AP CSP Unit 1 Review

Hiro is writing a program which will record the number of cars passing a certain point in town every hour in a day, then record the range of this data by subtracting the smallest total from the largest. He will use a variable, rge, to store the range. Which variable type would be most suitable for rge?

• Floating point (float)

• Integer (int)

• Boolean

• String

Understanding of the life cycle of a program is an essential component to becoming an effective programmer. Which of the following is the best example of how the life cycle of a program should work?

• Idea→write code→algorithm→execute code→debug→maintain

• Idea→algorithm→write code→execute code→maintain→debug

• Idea→algorithm→write code→execute code→debug→maintain

• Idea→algorithm→write code→debug→execute code→maintain

Which of the following best describes how computing devices represent information?

• A computer represents information as bits which contain 8 bytes.

• A computer represents data as bits which is either a 0 or a 1

• A computer will either represent information as bits or bytes but not both

• A computer represents data as a byte which is either a 0 or a 1

What is debugging in computer science?

• The process of identifying and removing errors from a computer program.

• The process of writing a computer program.

• The process of running a computer program.

• The process of encrypting a computer program.

What is a unit of information in computing?

• Bit

• Byte

• Binary

• Sampling

How are variables used in programming?

• Variables are used to display output in programming.

• Variables are used to create loops in programming.

• Variables are used to store and manipulate data in programming.

What is a compiler in computer science?

• A tool that translates source code from a high-level programming language to a machine level language.

• A device that stores data.

• A tool for creating algorithms.

• A device for executing programs.

Which of the following is NOT a characteristic of collaborating?

• The location of the collaboration should be in one neutral physical location similar to a conference room.

• Collaboration that includes diverse perspectives can help to avoid bias in the development of computing innovations.

• Collaboration requires that individuals have interpersonal skills to collaborate effectively.

• All of the above.

What is an iterative software development process designed to do?

• Produce better software with a proven process.

• Shorten the time of developing software by beginning to code while the requirements are being determined.

• Eliminate the testing step by using only APIs.

• Develop it right the first time through the iterative process.

How do event-driven programs progress?

• They run in a linear fashion from start to end.

• The code executes sequentially.

• The code executes when an action occurs that is programmed to recognized.

• The code runs iteratively.