SAP-C02 Free Practice Test

- (Exam Topic 3)
A company has an application that uses an Amazon Aurora PostgreSQL DB cluster for the application's database. The DB cluster contains one small primary instance and three larger replica instances. The application runs on an AWS Lambda function. The application makes many short-lived connections to the database's replica instances to perform read-only operations.
During periods of high traffic, the application becomes unreliable and the database reports that too many connections are being established. The frequency of high-traffic periods is unpredictable.
Which solution will improve the reliability of the application?

1. A. Use Amazon RDS Proxy to create a proxy for the DB cluste
2. B. Configure a read-only endpoint for the prox
3. C. Update the Lambda function to connect to the proxy endpoint.
4. D. Increase the max_connections setting on the DB cluster's parameter grou
5. E. Reboot all the instances in the DB cluste
6. F. Update the Lambda function to connect to the DB cluster endpoint.
7. G. Configure instance scaling for the DB cluster to occur when the DatabaseConnections metric is close to the max _ connections settin
8. H. Update the Lambda function to connect to the Aurora reader endpoint.
9. I. Use Amazon RDS Proxy to create a proxy for the DB cluste
10. J. Configure a read-only endpoint for the Aurora Data API on the prox
11. K. Update the Lambda function to connect to the proxy endpoint.

Correct Answer: A

- (Exam Topic 3)
A company wants to manage the costs associated with a group of 20 applications that are infrequently used, but are still business-critical, by migrating to AWS. The applications are a mix of Java and Node.js spread across different instance clusters. The company wants to minimize costs while standardizing by using a single deployment methodology.
Most of the applications are part of month-end processing routines with a small number of concurrent users, but they are occasionally run at other times Average application memory consumption is less than 1 GB. though some applications use as much as 2.5 GB of memory during peak processing. The most important application in the group is a billing report written in Java that accesses multiple data sources and often runs for several hours.
Which is the MOST cost-effective solution?

1. A. Deploy a separate AWS Lambda function tor each applicatio
2. B. Use AWS CloudTrail logs and Amazon CloudWatch alarms to verify completion of critical jobs.
3. C. Deploy Amazon ECS containers on Amazon EC2 with Auto Scaling configured for memory utilization of 75%. Deploy an ECS task for each application being migrated with ECS task scalin
4. D. Monitor services and hosts by using Amazon CloudWatch.
5. E. Deploy AWS Elastic Beanstalk for each application with Auto Scaling to ensure that all requests have sufficient resource
6. F. Monitor each AWS Elastic Beanstalk deployment by using CloudWatch alarms.
7. G. Deploy a new Amazon EC2 instance cluster that co-hosts all applications by using EC2 Auto Scaling and Application Load Balancer
8. H. Scale cluster size based on a custom metric set on instance memory utilizatio
9. I. Purchase 3-year Reserved Instance reservations equal to the GroupMaxSize parameter of the Auto Scaling group.

Correct Answer: B
https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/AWSHowTo.cloudwatch.html Elastic Beanstalk automatically uses Amazon CloudWatch to help you monitor your application and environment status. You can navigate to the Amazon CloudWatch console to see your dashboard and get an overview of all of your resources as well as your alarms. You can also choose to view more metrics or add custom metrics.

- (Exam Topic 1)
A weather service provides high-resolution weather maps from a web application hosted on AWS in the
eu-west-1 Region. The weather maps are updated frequently and stored in Amazon S3 along with static HTML content. The web application is fronted by Amazon CloudFront.
The company recently expanded to serve users in the us-east-1 Region, and these new users report that viewing their respective weather maps is slow from time to time.
Which combination of steps will resolve the us-east-1 performance issues? (Choose two.)

1. A. Configure the AWS Global Accelerator endpoint for the S3 bucket in eu-west-1. Configure endpoint groups for TCP ports 80 and 443 in us-east-1.
2. B. Create a new S3 bucket in us-east-1. Configure S3 cross-Region replication to synchronize from the S3 bucket in eu-west-1.
3. C. Use Lambda@Edge to modify requests from North America to use the S3 Transfer Acceleration endpoint in us-east-1.
4. D. Use Lambda@Edge to modify requests from North America to use the S3 bucket in us-east-1.
5. E. Configure the AWS Global Accelerator endpoint for us-east-1 as an origin on the CloudFront distributio
6. F. Use Lambda@Edge to modify requests from North America to use the new origin.

