Given a Scenario, Describe the Design Considerations, Trade-Offs, and Risks for Mobile Solutions and Recommend the Appropriate Mobile Platform. TECHNICAL-ARCHITECT Practice Questions (Page 1)

Questions 1–5

1. 1expert · hard

   A financial advisory firm is deploying a mobile app for its advisors to access client portfolios and make trades. The app will be used on company-owned devices. The firm is concerned about data leakage if a device is lost or stolen. The firm also wants to ensure that only authorized advisors can access the app. Which security approach should the architect recommend?

   • AStore all data on the server and require an internet connection for all operations
   • BImplement multi-factor authentication (MFA) and encrypt all data stored on the device
   • CUse a mobile device management (MDM) solution to enforce a passcode and enable remote wipe
   • DUse a containerization solution to separate corporate data from personal data
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2. 2expert · hard

   A retail company is building a mobile app for customers to make purchases and track orders. The company uses a legacy ERP system and Salesforce for marketing. The app must integrate with both systems, and the company wants to ensure secure authentication and data privacy. Which integration approach should the architect recommend?

   • AUse a message queue to asynchronously communicate with the backend systems
   • BUse an API gateway to expose a unified API to the mobile app, with OAuth 2.0 for authentication
   • CUse a point-to-point integration where the mobile app connects to each system's database
   • DHave the mobile app call the ERP and Salesforce APIs directly
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4. 3foundation · easy

   When designing a mobile solution for a sales team that frequently uses the app on the go, which device capability should the architect consider to enhance user productivity?

   • ALeveraging the device's camera for capturing business cards and documents
   • BDisabling notifications to minimize distractions
   • CRestricting all data entry to manual typing to ensure accuracy
   • DLimiting the app to landscape orientation for consistency
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5. 4expert · hard

   A logistics company has a mobile app for delivery drivers to update shipment status. The app must work offline, and multiple drivers may update the same shipment at different times. The company wants to ensure that the most accurate status is recorded and that no updates are lost. Which synchronization strategy should the architect recommend?

   • AUse a field-level conflict resolution that merges changes to different fields
   • BUse a queue-based system where updates are applied in the order they are received
   • CUse a last-write-wins strategy based on the timestamp of the update
   • DUse a versioning system where each update is stored as a new version and conflicts are resolved manually
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6. 5foundation · easy

   An organization wants to minimize development cost and time while still providing an app-like experience across multiple platforms. Which mobile architecture approach is most suitable?

   • AHybrid app development
   • BDeveloping a separate web app for each platform
   • CUsing a single native codebase for all platforms
   • DNative app development for each platform
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