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AP Computer Science A Practice Quiz: Impact of Program Design

Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026

Test your understanding with short quizzes. This quiz has 9 questions to check your progress.

Question 1 of 9

Which of the following best defines system reliability?

All Questions (9)

Which of the following best defines system reliability?

A) The speed at which a program can process data.

B) The program's ability to perform its tasks as expected without failure.

C) The number of users a program can support simultaneously.

D) The aesthetic quality of the user interface.

Correct Answer: B

The provided content explicitly states that 'System reliability refers to the program being able to perform its tasks as expected under stated conditions without failure.'

A new social media app is designed to connect people, but it also leads to increased social anxiety among its users. This outcome is best described as which of the following?

A) A failure in system reliability.

B) An intended beneficial effect.

C) An unintended harmful effect.

D) An expected cultural impact.

Correct Answer: C

The content states that 'Programs meant to fill a need or solve a problem can have unintended harmful effects beyond their intended use.' The app was intended to connect people (a benefit), but the resulting social anxiety is a harmful effect that was not intended.

According to the provided text, what is the primary method programmers should use to maximize system reliability?

A) Writing code that is easy to read.

B) Using the most popular programming language.

C) Testing the program with a variety of conditions.

D) Releasing the program to the public as quickly as possible.

Correct Answer: C

The text states that 'Programmers should make an effort to maximize system reliability by testing the program with a variety of conditions.'

The development of a new automation software increases a company's profits but also leads to job losses for many employees. This situation best illustrates which concept from the text?

A) The impacts of programs can be both beneficial and harmful.

B) System reliability can only be achieved through extensive testing.

C) All computing systems have purely positive social implications.

D) The primary impact of software is always cultural.

Correct Answer: A

This scenario shows a program with a beneficial economic impact (increased profits) and a harmful social impact (job losses), directly reflecting the idea that 'These impacts can be both beneficial and harmful.'

When designers of a new navigation app discuss how the app's data collection might affect user privacy, they are considering the program's...

A) system reliability.

B) social and ethical implications.

C) intended use case.

D) economic viability.

Correct Answer: B

The first point of the content is to 'Explain the social and ethical implications of computing systems.' User privacy is a key social and ethical consideration in the design of such systems.

A banking application works perfectly for transactions under $1,000 but crashes whenever a user tries to transfer a larger amount. This is a direct failure of which of the following?

A) Cultural impact

B) Ethical design

C) System reliability

D) Economic modeling

Correct Answer: C

The program is not performing its task as expected under a specific, stated condition (transactions over $1,000). This is a clear example of a failure in system reliability, which could have been caught by testing with a variety of conditions.

The provided text indicates that the creation of programs has impacts on which combination of areas?

A) Society and the economy only.

B) The economy and culture only.

C) Society, the economy, and culture.

D) The individual user only.

Correct Answer: C

The content explicitly states, 'The creation of programs has impacts on society, the economy, and culture.'

A program is designed to solve the problem of food waste by connecting restaurants with leftover food to charities. A beneficial impact is reduced waste. A harmful impact is that it unintentionally creates a dependency where charities reduce their own food sourcing efforts. This scenario highlights that...

A) programs designed to solve a problem cannot have harmful effects.

B) a program's reliability is determined by its social impact.

C) even programs with good intentions can have unforeseen negative consequences.

D) the only important impact of a program is its effect on the economy.

Correct Answer: C

This complex scenario demonstrates the key idea that 'Programs meant to fill a need or solve a problem can have unintended harmful effects beyond their intended use.' The program's goal was positive, but it resulted in a negative, unforeseen outcome.

Which of the following is an example of a social or ethical implication of a computing system?

A) The choice of programming language used to build the system.

B) The potential for an algorithm to show bias against certain demographic groups.

C) The speed at which the system's database can retrieve information.

D) The cost of the servers required to run the system.

Correct Answer: B

Algorithmic bias is a significant social and ethical issue, as it can perpetuate or amplify societal inequalities. The other options relate to technical implementation (A, C) or economic cost (D), not the direct social or ethical implications.