Your Company Is Storing Millions of Sensitive Transactions Across Thousands

question 502

Multiple Choice

Your company is storing millions of sensitive transactions across thousands of 100-GB files that must be encrypted in transit and at rest. Analysts concurrently depend on subsets of files, which can consume up to 5 TB of space, to generate simulations that can be used to steer business decisions. You are required to design an AWS solution that can cost effectively accommodate the long-term storage and in-flight subsets of data. Which approach can satisfy these objectives?

• A) Use Amazon Simple Storage Service (S3) with server-side encryption, and run simulations on subsets in ephemeral drives on Amazon EC2.
• B) Use Amazon S3 with server-side encryption, and run simulations on subsets in-memory on Amazon EC2.
• C) Use HDFS on Amazon EMR, and run simulations on subsets in ephemeral drives on Amazon EC2.
• D) Use HDFS on Amazon Elastic MapReduce (EMR), and run simulations on subsets in-memory on Amazon Elastic Compute Cloud (EC2).
• E) Store the full data set in encrypted Amazon Elastic Block Store (EBS) volumes, and regularly capture snapshots that can be cloned to EC2 workstations.

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Definitions:

Total Cost

The total expenses a company incurs to produce a specific quantity of goods, encompassing both constant and fluctuating costs.

Marginal Output

The additional output that results from the use of one more unit of a production input, assuming other inputs are constant.

AVC

Average Variable Cost, the per unit cost of variable inputs divided by the total output produced, indicating the variable cost for each unit of output.

ATC

Stands for Average Total Cost, which is the sum of all production costs divided by the quantity of output produced.