AWS-Certified-Solutions-Architect-Professional Free Practice Test

- (Exam Topic 1)
A company built an ecommerce website on AWS using a three-tier web architecture. The application is
Java-based and composed of an Amazon CloudFront distribution, an Apache web server layer of Amazon EC2 instances in an Auto Scaling group, and a backend Amazon Aurora MySQL database.
Last month, during a promotional sales event, users reported errors and timeouts while adding items to their shopping carts. The operations team recovered the logs created by the web servers and reviewed Aurora DB cluster performance metrics. Some of the web servers were terminated before logs could be collected and the Aurora metrics were not sufficient for query performance analysis.
Which combination of steps must the solutions architect take to improve application performance visibility during peak traffic events? (Select THREE.)

1. A. Configure the Aurora MySQL DB cluster to publish slow query and error logs to Amazon CloudWatch Logs.
2. B. Implement the AWS X-Ray SDK to trace incoming HTTP requests on the EC2 instances and implement tracing of SQL queries with the X-Ray SDK for Java.
3. C. Configure the Aurora MySQL DB cluster to stream slow query and error logs to Amazon Kinesis.
4. D. Install and configure an Amazon CloudWatch Logs agent on the EC2 instances to send the Apache logs to CloudWatch Logs.
5. E. Enable and configure AWS CloudTrail to collect and analyze application activity from Amazon EC2 and Aurora.
6. F. Enable Aurora MySQL DB cluster performance benchmarking and publish the stream to AWS X-Ray.

Correct Answer: ABD
https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/USER_LogAccess.Concepts.MySQL.html# https://aws.amazon.com/blogs/mt/simplifying-apache-server-logs-with-amazon-cloudwatch-logs-insights/ https://docs.aws.amazon.com/xray/latest/devguide/xray-sdk-dotnet-messagehandler.html https://docs.aws.amazon.com/xray/latest/devguide/xray-sdk-java-sqlclients.html

- (Exam Topic 1)
A company has a policy that all Amazon EC2 instances that are running a database must exist within the same subnets in a shared VPC Administrators must follow security compliance requirements and are not allowed to directly log in to the shared account All company accounts are members of the same organization in AWS Organizations. The number of accounts will rapidly increase as the company grows.
A solutions architect uses AWS Resource Access Manager to create a resource share in the shared account What is the MOST operationally efficient configuration to meet these requirements?

1. A. Add the VPC to the resource shar
2. B. Add the account IDs as principals
3. C. Add all subnets within the VPC to the resource shar
4. D. Add the account IDs as principals
5. E. Add all subnets within the VPC to the resource shar
6. F. Add the organization as a principal.
7. G. Add the VPC to the resource shar
8. H. Add the organization as a principal

Correct Answer: C
https://docs.aws.amazon.com/ram/latest/userguide/getting-started-sharing.html#getting-started-sharing-create To restrict resource sharing to only principals in your organization, choose Allow sharing with principals in your organization only.
https://docs.aws.amazon.com/ram/latest/userguide/ram-ug.pdf

- (Exam Topic 2)
A global media company is planning a multi-Region deployment of an application. Amazon DynamoDB global tables will back the deployment to keep the user experience consistent across the two continents where users are concentrated. Each deployment will have a public Application Load Balancer (ALB). The company manages public DNS internally. The company wants to make the application available through an apex domain.
Which solution will meet these requirements with the LEAST effort?

1. A. Migrate public DNS to Amazon Route 53. Create CNAME records for the apex domain to point to the AL
2. B. Use a geolocation routing policy to route traffic based on user location.
3. C. Place a Network Load Balancer (NLB) in front of the AL
4. D. Migrate public DNS to Amazon Route 53.Create a CNAME record for the apex domain to point to the NLB's static IP addres
5. E. Use a geolocation routing policy to route traffic based on user location.
6. F. Create an AWS Global Accelerator accelerator with multiple endpoint groups that target endpoints in appropriate AWS Region
7. G. Use the accelerator's static IP address to create a record in public DNS for the apex domain.
8. H. Create an Amazon API Gateway API that is backed by AWS Lambda in one of the AWS Regions.Configure a Lambda function to route traffic to application deployments by using the round robin metho
9. I. Create CNAME records for the apex domain to point to the API's URL.

Correct Answer: C

- (Exam Topic 2)
A car rental company has built a serverless REST API to provide data to its mobile app. The app consists of an Amazon API Gateway API with a Regional endpoint, AWS Lambda functions and an Amazon Aurora MySQL Serverless DB cluster The company recently opened the API to mobile apps of partners A significant increase in the number of requests resulted causing sporadic database memory errors Analysis of the API traffic indicates that clients are making multiple HTTP GET requests for the same queries in a short period of time Traffic is concentrated during business hours, with spikes around holidays and other events
The company needs to improve its ability to support the additional usage while minimizing the increase in costs associated with the solution.
Which strategy meets these requirements?

1. A. Convert the API Gateway Regional endpoint to an edge-optimized endpoint Enable caching in the production stage.
2. B. Implement an Amazon ElastiCache for Redis cache to store the results of the database calls Modify the Lambda functions to use the cache
3. C. Modify the Aurora Serverless DB cluster configuration to increase the maximum amount of available memory
4. D. Enable throttling in the API Gateway production stage Set the rate and burst values to limit the incoming calls

Correct Answer: A

- (Exam Topic 2)
A company wants to use AWS to create a business continuity solution in case the company's main on-premises application fails. The application runs on physical servers that also run other applications. The on-premises application that the company is planning to migrate uses a MySQL database as a data store. All the company's on-premises applications use operating systems that are compatible with Amazon EC2.
Which solution will achieve the company's goal with the LEAST operational overhead?

1. A. Install the AWS Replication Agent on the source servers, including the MySQL server
2. B. Set up replication for all server
3. C. Launch test instances for regular drill
4. D. Cut over to the test instances to fail over the workload in the case of a failure event.
5. E. Install the AWS Replication Agent on the source servers, including the MySQL server
6. F. Initialize AWS Elastic Disaster Recovery in the target AWS Regio
7. G. Define the launch setting
8. H. Frequently perform failover and fallback from the most recent point in time.
9. I. Create AWS Database Migration Service (AWS DMS) replication servers and a target Amazon Aurora MySQL DB cluster to host the databas
10. J. Create a DMS replication task to copy the existing data to the target DB cluste
11. K. Create a local AWS Schema Conversion Tool (AWS SCT) change data capture(CDC) task to keep the data synchronize
12. L. Install the rest of the software on EC2 instances by starting with a compatible base AMI.
13. M. Deploy an AWS Storage Gateway Volume Gateway on premise
14. N. Mount volumes on all on-premises server
15. O. Install the application and the MySQL database on the new volume
16. P. Take regular snapshot
17. Q. Install all the software on EC2 Instances by starting with a compatible base AM
18. R. Launch a Volume Gateway on an EC2 instanc
19. S. Restore the volumes from the latest snapsho
20. T. Mount the new volumes on the EC2 instances in the case of a failure event.

Correct Answer: C