Mobile Platform Knowledge Questions

Understanding the iOS and Android mobile platforms, their development ecosystems, and the practical tradeoffs of native and cross platform approaches. Topics include platform languages and toolchains such as Swift and Objective C for iOS and Kotlin and Java for Android, platform architecture and application lifecycle, user interface frameworks and design guidelines, performance and memory considerations, platform specific security and permission models, testing strategies and device fragmentation, build and release processes including app store distribution and versioning, continuous integration and continuous delivery for mobile, and interoperability with backend services. Candidates should be able to explain when to choose native versus cross platform solutions, discuss debugging and profiling tools, and describe how platform constraints influence design and operational decisions.