A Developer Is Testing a Docker-Based Application That Uses the AWS

question 177

Multiple Choice

A Developer is testing a Docker-based application that uses the AWS SDK to interact with Amazon DynamoDB. In the local development environment, the application has used IAM access keys. The application is now ready for deployment onto an ECS cluster. How should the application authenticate with AWS services in production?

• A) Configure an ECS task IAM role for the application to use
• B) Refactor the application to call AWS STS AssumeRole based on an instance role
• C) Configure AWS access key/secret access key environment variables with new credentials
• D) Configure the credentials file with a new access key/secret access key

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Definitions:

Simple Random Sample

A simple random sample of size n from a finite population of size N is a sample selected such that each possible sample of size n has the same probability of being selected.

Probability

An indicator of the probability that a particular event will take place, represented by a numerical value ranging from 0 to 1, with 0 meaning the event cannot happen and 1 meaning the event is certain to happen.

Population

Every individual or item under consideration in a statistical evaluation.

Probability Distribution

A mathematical function that provides the probabilities of occurrence of different possible outcomes in an experiment.