SAA-C03 Free Practice Test

- (Topic 4)
A company has resources across multiple AWS Regions and accounts. A newly hired solutions architect discovers a previous employee did not provide details about the resources invent^. The solutions architect needs to build and map the relationship details of the various workloads across all accounts.
Which solution will meet these requirements in the MOST operationally efficient way?

1. A. Use AWS Systems Manager Inventory to generate a map view from the detailed view report.
2. B. Use AWS Step Functions to collect workload details Build architecture diagrams of theworkloads manually.
3. C. Use Workload Discovery on AWS to generate architecture diagrams of the workloads.
4. D. Use AWS X-Ray to view the workload details Build architecture diagrams with relationships

Correct Answer: C
Workload Discovery on AWS (formerly called AWS Perspective) is a tool that visualizes AWS Cloud workloads. It maintains an inventory of the AWS resources across your accounts and Regions, mapping relationships between them, and displaying them in a web UI. It also allows you to query AWS Cost and Usage Reports, search for resources, save and export architecture diagrams, and more1. By using Workload Discovery on AWS, the solution can build and map the relationship details of the various workloads across all accounts with the least operational effort.
* A. Use AWS Systems Manager Inventory to generate a map view from the detailed view report. This solution will not meet the requirement of building and mapping the relationship details of the various workloads across all accounts, as AWS Systems Manager Inventory is a feature that collects metadata from your managed instances and stores it in a central Amazon S3 bucket. It does not provide a map view or architecture diagrams of the workloads2.
* B. Use AWS Step Functions to collect workload details Build architecture diagrams of the work-loads manually. This solution will not meet the requirement of the least operational effort, as it involves creating and managing state machines to orchestrate the workload details collection, and building architecture diagrams manually.
* D. Use AWS X-Ray to view the workload details Build architecture diagrams with relationships. This solution will not meet the requirement of the least operational effort, as it involves instrumenting your applications with X-Ray SDKs to collect workload details, and building architecture diagrams manually.
Reference URL: https://aws.amazon.com/solutions/implementations/workload-discovery- on-aws/

- (Topic 4)
A company wants lo build a web application on AWS. Client access requests to the website are not predictable and can be idle for a long time. Only customers who have paid a subscription fee can have the ability to sign in and use the web application.
Which combination of steps will meet these requirements MOST cost-effectively? (Select THREE.)

1. A. Create an AWS Lambda function to retrieve user information from Amazon DynamoD
2. B. Create an Amazon API Gateway endpoint to accept RESTful API
3. C. Send the API calls to the Lambda function.
4. D. Create an Amazon Elastic Container Service (Amazon ECS) service behind an Application Load Balancer to retrieve user information from Amazon RD
5. E. Create an Amazon API Gateway endpoint to accept RESTful API
6. F. Send the API calls to the Lambda function.
7. G. Create an Amazon Cogmto user pool to authenticate users
8. H. Create an Amazon Cognito identity pool to authenticate users.
9. I. Use AWS Amplify to serve the frontend web content with HTM
10. J. CSS, and J
11. K. Use an integrated Amazon CloudFront configuration.
12. L. Use Amazon S3 static web hosting with PH
13. M. CS
14. N. and J
15. O. Use Amazon CloudFront to serve the frontend web content.

Correct Answer: ACE
https://docs.aws.amazon.com/AmazonS3/latest/userguide/WebsiteHosting.html

- (Topic 3)
A company is developing an ecommerce application that will consist of a load-balanced front end, a container-based application, and a relational database. A solutions architect needs to create a highly available solution that operates with as little manual intervention as possible.
Which solutions meet these requirements? (Select TWO.)

1. A. Create an Amazon RDS DB instance in Multi-AZ mode.
2. B. Create an Amazon RDS DB instance and one or more replicas in another Availability Zone.
3. C. Create an Amazon EC2 in stance-based Docker cluster to handle the dynamic application load.
4. D. Create an Amazon Elastic Container Service (Amazon ECS) cluster with a Fargate launch type to handle the dynamic application load.
5. E. Create an Amazon Elastic Container Service (Amazon ECS) cluster with an Amazon EC2 launch type to handle the dynamic application load.

Correct Answer: AD
https://docs.aws.amazon.com/AmazonECS/latest/developerguide/Welcome.html
* 1. Relational database: RDS
* 2. Container-based applications: ECS
"Amazon ECS enables you to launch and stop your container-based applications by using simple API calls. You can also retrieve the state of your cluster from a centralized service and have access to many familiar Amazon EC2 features."
* 3. Little manual intervention: Fargate
You can run your tasks and services on a serverless infrastructure that is managed by AWS Fargate. Alternatively, for more control over your infrastructure, you can run your tasks and services on a cluster of Amazon EC2 instances that you manage.

- (Topic 1)
A company runs an on-premises application that is powered by a MySQL database The company is migrating the application to AWS to Increase the application's elasticity and availability
The current architecture shows heavy read activity on the database during times of normal operation Every 4 hours the company's development team pulls a full export of the production database to populate a database in the staging environment During this period, users experience unacceptable application latency The development team is unable to use the staging environment until the procedure completes
A solutions architect must recommend replacement architecture that alleviates the application latency issue The replacement architecture also must give the development team the ability to continue using the staging environment without delay
Which solution meets these requirements?

1. A. Use Amazon Aurora MySQL with Multi-AZ Aurora Replicas for productio
2. B. Populate the staging database by implementing a backup and restore process that uses the mysqldump utility.
3. C. Use Amazon Aurora MySQL with Multi-AZ Aurora Replicas for production Use database cloning to create the staging database on-demand
4. D. Use Amazon RDS for MySQL with a Mufti AZ deployment and read replicas for production Use the standby instance tor the staging database.
5. E. Use Amazon RDS for MySQL with a Multi-AZ deployment and read replicas for productio
6. F. Populate the staging database by implementing a backup and restore process that uses the mysqldump utility.

Correct Answer: B
https://aws.amazon.com/blogs/aws/amazon-aurora-fast-database-cloning/

- (Topic 4)
An application running on an Amazon EC2 instance in VPC-A needs to access files in another EC2 instance in VPC-B. Both VPCs are in separate AWS accounts. The network administrator needs to design a solution to configure secure access to EC2 instance in VPC-B from VPC-A. The connectivity should not have a single point of failure or bandwidth concerns.
Which solution will meet these requirements?

1. A. Set up a VPC peering connection between VPC-A and VPC-B.
2. B. Set up VPC gateway endpoints for the EC2 instance running in VPC-B.
3. C. Attach a virtual private gateway to VPC-B and set up routing from VPC-A.
4. D. Create a private virtual interface (VIF) for the EC2 instance running in VPC-B and add appropriate routes from VPC-A.

Correct Answer: A
AWS uses the existing infrastructure of a VPC to create a VPC peering connection; it is neither a gateway nor a VPN connection, and does not rely on a separate piece of physical hardware. There is no single point of failure for communication or a bandwidth bottleneck. https://docs.aws.amazon.com/vpc/latest/peering/what-is-vpc-peering.html