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Question 1. Which mobile business model generates revenue primarily through optional purchases made after the app is downloaded for free? A) Paid B) Freemium C) Advertising‑supported D) Subscription Answer: B Explanation: The freemium model offers the app for free and monetizes through in‑app purchases of premium features or content. Question 2. When selecting devices for a test matrix based on market share data, which metric is most critical for ensuring coverage of the majority of users? A) Device weight B) Screen‑to‑body ratio C) Market share percentage of device models D) Battery capacity Answer: C Explanation: Market share percentages indicate how many users own each device; testing high‑share models maximizes coverage. Question 3. Which category of mobile device typically runs a full‑featured operating system and supports multitasking, but has a smaller screen than tablets? A) Wearable B) Smartphone
C) Phablet D) E‑reader Answer: B Explanation: Smartphones run iOS or Android, support multitasking, and have screens generally between 4.5‑6.5 inches, smaller than tablets. Question 4. Which type of mobile application is built using a single codebase that runs inside a native container and accesses device features through plugins? A) Native B) Hybrid C) Web D) Progressive Web App Answer: B Explanation: Hybrid apps use web technologies inside a native wrapper (e.g., Cordova) and reach device APIs via plugins. Question 5. In a typical three‑tier mobile application architecture, which tier is responsible for handling business rules and data processing? A) Presentation tier B) Business logic tier C) Data storage tier D) Device driver tier Answer: B
B) Sensor data variability C) Network throttling D) Code obfuscation Answer: B Explanation: Sensor data (e.g., GPS jitter, accelerometer noise) can differ per device, making bugs hard to reproduce. Question 9. Which hardware attribute should be verified when testing an app that records high‑resolution video? A) CPU clock speed B) Camera megapixel rating and video codec support C) Bluetooth version D) NFC antenna size Answer: B Explanation: Video recording depends on camera capabilities and supported codecs; CPU may affect performance but the camera spec is primary. Question 10. When testing an app’s interaction with the device’s contacts list, which permission must be granted on Android? A) ACCESS_FINE_LOCATION B) READ_CONTACTS C) CAMERA D) INTERNET Answer: B
Explanation: READ_CONTACTS permission allows the app to query the device’s contacts database. Question 11. Which network condition is most appropriate to simulate when testing push‑notification delivery reliability? A) Constant 5G connection B) Intermittent 2G/3G connectivity with occasional drops C) Wi‑Fi with unlimited bandwidth D) Ethernet cable connection Answer: B Explanation: Push notifications must handle intermittent mobile connections, typical of 2G/3G environments. Question 12. Functional testing of a mobile banking app should include which of the following scenarios? A) Battery consumption under heavy load B) Successful fund transfer between accounts C) UI rendering on a 4K tablet D) Encryption algorithm performance Answer: B Explanation: Functional testing verifies business functions; a fund transfer is a core functional scenario. Question 13. Which non‑functional test type evaluates how quickly an app resumes after being placed in the background and then foregrounded? A) Usability
Explanation: Checking device storage at runtime ensures passwords are not saved in clear text. Question 16. Compatibility testing must verify that an app works on which combination of OS versions? A) Only the latest iOS version B) The minimum supported, current, and one version older than current Android releases C) All versions of Windows Phone D) Only the version used by the QA lead Answer: B Explanation: Testing the minimum supported, current, and a prior version provides coverage across the most common user bases. Question 17. Localization testing for a French‑language release should NOT include checking which of the following? A) Date format (DD/MM/YYYY) B. Currency symbol (€, €) C) Right‑to‑left layout mirroring D) Translation of UI strings Answer: C Explanation: French uses left‑to‑right script; right‑to‑left mirroring is relevant for languages such as Arabic or Hebrew. Question 18. Which interruption scenario is most likely to cause a loss of unsaved data in a mobile note‑taking app if not handled properly? A) Incoming phone call
B) Low‑battery warning C) Bluetooth device pairing request D) Screen rotation Answer: A Explanation: An incoming call can pause the app; if the app does not persist state, unsaved note data may be lost. Question 19. Smoke testing of a newly built mobile app version primarily aims to: A) Verify every possible edge case B) Confirm that the most critical functions launch and work C) Measure long‑term battery consumption D) Evaluate compliance with GDPR Answer: B Explanation: Smoke tests check that the build is stable enough for further testing by exercising core functionality. Question 20. In a regression suite for a mobile messaging app, which type of test should be executed after each code commit? A) Full performance benchmark B) Selective UI smoke tests covering send/receive flow C) Accessibility audit for screen readers D) Internationalization test for all supported languages Answer: B
C) Simulates user gestures only D) Requires a physical device to operate Answer: A Explanation: Emulators mimic both hardware and OS, enabling execution of native code; simulators typically only imitate the OS environment. Question 24. When setting up a physical device lab, which factor most directly impacts the ability to test across multiple OS versions? A) Number of Wi‑Fi routers B) Variety of device models with different OS releases C) Color of device cases D) Presence of a coffee machine Answer: B Explanation: A diverse set of devices with different OS versions allows testing of fragmentation. Question 25. Cloud‑based device farms are advantageous because they: A) Eliminate the need for any local test devices B) Provide unlimited network bandwidth for free C) Offer on‑demand access to a wide range of real devices without hardware maintenance D) Automatically fix all bugs found Answer: C Explanation: Device farms let testers run tests on many real devices remotely, reducing capital expense and maintenance.
