Câu 29: AWS Certified Big Data - Specialty (BDS-C00)
An organization uses Amazon Elastic MapReduce(EMR) to process a series of extract-transform-load (ETL) steps that run in sequence. The output of each step must be fully processed in subsequent steps but will not be retained. Which of the following techniques will meet this requirement most efficiently?
Nội dung câu hỏi
An organization uses Amazon Elastic MapReduce(EMR) to process a series of extract-transform-load (ETL) steps that run in sequence. The output of each step must be fully processed in subsequent steps but will not be retained. Which of the following techniques will meet this requirement most efficiently?
Các lựa chọn
Đáp án được giữ gọn theo nhãn A, B, C, D trong phần bình chọn tương tác.
- A. Use the EMR File System (EMRFS) to store the outputs from each step as objects in Amazon Simple Storage Service (S3).
- B. Use the s3n URI to store the data to be processed as objects in Amazon S3. — đáp án hiện tại
- C. Define the ETL steps as separate AWS Data Pipeline activities.
- D. Load the data to be processed into HDFS, and then write the final output to Amazon S3.
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