PLTW Computer Science Essentials (CSE) Practice Test

These questions are part of the practice quiz. Start practicing

• What is the term for a collection of data values that can be of different types?
• In programming, what is often called 'an instance of the class'?
• Which programming methodology focuses on breaking down tasks and developing in iterations?
• What iterative and incremental development process is commonly used by a team of developers?
• Which programming construct allows the program to perform different actions based on varying conditions?
• What is the term for a function that is a member of a class?
• What does API stand for in software development?
• In programming, what type of value do loops typically control?
• When referring to data types, which type is typically represented as having decimal points?
• In programming languages, what does "syntax" refer to?
• What does "scope" refer to in programming?
• What term describes the practice of accessing systems or networks illegally to exploit vulnerabilities?
• What are the key aspects of computational thinking?
• What is the term for a sequence of actions or instructions to follow in solving a problem or accomplishing a task?
• Which scenario is most relevant to the use of Big O notation?
• Which statement about programming classes is true?
• What is the term for a special kind of variable defined in a function to receive specific information?
• What characteristic is common in object-oriented programming?
• What term is used for an operator that compares values?
• Which of the following values are given to a function or subroutine in programming?
• What is the role of abstraction in computational thinking?
• Which term refers to the known or unknown information contained within a program's variable?
• What does it mean to decrement a number?
• What do we call a representation of a logical statement in programming that determines the truth of a statement?
• What is the name of the process that allows a set of instructions to be repeated a specific number of times or until a condition is met?
• What does the term "networking" refer to in computer science?
• What is the primary purpose of using loops in programming?
• What is a defining characteristic of agile methodology?
• What does API stand for in the context of software development?
• Which of the following is an example of a data type?
• In programming, what does a 'while loop' primarily utilize to control its execution?
• What is defined as information or signals entered into a computer system?
• What is the name given to a storage space on a device for storing information from an application?
• What do you call an array that contains both rows and columns?
• What defines a primary source in research?
• What does it mean when a program behaves differently based on static values?
• What is a conditional statement?
• What is defined as a named section of a program that performs a specific task?
• What is the name of the mathematical operator that performs division and returns the remainder?
• What does a Boolean value represent in programming?
• What is analyzed in an event to determine the next actions during a software application’s operation?
• What do we call the information or signals produced or delivered by a computer system?
• What type of programming statement evaluates a true/false Boolean expression to determine the next steps in a program?
• What characteristic does a dictionary data structure have?
• What do we call the combination of symbols that forms a valid structure in programming languages?
• What is a program called that contains many missing pieces to be filled in?
• Which control flow statement is typically used when the number of iterations is known before execution?
• Which of the following best describes an 'element' in a programming list?
• Which of the following best describes the role of a testing framework in software development?
• What is a single entry within a list called?
• What is the name of the command processor that usually operates in a text window?
• What is the primary function of the Central Processing Unit (CPU) in a computer?
• What is the significance of comparison operators in a Boolean expression?
• How do public and private access modifiers differ in object-oriented programming?
• What term describes a group of color values identified by a vision system as the same color?
• What kind of data structure allows elements of only one type to be stored efficiently?
• What is the value returned by a computer after a function completes?
• What algorithm is used in artificial intelligence to identify the best path through an environment?
• What are parameters in function definitions used for?
• Which term refers to the practice of using a network of remote servers for data management?
• What is a means to create computer programs by manipulating elements graphically called?
• In object-oriented programming, what is a class?
• How does pseudocode benefit programmers?
• What is the significance of a variable's scope in programming?
• In MIT App Inventor, what is a control block that looks for inputs or events?
• What is an Integrated Development Environment (IDE)?
• What does "algorithm efficiency" refer to?
• What is an Endpoint URL best defined as?
• What does inheritance mean in the context of OOP?
• What describes a program that can change based on inputs and conditions?
• What is the purpose of the return statement in programming?
• What does a Boolean data type represent?
• What is the process of identifying errors or bugs in hardware or software called?
• What is a function or artifact in an app that can be added in Design view of MIT App Inventor called?
