A Data Science Team Is Designing a Dataset Repository Where

question 23

Multiple Choice

A Data Science team is designing a dataset repository where it will store a large amount of training data commonly used in its machine learning models. As Data Scientists may create an arbitrary number of new datasets every day, the solution has to scale automatically and be cost-effective. Also, it must be possible to explore the data using SQL. Which storage scheme is MOST adapted to this scenario?

• A) Store datasets as files in Amazon S3.
• B) Store datasets as files in an Amazon EBS volume attached to an Amazon EC2 instance.
• C) Store datasets as tables in a multi-node Amazon Redshift cluster.
• D) Store datasets as global tables in Amazon DynamoDB.

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Definitions:

Variable Overhead Efficiency Variance

The difference between the actual variable overhead incurred and the expected (standard) variable overhead based on the efficient usage of manufacturing resources.

Direct Material Used

The raw materials that are directly included in the finished product, easily traceable to specific goods or batches of goods.

Variable Manuf. Overhead

Expenses associated with manufacturing that vary directly with the level of production output, such as materials and utilities.

Standard Variable Overhead Rate

A predetermined rate applied to estimate the variable overheads based on a specific activity base.