Module 13

What are characteristics of components in a microservice architecture? (Select THREE)

• Open-source code

• Hidden implementation

• Specialized function

• HTTP(S) communication

• Independence from other components

What is a container ?

• An operating system that runs a virtual machine

• A method of operating system virtualization

• A virtual storage location in the cloud

• A portable package of code and libraries

What is the most effective use of Amazon Elastic Container Service (Amazon ECS) when refactoring a monolithic application to use a microservice architecture?

• Create services that each provide a distinct function of the application, and run each service in a separate container that Amazon ECS manages.

• Create services that each provide a distinct function of the application, and run each service in a single container that Amazon ECS manages.

• Port the application to a new image and run it in a container that Amazon ECS manages.

• Refactor the application and centralize common functions to create a smaller code footprint.

What is AWS Fargate ?

• A fully managed service for orchestrating container clusters

• A tool for developing software that uses field-programmable gate arrays (FPGA)

• A service that seamlessly extends AWS services to edge devices

• A service that enables you to run containers without needing to manage servers or clusters

What is a serverless architecture in Amazon Web Services (AWS)?

• An architecture that does not use any on-premises servers

• An architecture that only uses managed services

• An architecture where you do not provision or manage infrastructure

• An architecture that uses microservices instead of monolithic servers

What are benefits of serverless computing in Amazon Web Services (AWS)? (Select THREE)

• Lower total cost of ownership

• Less complicated software architectures

• More focus on the application

• Ability to build microservice applications

• Looser coupling between components

How can you scale AWS Lambda functions to ensure high availability?

• Provision enough function instances to meet the maximum predicted load

• Launch functions in Auto Scaling groups

• Enable automatic scaling in the function

• Do nothing special because functions scale automatically

An environmental science organization wants to provide HTTPS read-only access to its sensors and databases to any users around the world. The goal is enabling users to create their own custom real-time data visualizations to help improve climate science. Which solution is efficient and secure?

• Create web proxy servers on Amazon EC2 instances in an Auto Scaling group, which is served by an Elastic Load Balancing load balancer.

• Create user accounts in the organizations' systems to allow access.

• Create a public interface to the sensors and databases by using Amazon API Gateway.

• Create a microservices architecture by using Amazon Elastic Container Service (Amazon ECS).

Which workflows are supported by AWS Step Functions? (Select THREE)

• Update inventory and initiate shipment when a customer purchases an item on an ecommerce site

• Send messages to multiple Amazon EC2 instances when a file is created or modified in an Amazon S3 bucket

• Consolidate data from multiple databases into unified reports

• Deploy different kinds of infrastructure that are based on variables

• Coordinate multi-step analytics and machine learning workflows Number

What is a serverless solution for creating a simple web form?

• Host static assets in an Amazon S3 bucket, use an Amazon DynamoDB table, and use Amazon API Gateway and AWS Lambda functions to interact with the database.

• Host website assets in a container in an Amazon ECS cluster, use an Amazon DynamoDB table, and use server-side scripts to interact with the database.

• Host static assets in an Amazon S3 bucket, use an Amazon RDS database, and use Amazon API Gateway and AWS Lambda functions to interact with the database.

• Host website assets in a container in an Amazon ECS cluster, use an Amazon RDS database, and use server-side scripts to interact with the database.