| 1 | How do you use the useReportWebVitals hook to collect performance data from real visitors on your Next.js site? Next.js › Web Vitals & Performance Monitoring | Next.js | Web Vitals & Performance Monitoring | Intermediate |
| 2 | What are Core Web Vitals, and why do they matter for a Next.js application? Next.js › Web Vitals & Performance Monitoring | Next.js | Web Vitals & Performance Monitoring | Beginner |
| 3 | How would you set up ongoing performance monitoring to catch regressions before they significantly affect real users? Next.js › Web Vitals & Performance Monitoring | Next.js | Web Vitals & Performance Monitoring | Advanced |
| 4 | How would you reduce Cumulative Layout Shift on a page that loads ads, images, and web fonts asynchronously? Next.js › Web Vitals & Performance Monitoring | Next.js | Web Vitals & Performance Monitoring | Advanced |
| 5 | What specific techniques help improve the Largest Contentful Paint metric on a typical Next.js page? Next.js › Web Vitals & Performance Monitoring | Next.js | Web Vitals & Performance Monitoring | Intermediate |
| 6 | How would you measure and compare build performance before and after adopting Turbopack for a large existing Next.js project? Next.js › Turbopack & Build Performance | Next.js | Turbopack & Build Performance | Advanced |
| 7 | What strategies help further improve loading performance for image heavy pages beyond the default Image component behavior? Next.js › Image & Font Optimization | Next.js | Image & Font Optimization | Advanced |
| 8 | What performance considerations should you keep in mind when writing middleware, since it runs on every matched request? Next.js › Middleware | Next.js | Middleware | Advanced |
| 9 | What are best practices for managing a large number of redirects on a website that has gone through multiple redesigns over the years? Next.js › Redirects & Rewrites Configuration | Next.js | Redirects & Rewrites Configuration | Advanced |
| 10 | How would you measure and reduce the performance impact of multiple third party scripts on a page, such as analytics, ads, and chat widgets? Next.js › Third-Party Script Optimization | Next.js | Third-Party Script Optimization | Advanced |