents the interface in data abstraction?

• The circuit board

• Buttons for volume, power, and channels

• The battery compartment

• The infrared signals

How does data abstraction improve reusability?

• By increasing the complexity of the data

• By making the code longer

• By allowing the same abstraction to be reused in different parts of the program

• By reducing the number of functions

What does data abstraction enhance in terms of software development?

• Maintainability

• Execution time

• Data size

• User interface design