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ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question

During design review of a microservices-based order-processing system, you notice that spikes in demand occasionally crash the pricing service, causing upstream services to retry endlessly. To control data flow and avoid cascading failures, you recommend inserting a message queue between the producer and the pricing service. Which queue capability MOST directly addresses the crash risk while still guaranteeing that no orders are lost?

  • Persistent, durable store-and-forward buffering of messages

  • Exactly-once delivery enforced through distributed transactions

  • End-to-end encryption of each message payload

  • Round-robin load balancing across multiple consumer instances

ISC2 Certified Secure Software Lifecycle Professional (CSSLP)
Secure Software Architecture and Design
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