APCSP Abstraction Concepts 2

Question 1

Which of the following best describes a 'procedural abstraction'?

Accepted Answer

Hiding the implementation details of a procedure behind a named call

Answer

Procedural abstraction lets a programmer call a named procedure without knowing how it is implemented internally.

Question 2

A programmer creates a function called `calculateTax(income)` so that other parts of the program don't need to know the tax formula. This is an example of:

Accepted Answer

Procedural abstraction

Answer

Hiding the formula inside a named function and calling it by name is procedural abstraction.

Question 3

Which statement about layers of abstraction in computing is TRUE?

Accepted Answer

Higher layers hide the complexity of lower layers

Answer

Each higher layer of abstraction hides the complexity of the layer beneath it, simplifying what the programmer must handle.

Question 4

In the context of AP CSP, what is a 'model' as a form of abstraction?

Accepted Answer

A simplified representation that captures only relevant features

Answer

A model is an abstraction that represents only the features relevant to the problem, ignoring unnecessary details.

Question 5

Which of the following is an example of data abstraction?

Accepted Answer

Using a list to represent a collection of student scores without specifying how the list is stored in memory

Answer

Using a list to represent scores without knowing the underlying memory layout is data abstraction.

(APCSP) AP Computer Science Principles Practice Test

(APCSP) AP Computer Science Principles Practice Test

APCSP Abstraction Concepts 2