• Which type of source does a secondary source reference?
• What defines an "array" in programming?
• What type of operator is used to assign a value to a variable?
• What term describes applying a procedure while only knowing its functionality, without understanding its inner workings?
• In pair programming, what roles do the two programmers typically take?
• What does it mean to "decompose" a problem in computational thinking?
• What term refers to a list that contains a class of objects, often found in social media?
• How can a testing framework affect software quality?
• Why is it important to understand algorithm complexity, such as that described by Big O notation?
• What is an essential characteristic of algorithms regarding data processing?
• Which programming paradigm primarily focuses on explicit, sequenced instructions?
• Which of the following is used to create a processing decision branch using comparison operators?
• What programming paradigm emphasizes the creation of reusable patterns of code?
• In programming, what is the term used to describe the specific location of an item in a list?
• Which data structure is characterized by a fixed number of elements of the same data type?
• What is an instance of a class commonly referred to in programming?
• What is the process by which unnecessary details are hidden to focus on high-level functions?
• In programming, what is it called when a function is invoked with inputs to process data?
• What type of programming language enables graphical manipulation of elements?
• What is the purpose of iteration in programming?
• Which term describes a group of statements used at one or more points in a computer program?
• What is referred to as a function of an application or user interface?
• Which symbol in code performs a specific math operation like addition or subtraction?
• What term describes the characteristic of following rules of syntax?
• What type of program implements only the most essential structures without specific details?
• Which factor describes how easy it is for users to navigate and use an app?
• Which of the following best represents an algorithm?
• What is a basic unit of data that represents the smallest possible value in programming?
• What type of error is identified at a program's compilation?
• What is a template for creating objects called in object-oriented programming?
• Which ability does an Integrated Development Environment (IDE) provide that enhances programming?
• What is a prioritized list of tasks called that needs to be accomplished to create an app?
• What format typically includes user-centered features in addition to technical requirements for app development?
• Which of the following has a direct relationship to the inputs and conditions in a program?
• What is the term used when separate items are joined together into one place without changing them?
• What command is used to trigger or start an event in a program?
• What does event-driven programming primarily focus on?
• What is an Integrated Development Environment (IDE)?
• What is the purpose of a Version Control System?
• What is the name for a set of color signatures arranged in a recognizable pattern?
• What kind of programming method helps in focusing on higher-level concerns instead of lower-level details?
• Which terms refer to the process of conveying outcomes from a computer system?
• What triggers a response or behavior by the software during run-time?
• What aspect of programming does event-driven programming specifically enhance?
• What occurs when a syntax error is present in a piece of code?
• What does the term branch refer to in programming?
• What term describes the sections of a program where a particular variable can be accessed and modified?
• In programming, how is a string typically represented?
• What term describes the process of breaking a complex problem or system into smaller, manageable parts?
• What does a chained conditional statement do?
• What term refers to the set of rules that defines the correct structure of a programming language?
• What is the symbol in code called that assigns values in an equation?
• What is a key characteristic of a function in programming?
• What does user experience (UX) refer to in software development?
• What is the action of directing a program to execute or reference a specific procedure called?
• In programming, what term describes a specific action taken in response to an event?
• Which of the following describes a whole number that does not have a decimal?
• What do we call the detailed listing of individual development tasks needed to address a backlog item?
• What is the function of a library in programming?
• What is "pseudocode" best described as?
• Which technology is used to make decisions based on image data in programming?
• What term describes information or signals produced by a computer system?
• What is the term for a loop that increments a counter by a certain value each time an event occurs?
• What term describes hard coding in a programming context?
• Which of the following is NOT a data type commonly used in programming?
• What does algorithm design involve?
• What does object-oriented programming (OOP) emphasize?
• What programming concept involves placing one function within another?
• In programming, what is a variable?
• What is the style of writing where spaces are replaced by the underscore character and everything is in lowercase?
• In programming, what is a "data type"?
• What is the main purpose of using a testing framework?
• What term is used for a programming construct that specifies methods and attributes related to an object?
• In the context of UX, which of the following is least likely to enhance user satisfaction?
