APCSP APCSP Program Design and Development 2

Question 1

What is a 'test case' in software development?

Accepted Answer

A specific set of inputs used to verify a program produces expected outputs

Answer

A test case defines known inputs and their expected outputs, allowing developers to verify program correctness systematically.

Question 2

Which scenario best illustrates 'edge case' testing?

Accepted Answer

Testing the program with the largest or smallest valid values and boundary conditions

Answer

Edge cases test the boundaries of valid input ranges, where bugs are most likely to occur in conditional logic.

Question 3

What is the role of a 'specification' in program development?

Accepted Answer

A document that describes what a program should do before it is built

Answer

A specification defines the expected behavior, inputs, and outputs of a program, guiding development and testing.

Question 4

Why is it important to test a program with invalid inputs?

Accepted Answer

Programs should handle unexpected inputs gracefully without crashing

Answer

Robust programs handle invalid inputs by displaying errors or using defaults rather than crashing or producing wrong results.

Question 5

What does 'debugging' involve?

Accepted Answer

Identifying and fixing errors so a program behaves as intended

Answer

Debugging is the process of locating logical, syntax, or runtime errors and correcting them so the program runs correctly.

(APCSP) AP Computer Science Principles Practice Test