Home » Amazon » AWS Certified Developer - Associate 2018 » What AWS service should be used to accomplish this?
An organization is storing large files in Amazon S3, and is writing a web application to display meta-data about the files to end-users. Based on the metadata a user selects an object to download. The organization needs a mechanism to index the files and provide single-digit millisecond latency retrieval for the metadata.
What AWS service should be used to accomplish this?
A. Amazon DynamoDB
B. Amazon EC2
C. AWS Lambda
D. Amazon RDS
Correct Answer: A
Explanation/Reference:
Amazon DynamoDB is a fast and flexible NoSQL database service for all applications that need consistent, single-digit millisecond latency at any scale. It is a fully managed database and supports both document and key-value data models. Its flexible data model and reliable performance make it a great fit for mobile, web, gaming, ad-tech, Internet of Things (IoT), and many other applications. Reference https://docs.aws.amazon.com/aws-technical-content/latest/aws-overview/ database-services.html