Question 26. Which level of test automation is most appropriate for verifying the correctness of a REST API used by a mobile app? A) UI automation B) Unit test automation C) API (service) automation D) Performance script automation Answer: C Explanation: API automation directly validates the contract and behavior of backend services without UI interaction. Question 27. Which limitation is commonly associated with using emulators for battery‑consumption testing? A) Emulators cannot simulate GPS signals B) Battery usage metrics are not accurately modeled C) Emulators lack touchscreen support D) Emulators cannot run Android 12 Answer: B Explanation: Emulators do not reflect real power draw, making battery‑consumption measurements unreliable. Question 28. When integrating mobile test automation into a CI/CD pipeline, which tool is typically used to orchestrate test execution on multiple devices? A) Jenkins B. Microsoft Word C. Adobe Photoshop
Question 31. Which of the following best describes “exploratory testing” in a mobile context? A) Executing a pre‑written script without deviation B. Randomly tapping the screen for a fixed time C) Simultaneously testing on all devices in the lab D) Simultaneously designing and executing tests based on real‑time observations Answer: D Explanation: Exploratory testing involves learning, designing, and executing tests on the fly, adapting to findings. Question 32. In component testing of a mobile app, which element is typically isolated? A) Entire end‑to‑end workflow B) Individual UI widget or service class C) Full device OS D) Cloud backend database Answer: B Explanation: Component testing focuses on a single module (e.g., a view controller) independent of other parts. Question 33. Which type of non‑functional test would assess how an app behaves when the device’s CPU is throttled to 50 %? A) Usability test B) Performance – Stress test C) Compatibility test
D) Security test Answer: B Explanation: Stress testing evaluates behavior under constrained resources like reduced CPU capacity. Question 34. During localization testing, which defect would indicate a failure to adapt the app for the German market? A) “Settings” menu still displays in English B) App crashes on iOS 15 C) Battery usage spikes after login D) Push notifications are delayed Answer: A Explanation: Untranslated UI strings demonstrate incomplete localization for the target language. Question 35. Which interruption is most likely to affect an app’s ability to maintain a secure TLS session? A) Incoming SMS message B) Device entering airplane mode C) Screen brightness change D) Accelerometer rotation Answer: B Explanation: Airplane mode disables network interfaces, causing TLS sessions to drop and potentially requiring renegotiation.
D) Company’s HR policy document Answer: B Explanation: Videos and logs help diagnose failures when tests run on remote devices. Question 39. Which OS fragmentation risk is most pronounced on Android compared to iOS? A) Single hardware vendor B) Uniform UI guidelines C) Wide variety of manufacturer‑specific UI skins and API levels D) Mandatory app store review Answer: C Explanation: Android devices come from many OEMs with custom skins and support multiple API levels, leading to fragmentation. Question 40. Which of the following is a primary reason to include “interrupt testing” in a mobile test plan? A) To verify app’s color scheme under different lighting B) To ensure the app can gracefully handle phone calls, notifications, or loss of focus C) To test the app’s performance on a desktop browser D) To measure Wi‑Fi signal strength Answer: B Explanation: Interrupt testing validates that the app preserves state and continues correctly after external events.
Question 41. Which type of mobile app typically requires the least amount of device‑specific code? A) Native B) Hybrid C) Web (PWA) D) Wearable‑only Answer: C Explanation: Web apps run in the browser and rely on standard web technologies, minimizing device‑specific code. Question 42. In a test plan, “device rotation” is considered a: A) Functional test case B) Usability test scenario C) Compatibility test for orientation handling D) Security test Answer: C Explanation: Verifying that the UI adapts correctly to portrait and landscape modes is a compatibility concern. Question 43. Which of the following is NOT a typical non‑functional requirement for a mobile health‑tracking app? A) Data must be encrypted at rest and in transit B) The app must launch within 2 seconds on supported devices C. The app must support offline mode for at least 24 hours of data collection D. The app must display a splash screen for at least 30 seconds
Question 46. Which Android testing tool allows recording a test script by interacting with the device and then generating an Espresso test? A) UIAutomatorViewer B) Android Studio’s Record Espresso Test feature C) MonkeyRunner D) Robolectric Answer: B Explanation: Android Studio provides a recorder that captures UI actions and produces Espresso code. Question 47. Which metric would you monitor to detect a memory leak in a mobile app during a prolonged usage test? A) Number of push notifications received per hour B) Gradual increase in RAM usage over time without release C) Screen brightness level D) GPS accuracy Answer: B Explanation: A steadily rising RAM consumption indicates that memory is not being reclaimed, suggesting a leak. Question 48. Which of the following best describes “device shadowing” in mobile testing? A) Using a physical device to mirror the screen of another device for remote debugging B) Running the same test simultaneously on multiple devices to compare results C) Simulating network latency on an emulator D) Encrypting device storage
Answer: B Explanation: Device shadowing often refers to parallel execution on several devices to validate consistent behavior. Question 49. Which type of test would verify that an app correctly formats dates according to the user’s locale settings? A) Compatibility test B) Localization test C) Performance test D) Security test Answer: B Explanation: Localization testing ensures that date, time, number formats, etc., follow locale conventions. Question 50. Which of the following is a primary benefit of using a hybrid testing framework that supports both UI and API testing? A) Reduces the need for any test documentation B) Allows a single test script to validate end‑to‑end flows across layers C) Guarantees zero false positives D) Eliminates the need for manual testing entirely Answer: B Explanation: A unified framework can orchestrate UI actions and backend API verification in one flow.
