System Design – Load Balancer Algorithms
Practice system design interview questions focused on load balancer algorithms. Cover round-robin, least connections, and consistent hashing approaches. Answer questions and receive feedback on trade-offs and use cases. Ideal for software engineer system design prep. First 2 questions are free with full feedback.
- Level Intermediate
- Questions 12
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Sample system design – load balancer algorithms interview questions
Preview 6 questions from this track in quiz order. In the full quiz you answer one at a time — type or speak — then get a score and feedback.
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What is round-robin load balancing?
What a strong answer includes
Distributes requests sequentially across servers.
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What is least-connections load balancing?
What a strong answer includes
Sends traffic to the server with the fewest active connections.
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When is least-connections better than round-robin?
What a strong answer includes
When requests have varying durations.
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What is weighted round-robin?
What a strong answer includes
Gives more traffic to stronger servers.
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How does IP hash load balancing work?
What a strong answer includes
Routes based on client IP for stickiness.
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What is consistent hashing in load balancing?
What a strong answer includes
Minimizes remapping when servers are added or removed.