Your Application Provides Data Transformation Services

question 838

Multiple Choice

Your application provides data transformation services. Files containing data to be transformed are first uploaded to Amazon S3 and then transformed by a fleet of spot EC2 instances. Files submitted by your premium customers must be transformed with the highest priority. How should you implement such a system?

• A) Use a DynamoDB table with an attribute defining the priority level. Transformation instances will scan the table for tasks, sorting the results by priority level.
• B) Use Route 53 latency based-routing to send high priority tasks to the closest transformation instances.
• C) Use two SQS queues, one for high priority messages, the other for default priority. Transformation instances first poll the high priority queue; if there is no message, they poll the default priority queue.
• D) Use a single SQS queue. Each message contains the priority level. Transformation instances poll high-priority messages first.

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Definitions:

Service Department Expenses

Costs incurred by the departments within an organization that support but do not directly participate in the production or delivery of goods and services.

Activity Base

A measure used in costing that drives the cost of activities, typically used in activity-based costing.

Service Department Expenses

Costs associated with departments that support the primary operations of a company, like IT support, human resources, and maintenance.

Activity Base

A measure used as a foundation for allocating costs in activity-based costing, representing transactions or events that cause costs to be incurred.