You now understand rendering strategies for frontend systems.
CSR: JavaScript renders in browser. Good for apps, bad for SEO.
SSR: Server generates HTML per request. Good SEO, server cost.
SSG: Build-time HTML. Fastest, but stale content.
ISR: SSG with background regeneration. Balance of speed and freshness.
Hydration: Attaching JavaScript to server HTML. Watch for mismatches.
Streaming: Progressive HTML delivery for better perceived performance.
Interview approach: Ask about SEO needs, update frequency, and interactivity requirements.