Integration Patterns and Messaging Systems Questions
Understand approaches to integrating different systems: synchronous APIs, asynchronous messaging (queues, topics, events), batch processing, and data synchronization. Know when to use message queues vs. publish-subscribe vs. event streams. Understand the reliability patterns (acknowledgments, retries, dead-letter queues) and consistency implications. Know about API gateways, service discovery, and orchestration. Discuss trade-offs between tight coupling and loose coupling, and how integration choices affect system resilience.
MediumTechnical
0 practiced
A client uses GraphQL and asks about subscription semantics for real-time updates. Explain how GraphQL subscriptions map to pub-sub/event-stream systems, and discuss scaling concerns, connection management (WebSockets), and fallback strategies for clients that cannot maintain persistent connections.
MediumTechnical
0 practiced
Write a short checklist that you would use when evaluating third-party integration platforms (iPaaS) for a customer migrating integrations from home-grown connectors. Include functional, operational, security, and cost criteria.
MediumSystem Design
0 practiced
A real-time streaming platform must support replay of events for debugging and rehydrating downstream state. Design the topic/partitioning and retention policy to support replay for up to 30 days while keeping storage costs reasonable and enabling selective consumer replays.
HardTechnical
0 practiced
A cloud provider's managed queue has unpredictable throughput behavior during peak, causing spikes in visibility timeout and duplicate deliveries. As a Solutions Architect, how would you design an alternative architecture to reduce duplicates and stabilize processing latency while keeping costs reasonable?
MediumSystem Design
0 practiced
A shopping platform must synchronize product data between a central system and dozens of geographically distributed storefronts. Discuss architectural patterns (push, pull, event-driven replication, batch). Recommend a design that balances latency, bandwidth costs, and eventual consistency.
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