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Which AWS distributed-tracing service helps a DevOps engineer follow a single request across many services (API Gateway → Lambda → DynamoDB → SNS) with timing breakdowns?
AAmazon Route 53
BAWS X-Ray
CAmazon RDS
DAWS Snowball
Answer & Solution
Correct answer: B. AWS X-Ray
X-Ray is AWS's distributed tracing (per DOP-C02 §4.2). The others aren't tracing platforms.
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