A Company Is Concerned About the Cost of a Large-Scale

question 153

Multiple Choice

A company is concerned about the cost of a large-scale, transactional application using Amazon DynamoDB that only needs to store data for 2 days before it is deleted. In looking at the tables, a Database Specialist notices that much of the data is months old, and goes back to when the application was first deployed. What can the Database Specialist do to reduce the overall cost?

• A) Create a new attribute in each table to track the expiration time and create an AWS Glue transformation to delete entries more than 2 days old.
• B) Create a new attribute in each table to track the expiration time and enable DynamoDB Streams on each table.
• C) Create a new attribute in each table to track the expiration time and enable time to live (TTL) on each table.
• D) Create an Amazon CloudWatch Events event to export the data to Amazon S3 daily using AWS Data Pipeline and then truncate the Amazon DynamoDB table.

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Definitions:

Virtual Communication

The exchange of information and ideas through electronic means when participants are not physically present in the same location.

Nonverbal Signals

Communication cues such as facial expressions, body language, and gestures that convey information or feelings without using words.

Nonverbal Part

The component of communication that does not involve words but includes gestures, facial expressions, and body language.

Distance Interactions

this term refers to the communications or actions that occur between individuals or groups who are not physically co-located, often facilitated by technology.