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Topic: Web & Backend Development (HTML/CSS/JS, PHP/Laravel, APIs). Questions are shared by related courses. View the Coding Fundamentals HTML CSS JavaScript Workshop course →

All Coding Fundamentals HTML CSS JavaScript Workshop interview questions at a glance+

Fresher (0–3 years): Junior Web / Backend Developer

  1. What happens when you type a URL into a browser?
  2. Explain MVC in a framework like Laravel.
  3. Design REST endpoints for a blog.
  4. Which CSS layout is best for a two-dimensional grid?
  5. What does "responsive design" mean?
  6. Which HTTP method is used to create a resource in REST?
  7. In Laravel, Eloquent is…
  8. "let" vs "const" in JavaScript?
  9. Why hash passwords instead of storing them?

Mid-level (3–8 years): Web / Backend Developer

  1. How do you secure a web application?
  2. A page is slow. How do you improve performance end to end?
  3. How do you deploy a Laravel app safely?
  4. CSRF protection in Laravel forms is provided by…
  5. Output escaping ({{ }} in Blade) mainly prevents…
  6. An idempotent API operation…
  7. Laravel queues are used to…
  8. Which HTTP header helps prevent clickjacking?
  9. Core Web Vitals measure…

Experienced (8–15 years): Senior Full-stack / Backend Engineer

  1. Design a scalable architecture for a growing web platform.
  2. How do you modernise a legacy PHP application safely?
  3. How do you design APIs used by many partner companies?
  4. GraphQL vs REST: GraphQL mainly helps when…
  5. Rate limiting and bot protection on forms protect against…
  6. Scaling a PHP app horizontally requires…
  7. Server-side rendering mainly improves…
  8. Backward-compatible API changes include…
  9. Content Security Policy (CSP) helps by…