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Home Forums AWS AWS Certified Solutions Architect Associate Before you purchase, just know that some of these questions could be better.. Reply To: Before you purchase, just know that some of these questions could be better..

  • Lifelong1250

    Member
    January 15, 2024 at 5:30 am

    Question: A financial firm is designing an application architecture for its online
    trading platform that must have high availability and fault tolerance.
    Their Solutions Architect configured the application to use an Amazon S3
    bucket located in the us-east-1 region to store large amounts of
    intraday financial data. The stored financial data in the bucket must
    not be affected even if there is an outage in one of the Availability
    Zones or if there’s a regional service failure.

    What should the Architect do to avoid any costly service disruptions and ensure data durability?

    The answer is to enable cross-region replication on the bucket.

    OK that’s fine but if you lose an entire region, and that app is only in one region then no one can access that data via the app. So really, your service is in-fact disrupted. Wouldn’t the question be better if it stated that the application is using failover DNS or even latency-based routing (with health checking) to ensure survival of lost region.