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 6)

Questions 26–30

1. 26application · medium

   A media streaming company is launching a mobile app that will be used by millions of users to watch videos. The backend must handle high traffic spikes during popular events. The company wants to ensure low latency and high availability. Which backend design should the architect recommend?

   • AA serverless architecture with functions that scale automatically
   • BA load-balanced cluster of application servers with a shared database
   • CA microservices architecture with auto-scaling and a content delivery network (CDN)
   • DA single large server with a powerful CPU and memory
   Reveal Solution Discussion Select an answer first
2. 27foundation · easy

   What is the primary purpose of remote configuration in mobile app lifecycle management?

   • ATo ensure the app works offline
   • BTo increase the app's download size
   • CTo replace the need for version control
   • DTo change app behavior or content without requiring an app store update
   Reveal Solution Discussion Select an answer first
4. 28application · medium

   A global logistics company needs a mobile app for its drivers to receive delivery assignments, update shipment status, and capture proof of delivery. The company uses Salesforce for CRM and has a custom legacy system for route optimization. Drivers use a mix of Android and iOS devices, and the app must integrate with the legacy system's REST API. The company wants to minimize development effort while ensuring reliable performance. Which platform should the architect recommend?

   • ANative iOS app for all drivers, since iOS devices are more secure
   • BA mobile web app that runs in the browser on any device
   • CNative Android app for all drivers, since Android has a larger market share
   • DA cross-platform app using a framework like React Native or Flutter
   Reveal Solution Discussion Select an answer first
5. 29foundation · easy

   Which type of monitoring is most useful for identifying crashes and performance bottlenecks in a mobile app?

   • ASocial media sentiment analysis
   • BCrash reporting and performance monitoring tools
   • CManual user surveys
   • DApp store ratings
   Reveal Solution Discussion Select an answer first
6. 30application · medium

   A retail company wants to launch a mobile app for customers to browse products, view personalized offers, and make purchases. The company has a limited budget and needs to launch quickly on both iOS and Android. The app must provide a smooth, native-like user experience with access to device features such as camera and push notifications. Which approach best balances cost, speed, and user experience?

   • AUse a cross-platform framework to build one codebase that compiles to native apps
   • BDevelop two separate native apps, one for iOS and one for Android
   • CCreate a mobile-optimized website and wrap it in a simple native shell
   • DBuild a single progressive web app (PWA) that can be installed on the home screen
   Reveal Solution Discussion Select an answer first