AP CPS Quiz

Which of the following actions is most likely to help reduce the digital divide

• Deploying satellites and other infrastructure to provide inexpensive internet access to remote areas of Earth

• Adding a requirement that all users of a popular social media site link their accounts with a phone number

• Offering improved Internet connections to Internet users who are willing to pay a premium fee for more bandwidth

• Digitizing millions of books from university libraries, making their full text available online

A game keeps track of the maximum and minimum scores obtained so far. If num represents the most recent score obtained, which of the following algorithms correctly updates the values of the maximum and the minimum?

• If num is less than the minimum, set the minimum equal to num. Otherwise, if num is greater than the maximum, set the maximum equal to num.

• If num is less than the minimum, set the minimum equal to num. Otherwise, if num is less than the maximum, set the maximum equal to num.

• If num is greater than the minimum, set the minimum equal to num. Otherwise, if num is greater than the maximum, set the maximum equal to num.

• If num is greater than the minimum, set the minimum equal to num. Otherwise, if num is less than the maximum, set the maximum equal to num.

Which of the following are the benefits of procedural abstraction?

Select two answers.

• Procedural abstraction eliminates the need for programmers to document their code.

• Procedural abstraction prevents programmers from accidentally using the intellectual property of other programmers.

• Procedural abstraction makes it easier for people to read computer programs.

• Procedural abstraction provides an opportunity to give a name to a block of code that describes the purpose of the code block.

A company that develops mobile applications wants to involve users in the software development process. Which of the following best explains the benefit in having users participate?

• Users can review the algorithms used in the software to help improve their efficiency.

• Users can provide feedback that can be used to incorporate a variety of perspectives into the software.

• Users can provide documentation for program code at the end of the software development process.

• Users can identify and correct errors they encounter when using released versions of the software.

In which of the following scenarios would a simulation be the LEAST beneficial?

• An insurance company wants to study the effect of cold weather patterns on health-care costs.

• A manufacturing company wants to determine whether using robots in its facility will increase productivity.

• A retail company wants to determine the most popular item that was sold on the company’s Web site last month.

• An engineering company wants to test whether a change to a car design will negatively affect fuel efficiency.

Consider the following numeric values.

"Binary 1011 Binary 1101 Decimal 5 Decimal 12"

Which of the following lists the values in order from least to greatest?

• Binary 1011, binary 1101, decimal 5, decimal 12

• Decimal 5, decimal 12, binary 1011, binary 1101

• Decimal 5, binary 1011, decimal 12, binary 1101

• Decimal 5, binary 1011, binary 1101, decimal 12

Let n be an integer value. Which of the following expressions evaluates to true if and only if n is a two-digit integer (i.e., in the range from 10 to 99, inclusive)?

• (n ≥ 10) AND (n < 100)

• n = (n MOD 100)

• (n > 10) AND (n < 99)

• (n < 10) AND (n ≥ 100)

What is the value of result after the code segment is executed?

• 6

• 10

• 15

• 21

Which of the following are true statements about the data that can be represented using binary sequences?

I. Binary sequences can be used to represent strings of characters.

II. Binary sequences can be used to represent colors.

III. Binary sequences can be used to represent audio recordings.

• I only

• I and II only

• II and III only

• I, II, and III

Which of the following is a primary benefit of making a computing system fault-tolerant?

• If one component of the system fails, users of the system can often still access it.

• If one component of the system is hacked, no information will be stolen.

• If the system cannot operate efficiently, making it fault-tolerant will speed up its operation.

• If the system becomes too expensive, making it fault-tolerant will save money.