Answer
Load balancing distributes traffic across multiple service instances. It improves performance and fault tolerance using tools like NGINX, HAProxy, or Envoy.
Quick Answer
Load balancing distributes incoming requests across multiple instances of a service. Without it, one instance gets overwhelmed while others sit idle. In microservices it's critical since services scale to multiple instances. Solutions: round-robin, least-connections, or weighted. Tools: NGINX, HAProxy, AWS ALB, Kubernetes Services.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