AP Computer Science Principles Unit 1

What is a variable in computer science?

• A variable is a named storage location that holds a value.

• A variable is a programming language.

• A variable is a type of computer virus.

• A variable is a mathematical equation.

What is the iterative development process?

• Iterative development is a software development approach where the development process is divided into larger iterations or cycles.

• Iterative development is a software development approach where the development process is divided into sequential steps.

• Iterative development is a software development approach where the development process is divided into parallel iterations or cycles.

• Iterative development is a software development approach where the development process is divided into smaller iterations or cycles.

What is an algorithm?

• A step-by-step procedure or a set of rules for solving a specific problem or accomplishing a specific task.

• A random guess

• A computer program

• A mathematical equation

What is the idea of execution in computer science?

• Running a program or code on a computer

• Writing a program on a computer.

• Debugging a program on a computer.

• Compiling a program on a computer.

What is user input in computer science?

• Data or information provided by the user to a computer program or system.

• The process of a computer program or system analyzing data.

• The output of a computer program or system.

• Data or information provided by the computer to a user.

What is storage in computer science?

• The process of saving and retrieving data from a storage medium.

• The process of transmitting data between devices.

• The process of organizing data in a computer system.

• The process of encrypting and decrypting data.

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.

• Variables are used to define functions in programming.

What are the steps involved in the iterative development process?

• Define requirements and scope, Design and plan, Build and test, Review and evaluate, Repeat as necessary.

• Define requirements and scope, Design and plan, Test and evaluate, Repeat as necessary.

• Analyze and research, Develop and implement, Review and evaluate, Repeat as necessary.

• Define requirements and scope, Design and plan, Implement and deploy, Review and evaluate.

How do algorithms help in problem-solving?

• Algorithms make problem-solving more complicated and time-consuming.

• Algorithms are only useful for solving simple problems.

• Algorithms are not necessary for problem-solving and can be skipped.

• Algorithms provide step-by-step instructions or procedures to solve problems efficiently and accurately.

Why is user input important in computer programs?

• User input can cause errors in computer programs.

• User input allows the program to interact with the user and receive data or instructions.

• User input is not important in computer programs.

• User input slows down the execution of computer programs.