Creating Custom Apps in MATLAB certification exam assessment practice question and answer (Q&A) dump including multiple choice questions (MCQ) and objective type questions, with detail explanation and reference available free, helpful to pass the Creating Custom Apps in MATLAB exam and earn Creating Custom Apps in MATLAB certificate.
Table of Contents
Question 1
Which MATLAB tool is used to create an app?
A. Simulink
B. Live Editor
C. App Designer
D. Add-On Explorer
Answer
C. App Designer
Explanation
App Designer is MATLAB’s dedicated environment for building custom interactive applications with graphical user interfaces. It provides a drag-and-drop layout editor for UI components alongside an integrated code editor for defining app behavior, callbacks, and logic. Unlike Simulink, Live Editor, or Add-On Explorer, App Designer is specifically designed to develop standalone apps that package functionality, interactivity, and visualization into a single, reusable interface.
Question 2
What is the primary motivation for transitioning from a live script to a dedicated app for data exploration?
A. To reduce memory usage
B. To enable more flexible and user-friendly data interaction
C. To avoid writing any code
D. To increase the number of outputs displayed simultaneously
Answer
B. To enable more flexible and user-friendly data interaction
Explanation
A dedicated app allows users to interact with data through controls such as buttons, sliders, drop-down menus, and plots without directly modifying or rerunning code. This improves usability, supports exploratory workflows, and makes analysis accessible to non-programmers. Live scripts are effective for iterative analysis, but apps provide a more structured, intuitive, and repeatable interface for exploration and decision-making.
Question 3
How does separating the interface layout from the code improve the user experience?
A. It makes the app more visually appealing but less functional
B. It provides focus on the inputs and outputs and not the replicated analysis steps
C. It enables users to write their own code as needed
D. It shows only the code that is required based on a users selection
Answer
B. It provides focus on the inputs and outputs and not the replicated analysis steps
Explanation
Separating layout from logic ensures users interact only with the necessary inputs, controls, and visual outputs, rather than seeing the underlying analysis code. This reduces cognitive load, prevents accidental changes to implementation details, and creates a cleaner, task-focused experience. The developer manages complexity in the code, while users engage with a streamlined interface designed for their specific goals.
Question 4
What is the purpose of the component library?
A. To store datasets
B. To preview how the app will render to users
C. To select interactive components for user interaction
D. To store properties of interactive components used in an app
Answer
C. To select interactive components for user interaction
Explanation
The component library in App Designer contains all available UI elements, such as axes, buttons, numeric fields, tables, and menus, that can be added to an app. It serves as the primary source for building interactivity by allowing developers to choose components that collect user input, display results, and trigger callbacks, forming the functional structure of the application.
Question 5
Why is customizing component names and layout important?
A. It enables the app to run without errors
B. It improves computational efficiency
C. It decreases the app’s storage requirements
D. It helps with quickly identifying and referencing multiple components
Answer
D. It helps with quickly identifying and referencing multiple components
Explanation
Meaningful component names and an organized layout make app development, debugging, and maintenance significantly easier, especially as the number of UI elements increases. Clear naming conventions allow developers to reference components accurately in code, while a well-structured layout improves readability and scalability, reducing errors and development time in complex apps.