A Developer Is Building an AWS Lambda Function That Will

question 431

Multiple Choice

A developer is building an AWS Lambda function that will dynamically generate and send a weekly newsletter to 100,000 users. This newsletter contains both static text and images. The developer needs a fast and highly scalable place to store the images that will be hyperlinked in the newsletter. Where should the developer store these images?

• A) Use an Amazon DynamoDB table with DynamoDB Streams and read capacity auto scaling enabled.
• B) Use an Amazon S3 bucket and S3 Transfer Acceleration to speed up the image download.
• C) Use an Amazon Aurora database with a public DNS endpoint and auto scaling enabled.
• D) Use an Amazon S3 backed Amazon CloudFront distribution with a high Time-to-Live (TTL) to maximize caching.

---

Definitions:

Type II Error

The mistake of failing to reject a false null hypothesis in a statistical test, also known as a false negative.

Control Chart

A tool used in quality control processes to monitor, control, and improve the process quality by plotting data points in time order and identifying any signals of unusual variation.

Type Error

Often refers to a Type I or Type II error in statistical hypothesis testing, misidentification of a true condition.

Null Hypothesis

In statistical hypothesis testing, it is the hypothesis that there is no effect or no difference, and any observed deviation is due to chance.