Question 70
A professional architect is reviewing two independent workstreams. Requirement A: A global media site sends repeated uncached misses to an expensive origin even with widespread CloudFront edge caches. Requirement B: A production deployment causes an outage because all old tasks were removed before new code passed tests. Select TWO actions, one for each independently scoped requirement.
Explanation
Correct Answers
This action meets the independently stated requirement B: A production deployment causes an outage because all old tasks were removed before new code passed tests. Blue-green promotion protects a known-good environment until replacement quality is established. A direct acceptance check is: New instances become healthy before major traffic shift and rollback restores the previous code path.
This action meets the independently stated requirement A: A global media site sends repeated uncached misses to an expensive origin even with widespread CloudFront edge caches. CloudFront Origin Shield can consolidate cache misses through an additional regional layer. A direct acceptance check is: Origin request count drops under a multi-edge cache miss test while freshness remains correct.
Incorrect Answers
This action targets a different technical need: Two Regions are deployed but customer requests stay routed to the failed primary endpoint indefinitely. It does not replace either required solution in A or B. DNS failover needs a health-signal and routing policy that actually switches answers; verify the two stated requirements independently rather than accepting an unrelated change.
This action targets a different technical need: Operations retains detached EBS volumes after instance termination and pays for unused storage for months. It does not replace either required solution in A or B. EBS storage billing continues for allocated volumes until they are deleted or otherwise changed; verify the two stated requirements independently rather than accepting an unrelated change.
This action targets a different technical need: An EC2 application needs sustained random IOPS independent of EBS volume storage-size growth. It does not replace either required solution in A or B. gp3 separates baseline volume storage size from configurable IOPS and throughput within limits; verify the two stated requirements independently rather than accepting an unrelated change.