What do load balancing policies in Envoy help achieve?

Load balancing policies in Envoy are designed to ensure that incoming traffic is distributed evenly and consistently across multiple service instances. This is crucial in a microservices architecture, where various instances of a service may be running simultaneously to handle requests. By implementing load balancing, Envoy optimizes resource utilization, enhances the responsiveness of systems, and maintains high availability by preventing any single instance from becoming overwhelmed with traffic. This approach helps achieve a more resilient infrastructure, as it can adapt to changing loads and failure scenarios by redistributing the traffic as necessary.

The other options do not align with the primary goal of load balancing. Increased storage capacity relates to data management rather than traffic management. Reduced complexity in service deployment pertains to deployments and orchestrations, not to the real-time flow of traffic between services. Faster database queries involve optimization techniques specific to databases, separate from load balancing functions within Envoy.