Intermediate~3h
Load Balancing in System DesignInterview Readiness Check
Load balancing algorithms, reverse proxies, horizontal scaling.
load-balancingreverse-proxyhorizontal-scalingnginxround-robin
Learning path
Try a sample question
What is the primary purpose of a load balancer?
A.To cache frequently requested content
B.To encrypt traffic between client and server
C.To distribute incoming requests across multiple backend servers
D.To store session data for stateful applications
Sign up free to take the full check and see the answer with an explanation.
What this module tests
- Conceptual understanding of load balancing fundamentals
- Trade-offs and design decisions in real system scenarios
- load-balancing and reverse-proxy — applied knowledge
- Interview-style reasoning and explanation quality
Free to start
Take the Load Balancing check →
10 questions · Dimension scoring · AI coach feedback · Shareable result
Test your knowledge — free →No credit card · Takes 10–15 min
Frequently asked questions
- What does the Load Balancing check test?
- The check covers load balancing algorithms, reverse proxies, horizontal scaling. Questions span beginner to advanced difficulty and test both conceptual understanding and practical trade-off reasoning.
- What keywords should I know for Load Balancing?
- Key concepts include: load-balancing, reverse-proxy, horizontal-scaling, nginx, round-robin. These frequently appear in system design interviews at product and infrastructure companies.
- How many questions are in the check?
- Each check has 10 questions — a mix of MCQ and short-answer. You get scored by dimension (e.g., scalability, consistency) so you know exactly where to focus.
- How long does it take to study Load Balancing?
- Most engineers spend around 3 hours on this module. The check itself takes about 10–15 minutes. You can retake it up to 3 times per day.
- What prerequisite knowledge do I need before Load Balancing?
- Load Balancing builds on Fundamentals. Complete those first for the best results.
- Is load-balancing, reverse-proxy, horizontal-scaling covered?
- Yes. The Load Balancing module covers load-balancing, reverse-proxy, horizontal-scaling among other key concepts. The check includes questions that reflect real system design interview patterns.