Architecture, System Design & DSA Questions
📖 Concept
Architecture Questions (30) test your ability to design and defend mobile system decisions.
System Design Questions (20) test your ability to design complete mobile systems from requirements to implementation.
DSA Questions (20) relevant to mobile/frontend — arrays, strings, trees, graphs, and mobile-specific data structures.
These questions represent the most frequently asked topics at top companies for Senior/Staff React Native roles.
💻 Code Example
1// Questions are organized in the interviewQuestions array below.2// Architecture, System Design, and DSA questions with expected answers.
🏋️ Practice Exercise
Practice Protocol:
- Architecture: Practice explaining decisions in 3-5 minutes (interview time box)
- System Design: Practice drawing architecture diagrams on a whiteboard (or iPad)
- DSA: Solve on paper/plain editor first, then verify in an IDE
- Time yourself — 30 minutes for system design, 25 minutes for DSA
- After each practice session, note what you'd improve and retry in 3 days
⚠️ Common Mistakes
In system design, jumping to implementation without clarifying requirements — spend 5 minutes on requirements
In architecture questions, giving the 'textbook' answer without trade-offs — always discuss WHY and WHEN
In DSA, optimizing prematurely — start with brute force, optimize incrementally, explain each step
Not drawing diagrams in system design — visual communication is expected at senior level
Giving one-sided answers — always present trade-offs, alternatives considered, and decision rationale
💼 Interview Questions
🎤 Mock Interview
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