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Load balancers distribute traffic across multiple servers to enhance performance and reliability.

L4 and L7 load balancers differ in how they route network traffic based on layers of the OSI model.

Distributed backpressure helps manage the flow of work between services to prevent overload.

Load shedding helps systems reject excess requests to maintain performance during high demand.

Cache breakdowns can overwhelm databases, but request coalescing solves this issue.

API Gateway, Proxy, and Load Balancer serve different roles in managing requests and traffic in systems.

Eager rebalancing revokes all assignments, while cooperative allows incremental changes.

Scaling databases involves deciding whether to enhance read or write capabilities based on traffic patterns.