AP Computer Science Principles Exam Prep with Verified Answers
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Course
AP Computer Science Principles
Institution
AP Computer Science Principles
AP Computer Science Principles Exam
Prep with Verified Answers
What is a "nested loop" and how is it used?
A nested loop is a loop within another loop, used to iterate over multidimensional data
structures or perform complex repetitive tasks.
What does "code modularity" involve and why i...
AP Computer Science Principles Exam
Prep with Verified Answers
What is a "nested loop" and how is it used?
✔✔A nested loop is a loop within another loop, used to iterate over multidimensional data
structures or perform complex repetitive tasks.
What does "code modularity" involve and why is it beneficial?
✔✔Code modularity involves breaking code into smaller, reusable modules or functions,
improving readability, maintainability, and testability.
How does "recursion" work and when is it typically used?
✔✔Recursion occurs when a function calls itself to solve smaller instances of a problem, often
used for tasks like tree traversal or solving mathematical problems.
What is a "Boolean expression" and how is it used in programming?
✔✔A Boolean expression evaluates to either true or false and is used to control the flow of a
program with conditional statements.
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,What is the role of "exception handling" in a program?
✔✔Exception handling manages runtime errors by allowing a program to continue operating or
handle errors gracefully without crashing.
What does "algorithm complexity" mean and how is it measured?
✔✔Algorithm complexity measures the efficiency of an algorithm in terms of time and space,
often expressed using Big O notation.
What is the purpose of "unit testing" in software development?
✔✔Unit testing involves testing individual components or functions of a program to ensure they
work correctly before integrating them into a larger system.
How does "data encapsulation" improve code security?
✔✔Data encapsulation hides internal data and implementation details from outside access,
protecting the data and preventing unauthorized modifications.
What is a "class" in object-oriented programming and how is it used?
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,✔✔A class is a blueprint for creating objects that defines attributes and methods, allowing for
the organization and management of related data and behaviors.
What does "pseudo-code" accomplish in algorithm design?
✔✔Pseudo-code provides a high-level description of an algorithm using plain language-like
syntax, making it easier to understand and translate into actual code.
What is the function of an "if statement" in programming?
✔✔An if statement evaluates a condition and executes a block of code if the condition is true.
How does a "for loop" operate in programming?
✔✔A for loop iterates over a sequence or range of values, executing a block of code for each
value.
What is "software abstraction" and why is it used?
✔✔Software abstraction hides complex implementation details and exposes only necessary parts
to simplify interactions and reduce complexity.
What is the difference between "sequential" and "parallel" processing?
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, ✔✔Sequential processing executes tasks one after the other, while parallel processing executes
multiple tasks simultaneously to improve efficiency.
What does "modular programming" involve?
✔✔Modular programming involves dividing a program into smaller, independent modules or
functions, making it easier to develop, test, and maintain.
What is "debugging" and how does it benefit software development?
✔✔Debugging is the process of finding and fixing errors in code, which improves the
functionality and reliability of software.
What is an "event handler" and how does it work?
✔✔An event handler is a function or method that responds to specific events or actions, such as
user interactions or system events.
What is the purpose of a "data structure"?
✔✔A data structure organizes and stores data efficiently to facilitate easy access, manipulation,
and management.
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