AWS Academy Cloud Architecting Module 13 Answers

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

A. Open-source code
B. Industry-standard interfaces
C. Hidden implementation
D. Specialized function
E. HTTP(S) communication
F. Independence from other components

Ans – C, D, F

What is a container?

A. An operating system that runs a virtual machine
B. A method of operating system virtualization
C. A virtual storage location in the cloud
D. A portable package of code and libraries

Ans – B

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

A. Create services that each provide a distinct function of the application, and run each service in a separate container that Amazon ECS manages.
B. Create services that each provide a distinct function of the application, and run each service in a single container that Amazon ECS manages.
C. Port the application to a new image and run it in a container that Amazon ECS manages.
D. Refactor the application and centralize common functions to create a smaller code footprint

Ans – A

What is AWS Fargate?

A. A fully managed service for orchestrating container clusters
B. A tool for developing software that uses field-programmable gate arrays (FPGA)
C. A service that seamlessly extends AWS services to edge devices
D. A service that enables you to run containers without needing to manage servers or clusters

Ans – D

What is a serverless architecture in AWS?

A. An architecture that does not use any on-premises servers
B. An architecture that only uses managed services
C. An architecture where you do not provision or manage infrastructure
D. An architecture that uses microservices instead of monolithic servers

Ans – C

What are the benefits of serverless computing in AWS? (Select THREE).

A. Lower total cost of ownership
B. Less complicated software architectures
C. More focus on the application
D. Ability to build microservice applications
E. Looser coupling between components
F. Automatic fault tolerance

Ans – A, C, D

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

A. Provision enough function instances to meet the maximum predicted load
B. Launch functions in Auto Scaling groups
C. Enable automatic scaling in the function
D. Do nothing special because functions scale automatically

Ans – D

An environmental science organisation 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?

A. Create web proxy servers on Amazon EC2 instances in an Auto Scaling group, which is served by an Elastic Load Balancing load balancer.
B. Create user accounts in the organizations’ system to allow access
C. Create a public interface to the sensors and databases by using Amazon API Gateway.
D. Create a microservices architecture by using Amazon ECS

Ans – C

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

A. Update inventory and initiate shipment when a customer purchases an item on an ecommerce site
B. Send messages to multiple Amazon EC2 instances when a file is created or modified in a Amazon S3 bucket
C. Consolidate data from multiple databases into unified reports
D. Notify a group of email addresses when the costs for an AWS account exceed a threshold.
E. Deploy different kinds of infrastructure that are based on variables
F. Coordinate multi-step analytics and machine learning workflows

Ans –

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

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

Ans – A?

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