Free CT-MAT sample questions

Correct answer: The hybrid app may rely heavily on web view caching and might have slower performance or limited access to background sync services compared to native code.

Hybrid apps running in a WebView (like Cordova or early Ionic) rely on the browser engine. While they can store data, complex background synchronization and seamless offline-first experiences are often more performant and robust in native code due to direct OS API access without the JS bridge overhead.

Correct answers: The percentage of the target audience using the specific Operating System version (e.g., iOS 17.x).; The resolution and pixel density (DPI) popularity within the target region.

To calculate coverage, you must know what percentage of your users are on a specific OS version. If you test iOS 17 but 40% of users are on iOS 16, your coverage is low.

Screen fragmentation is a major mobile challenge. Knowing the distribution of screen sizes/densities ensures your test devices cover the visual configurations your users actually see.

Correct answer: Adopt a rigorous extensive testing approach including physical device testing with actual pumps, focusing on connectivity loss, data corruption, and regulatory compliance (e.g., FDA/MDR) over cosmetic UI issues.

Safety-critical apps require the highest level of rigor. Emulators cannot accurately simulate Bluetooth hardware behaviors or pump failures. Risk mitigation must prioritize patient safety scenarios (connectivity, data accuracy) over less critical aspects.

Correct answer: False

This is False. A 'Thin Client' architecture relies heavily on the server for processing business logic and data storage, with the mobile device acting primarily as a display and input terminal. A 'Fat' or 'Rich' client processes logic locally.

Correct answer: Verifying the 'Add to Home Screen' prompt appears and the Service Worker correctly caches assets for offline use.

PWAs are defined by their ability to be installed (Add to Home Screen) and function offline via Service Workers. Standard responsive websites do not have these specific capabilities, making this scenario unique to PWAs.

Correct answer: The application should go to the background, pause execution, and upon resumption, present the user with the same state (or a lock screen if timeout occurred) without data loss.

The standard correct behavior for interruptions is to suspend gracefully (saving state) and resume exactly where the user left off, or present a security screen if the sensitive app requires it. Crashing or losing input data is a failure.

Correct answer: The app should display a rationale dialog explaining why the feature is needed and provide a link to the OS Settings page to manually enable the permission.

After a permission is denied (especially with 'Don't ask again' implicit in newer Android versions), the app cannot show the system prompt again. The best practice is to show a custom UI explaining the need and directing the user to Settings.

Correct answer: The test script passes successfully, but the application actually crashed in the background during execution.

A False Negative occurs when the test reports 'Pass' (Negative for defects), but a defect actually exists. This often happens if the script doesn't validate the correct end state or ignores background crashes.

Correct answer: Verify that the GPS coordinates collected during the 2-hour dead zone were locally cached and are successfully batched/uploaded to the server once 3G is restored, without data gaps.

For a hiking app, data continuity is the core value. The app must cache data locally when offline and sync automatically when connectivity returns. Losing the 2 hours of data would be a critical failure.

Correct answer: It is a heuristic designed to remind testers of mobile-specific areas to explore, such as Inputs, Store, Location, Interactions, Communication, Ergonomics, Data, Usability, Platform, Function, User, Network.

I SLICED UP FUN is a popular mnemonic created by Jonathan Kohl specifically for mobile testing. Each letter stands for a category (e.g., S=Store, L=Location, N=Network) to trigger test ideas during exploration.