T-Level DPDD: Abstraction Quiz

What does abstraction help to achieve?

• Increase the complexity of a problem

• Focus on specific details of a problem

• Provide a general idea of the problem

• Solve the problem without any model

In an example of calculating the average age, what is considered a repeated process?

• Finding the customers' age

• Dividing the total age by the number of customers

• The count of the total age

• The number of customers

What is the process of removing or filtering characteristics that are not needed to focus on essential characteristics called?

• Encapsulation

• Inheritance

• Abstraction

• Polymorphism

What happens to the efficiency when abstraction is carried out?

• Efficiency decreases.

• Efficiency remains the same.

• Efficiency increases.

• Efficiency becomes unpredictable.

What does "Key Processes" refer to in the context of the Abstraction Layer?

• Values that will change between each use of the Abstraction Layer

• Functions that the Abstraction Layer will carry out

• Things that happen multiple times within the Abstraction Layer

• Something that is likely to remain fixed between each use of the Abstraction Layer

What is a well-known example of a constant in a system?

• The temperature taken at different times of the day

• The count of the total age

• The mathematical constant pi (π)

• The customers' information

What does abstraction in computational thinking involve?

• Hiding the complexity of something from the user

• Showing all details of the operations to the user

• Making the user perform all operations manually

• Ignoring the operations completely

Why is abstraction important?

• It simplifies complex systems by focusing on the main idea.

• It makes systems more complicated.

• It hides all details of a system.

• It increases the cost of system development.

What algorithm might a satellite navigation system use to solve the shortest path problem?

• Dijkstra's shortest path algorithm

• A* search algorithm

• Bellman-Ford algorithm

• Floyd-Warshall algorithm

Which of the following is a well-known example of abstraction?

• The Eiffel Tower

• The London Underground map

• The Great Wall of China

• The Statue of Liberty