Correct Answer: BD
https://aws.amazon.com/about-aws/whats-new/2016/04/transfer-files-into-amazon-s3-up-to-300-percent-faster/

- (Exam Topic 2)
A company has an application that runs on Amazon EC2 instances in an Amazon EC2 Auto Scaling group. The company uses AWS CodePipeline to deploy the application. The instances that run in the Auto Scaling group are constantly changing because of scaling events.
When the company deploys new application code versions, the company installs the AWS CodeDeploy agent on any new target EC2 instances and associates the instances with the CodeDeploy deployment group. The application is set to go live within the next 24 hours.
What should a solutions architect recommend to automate the application deployment process with the LEAST amount of operational overhead?

1. A. Configure Amazon EventBridge to invoke an AWS Lambda function when a new EC2 instance is launched into the Auto Scaling grou
2. B. Code the Lambda function to associate the EC2 instances with the CodeDeploy deployment group.
3. C. Write a script to suspend Amazon EC2 Auto Scaling operations before the deployment of new code When the deployment is complete, create a new AMI and configure the Auto Scaling group's launch template to use the new AMI for new launche
4. D. Resume Amazon EC2 Auto Scaling operations.
5. E. Create a new AWS CodeBuild project that creates a new AMI that contains the new code Configure CodeBuild to update the Auto Scaling group's launch template to the new AM
6. F. Run an Amazon EC2 Auto Scaling instance refresh operation.
7. G. Create a new AMI that has the CodeDeploy agent installe
8. H. Configure the Auto Scaling group's launch template to use the new AM
9. I. Associate the CodeDeploy deployment group with the Auto Scaling group instead of the EC2 instances.

Correct Answer: D
https://docs.aws.amazon.com/codedeploy/latest/userguide/integrations-aws-auto-scaling.html

- (Exam Topic 3)
A company implements a containerized application by using Amazon Elastic Container Service (Amazon ECS) and Amazon API Gateway. The application data is stored in Amazon Aurora databases and Amazon DynamoDB databases The company automates infrastructure provisioning by using AWS CloudFormation The company automates application deployment by using AWS CodePipeline.
A solutions architect needs to implement a disaster recovery (DR) strategy that meets an RPO of 2 hours and an RTO of 4 hours.
Which solution will meet these requirements MOST cost-effectively'?

1. A. Set up an Aurora global database and DynamoDB global tables to replicate the databases to a secondary AWS Regio
2. B. In the primary Region and in the secondary Region, configure an API Gateway API with a Regional Endpoint Implement Amazon CloudFront with origin failover to route traffic to the secondary Region during a DR scenario
3. C. Use AWS Database Migration Service (AWS DMS). Amazon EventBridg
4. D. and AWS Lambda to replicate the Aurora databases to a secondary AWS Region Use DynamoDB Streams EventBridge, and Lambda to replicate the DynamoDB databases to the secondary Regio
5. E. In the primary Region and in the secondary Region, configure an API Gateway API with a Regional Endpoint Implement Amazon Route 53 failover routing to switch traffic from the primary Region to the secondary Region.
6. F. Use AWS Backup to create backups of the Aurora databases and the DynamoDB databases in a secondary AWS Regio
7. G. In the primary Region and in the secondary Region, configure an API Gateway API with a Regional endpoin
8. H. Implement Amazon Route 53 failover routing to switch traffic from the primary Region to the secondary Region
9. I. Set up an Aurora global database and DynamoDB global tables to replicate the databases to a secondary AWS Regio
10. J. In the primary Region and in the secondaryRegion, configure an API Gateway API with a Regional endpoint Implement Amazon Route 53 failover routing to switch traffic from the primary Region to the secondary Region

Correct Answer: C
https://aws.amazon.com/blogs/database/cost-effective-disaster-recovery-for-amazon-aurora-databases-using-aws