: Utilizing trie data structures for prefix lookups.
Routes traffic to the server currently handling the fewest active requests.
: Implementing bidirectional search algorithms.
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Neo4j (for social networks or fraud detection). 3. Caching Strategies
Caching prevents your system from choking on repetitive read requests. Master these three write patterns:
Your first job is to narrow down the scope. Ask questions to establish boundaries: : Utilizing trie data structures for prefix lookups
Decoupling services allows systems to scale independently and remain resilient during traffic spikes.
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In 2021, we talked about managing servers. In 2024, interviewers want to know when to use AWS Lambda or managed Kubernetes (EKS).
Ideal for unstructured data, high write throughput, and horizontal scaling. Key-value stores, document stores, and wide-column stores fit this category. Caching Strategies
Latency numbers (L1 cache vs. Disk read), throughput, and storage math (Daily Active Users × average payload size). 2. The API and Data Model First Approach