Answer
Use acknowledgments, retries, DLQs, idempotent consumers, and transactional outbox pattern.
Quick Answer
Reliable messaging strategies: at-least-once delivery (broker retries until ack - make consumers idempotent), exactly-once (Kafka transactions, harder to achieve), persistent storage in the broker (messages survive restarts), acknowledgements (consumer explicitly acks after processing), dead-letter queues for messages that repeatedly fail processing.
S
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