Câu 52: AWS Certified Developer Associate(Old)
A company is building an application for stock trading. The application needs sub-millisecond latency for processing trade requests. The company uses AmazonDynamoDB to store all the trading data that is used to process each trading request. A development team performs load testing on the application and finds that the…
Nội dung câu hỏi
A company is building an application for stock trading. The application needs sub-millisecond latency for processing trade requests. The company uses AmazonDynamoDB to store all the trading data that is used to process each trading request. A development team performs load testing on the application and finds that the data retrieval time is higher than expected. The development team needs a solution that reduces the data retrieval time with the least possible effort. Which solution meets these requirements?
Các lựa chọn
Đáp án được giữ gọn theo nhãn A, B, C, D trong phần bình chọn tương tác.
- A. Add local secondary indexes (LSIs) for the trading data.
- B. Store the trading data in Amazon S3, and use S3 Transfer Acceleration.
- C. Add retries with exponential backoff for DynamoDB queries.
- D. Use DynamoDB Accelerator (DAX) to cache the trading data. — đáp án hiện tại
Cộng đồng
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