IBM Mobile Application Development Practice Exam 2025: Latest Questions

A mobile team is designing an app that must work reliably with intermittent network connectivity. Which architectural approach best supports this requirement?

A developer is deciding between native and hybrid development. The app needs deep access to device sensors and the smoothest possible UI animations. Which choice is most appropriate?

During testing, a QA engineer reports that the app sometimes crashes when rotating the device. What is the most likely underlying cause to investigate first?

A team is preparing to publish a mobile app to an enterprise audience and wants controlled distribution to internal users without listing publicly. Which approach is most suitable?

A mobile app uses a remote API and the UI frequently freezes while loading data. What is the best practice to prevent UI blocking?

A product owner wants a clean separation between presentation logic and data access to improve testability and maintainability. Which design approach best supports this goal?

A hybrid app shows inconsistent behavior across devices: a feature works in the browser but fails inside the app container when accessing the camera. What is the most likely cause?

A tester needs to verify that the app correctly handles slow network conditions and intermittent connectivity. Which testing approach is most appropriate?

After releasing an update, crash reports indicate a spike occurring only on one platform when a specific screen loads. The team wants a fast, low-risk mitigation while preparing a full fix. What is the best approach?

A security review finds that the app stores authentication tokens in plain text on the device. Which remediation is the most appropriate best practice?

A team is designing a mobile app that must work reliably with intermittent connectivity and allow users to continue creating records while offline. Which architecture approach best supports this requirement?

A hybrid mobile app embeds a WebView and needs to access the camera from JavaScript. What is the recommended way to implement this while keeping a clean separation of concerns?

A mobile app uses token-based authentication. Users report they are unexpectedly logged out when the app is backgrounded and then resumed. The token is still valid. What is the most likely cause?

During development, a team sees frequent UI freezes when loading data from a REST API. The API responses are fast, but the app becomes unresponsive while processing the response. What is the best troubleshooting action first?

A team maintains separate native iOS and Android apps. They want to share as much business logic as possible while keeping platform-specific UI. Which approach best meets this goal?

A release candidate passes functional tests, but a security review flags that sensitive user data might be exposed if the device is compromised. Which practice most directly mitigates this risk on the device?

After enabling a new feature flag, only some users experience a crash on app startup. The crash is not reproducible on developer devices. What is the best next step to diagnose the issue in the field?

A mobile team wants to reduce the risk of publishing a faulty update and also enable a staged rollout to a subset of users. Which release management strategy best supports this?

A hybrid app uses a WebView to display content from a remote domain. Authentication is handled by a web login page, but the app also needs to call native APIs on behalf of the authenticated user. Which design is most secure and maintainable?

A team wants to design their app to support multiple backends (e.g., production, staging, and a mock service for UI testing) without changing UI code. Which architecture choice best enables this flexibility?

A development team is adding an offline mode to a mobile app used in areas with unreliable connectivity. Users must be able to create and edit records offline, and the app should synchronize when the connection returns while minimizing conflicts. Which approach is the best practice?

A team is deciding between native and hybrid development for a business app. The app requires near-native UI performance, frequent use of the camera and background location, and must support both iOS and Android. Which choice is most appropriate?

During testing, a mobile app intermittently freezes when a user navigates quickly between screens. The freeze is hard to reproduce and seems related to asynchronous calls updating the UI after the user leaves the screen. What is the MOST likely root cause?

A mobile app must securely call a backend service that requires authentication. The team wants to avoid embedding secrets in the client app and reduce the risk of credential theft. Which is the best practice?

A team is preparing to release a new version of their mobile app. They want to reduce the risk of a widespread outage caused by a backend change and ensure they can quickly disable a problematic feature without forcing an immediate app update. Which strategy best supports this goal?