Explain the concept of load balancing in computer networks
This question explores distributing traffic across multiple servers to ensure reliability and performance. It is a key concept in system architecture.
Why Interviewers Ask This
Load balancing is essential for handling high traffic volumes in e-commerce. Interviewers assess your understanding of scalability and fault tolerance. This knowledge is crucial for designing resilient backend systems.
How to Answer This Question
Define load balancing as distributing workloads across multiple computing resources. Explain benefits: high availability, scalability, and reduced latency. Describe algorithms like Round Robin, Least Connections, and IP Hash. Mention hardware vs software load balancers. Discuss health checks.
Key Points to Cover
- Traffic distribution logic
- Scalability benefits
- Algorithm types
- Health check mechanisms
Sample Answer
Load balancing distributes incoming network traffic across multiple servers to ensure no single server becomes overwhelmed. This improves responsiveness, availability, and reliability of applications. Common algorithms i…
Common Mistakes to Avoid
- Confusing with clustering
- Omitting algorithm details
- Ignoring health checks
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