DAS-C01 Question #132: Real Exam Question with Answer & Explanation

Question

A manufacturing company wants to create an operational analytics dashboard to visualize metrics from equipment in near-real time. The company uses Amazon Kinesis Data Streams to stream the data to other applications. The dashboard must automatically refresh every 5 seconds. A data analytics specialist must design a solution that requires the least possible implementation effort. Which solution meets these requirements?

Options

• AUse Amazon Kinesis Data Firehose to store the data in Amazon S3. Use Amazon QuickSight to
• BUse Apache Spark Streaming on Amazon EMR to read the data in near-real time. Develop a
• CUse Amazon Kinesis Data Firehose to push the data into an Amazon Elasticsearch Service
• DUse AWS Glue streaming ETL to store the data in Amazon S3. Use Amazon QuickSight to build

Explanation

{"question_number": 1, "correct_answer": "C", "explanation": "The requirement is near-real-time visualization with a 5-second refresh and least implementation effort. Option C uses Amazon Kinesis Data Firehose to push data into Amazon Elasticsearch Service (now OpenSearch Service), then uses Kibana - which is natively bundled with OpenSearch - as the dashboard. Kibana has a built-in auto-refresh feature that supports intervals as low as 5 seconds, requiring no custom development. Option A and D rely on QuickSight, which does not natively support sub-minute auto-refresh. Option B requires standing up an EMR cluster and custom Spark Streaming code, significantly increasing implementation effort.", "generated_by": "claude-sonnet", "llm_judge_score": 3}

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