[Developer] AWS Amplify

Question 1

What is the primary purpose of AWS Amplify?

Answer 1

A complete set of tools and services for building secure, scalable full-stack web and mobile applications on AWS, focusing on the frontend developer experience.

Question 2

What are the three main components of the Amplify ecosystem?

Answer 2

1. Amplify Framework (CLI & Libraries)
2. Amplify Studio/Admin UI (Visual interface for backend setup)
3. Amplify Hosting (CI/CD & CDN hosting)

Question 3

What does the Amplify CLI do?

Answer 3

It allows developers to configure and provision application backends (Authentication, API, Storage) using a simple command-line interface.

Question 4

What does Amplify use behind the scenes to provision and manage AWS backend resources?

Answer 4

AWS CloudFormation

(or AWS CDK in Amplify Gen 2).

The Amplify CLI generates and manages this Infrastructure as Code.

Question 5

Which core AWS service does Amplify commonly use for Authentication?

Answer 5

Amazon Cognito

Question 6

Which core AWS services does Amplify commonly use for Data?

Answer 6

AWS AppSync with Amazon DynamoDB as the underlying database.

Question 7

What is the primary feature of Amplify Hosting?

Answer 7

Provides fully managed CI/CD and hosting for modern single-page applications (SPAs) and static sites, with global content delivery network (CDN) via Amazon CloudFront.

Question 8

What is an Atomic Deployment ?

(Amplify Hosting feature)

Answer 8

A deployment that ensures all files are uploaded and served together, preventing users from receiving mixed versions of old and new application code during a deployment.

Question 9

What is Amplify DataStore used for?

Answer 9

A local data storage library that simplifies working with distributed data, providing real-time synchronization and offline capabilities (syncing local data to the cloud when online).

Question 10

How can you run end-to-end (E2E) tests within the Amplify Hosting deployment process?

Answer 10

By adding a test phase to the amplify.yml build specification file.

Question 11

When should a developer choose AWS Amplify over AWS Elastic Beanstalk?

Answer 11

Choose Amplify for frontend-heavy, serverless full-stack applications, and rapid prototyping where minimal control over underlying infrastructure is desired.