• What do we call the text or characters displayed by a program?
• What is the primary purpose of input validation?
• What type of variable is defined within a limited scope, often within a function?
• What is the connection between networking and collaborative work in projects?
• What term is used for the collaboration structure where one person types while the other directs?
• What concept involves working out the logic of a program without focusing on specific programming language details?
• How do classes and objects relate in OOP?
• What is a list in computer science?
• Which type of variable is stored data that can only be used within a small scope of a project?
• Which of the following is a common use of the Terminal in programming?
• What does static typing ensure in a programming language?
• What type of problem is characterized by a lack of clear definition and many contributing factors?
• What does the software development lifecycle refer to?
• What is the function of a while loop?
• In Cloud9, what is the area called where you can write and save Python programs?
• Which of the following is an example of a data type?
• What is short-circuit evaluation in logical operations?
• What distinguishes a function from a procedure in programming?
• What is the main purpose of a flowchart?
• What is the primary function of a user interface?
• What is a variable that can be accessed by any part of the program called?
• What is the term for the process of using a procedure without understanding its underlying mechanism?
• What is a software application that a user typically downloads to a mobile device commonly called?
• What component is typically included in an Integrated Development Environment (IDE)?
• Why is it important to measure the efficiency of an algorithm?
• Which of the following best describes the Cloud in computing?
• What is a string in programming?
• What are the two main types of programming errors?
• Which type of array is best suited for representing data in a table format?
• What does modularity in software development encourage?
• When is using a for loop most appropriate in programming?
• What does it mean to decompose a complex system or problem?
• What is a systematic set of instructions for accomplishing a task known as?
• What is a key benefit of using an API in software development?
• What term refers to a set of program instructions?
• Which programming concept refers to reducing a variable's value by one?
• How does a function differ from a variable?
• What does "binary" refer to in computer science?
• What is the term for repeating instructions until a certain condition is fulfilled?
• In the context of OOP, what does encapsulation mean?
• What is the key feature of pair programming?
• What is the primary purpose of algorithms in computer science?
• Why is networking important in computer science?
• What is the main function of version control in software development?
• What is the role of a function in recursion?
• What type of array consists of a single linear list of elements?
• What is the primary function of comments in code?
• What does data abstraction primarily focus on in computer science?
• What does abstraction in programming aim to do?
• Which file naming convention avoids spaces and uses capitalization to differentiate words?
• How is "input" different from "output" in programming?
• Which of the following is an example of pattern recognition in computational thinking?
• How often should roles be switched in pair programming?
• Which term describes a program that can analyze its environment and respond to achieve a goal?
• What is the use of Big O notation in computer science?
• What is a key benefit of cloud computing?
• What term refers to the kind of data stored in a variable?
• What is the role of comments in programming code?
• What type of loop continues to execute as long as a specified condition is true?
• Which programming language is known for emphasizing code readability?
• Which type of number provides very precise information, including digits after the decimal?
• What type of programming element defines a method to receive data?
• Which function identifies both a starting point and an end point while determining the extent of each iteration in the loop?
• What is one of the main benefits of using object-oriented programming?
• What aspect does user experience aim to improve?
• Which type of source presents an interpretation of existing work, often including citations?
• In programming, what does the term "nesting" refer to?
• What is defined as the smallest unit of data storage in a program?
• Which of the following terms refers to ethical hacking used to identify and fix system weaknesses?
• What does "debugging" refer to in software development?
• What type of language is commonly used in everyday conversation?
• What is a Boolean expression used for in programming?
• What do we call a sequence of instructions that repeats until a specific condition is met?
• What kind of variable can change its value based on program input?
• Which of the following correctly describes the significance of a library in programming?
• How is the concept of "iteration" defined in programming?
• What term describes an application of pseudocode to outline logic without concern for specific syntax?
• In programming, what does a method typically represent?
• Which structure is commonly used to implement iteration in programming?
• In programming, what is a block of organized and reusable code that performs a single action called?
• What is a dictionary in the context of data structures?
• How can recursion be defined in programming?