SAP-C02 Free Practice Test

- (Exam Topic 1)
A company recently deployed an application on AWS. The application uses Amazon DynamoDB. The company measured the application load and configured the RCUs and WCUs on the DynamoDB table to
match the expected peak load. The peak load occurs once a week for a 4-hour period and is double the average load. The application load is close to the average load tor the rest of the week. The access pattern includes many more writes to the table than reads of the table.
A solutions architect needs to implement a solution to minimize the cost of the table. Which solution will meet these requirements?

1. A. Use AWS Application Auto Scaling to increase capacity during the peak perio
2. B. Purchase reserved RCUs and WCUs to match the average load.
3. C. Configure on-demand capacity mode for the table.
4. D. Configure DynamoDB Accelerator (DAX) in front of the tabl
5. E. Reduce the provisioned read capacity to match the new peak load on the table.
6. F. Configure DynamoDB Accelerator (DAX) in front of the tabl
7. G. Configure on-demand capacity mode for the table.

Correct Answer: D
This solution meets the requirements by using Application Auto Scaling to automatically increase capacity during the peak period, which will handle the double the average load. And by purchasing reserved RCUs and WCUs to match the average load, it will minimize the cost of the table for the rest of the week when the load is close to the average.

- (Exam Topic 2)
A company that provides image storage services wants to deploy a customer-lacing solution to AWS. Millions of individual customers will use the solution. The solution will receive batches of large image files, resize the files, and store the files in an Amazon S3 bucket for up to 6 months.
The solution must handle significant variance in demand. The solution must also be reliable at enterprise scale and have the ability to rerun processing jobs in the event of failure.
Which solution will meet these requirements MOST cost-effectively?

1. A. Use AWS Step Functions to process the S3 event that occurs when a user stores an imag
2. B. Run an AWS Lambda function that resizes the image in place and replaces the original file in the S3 bucke
3. C. Create an S3 Lifecycle expiration policy to expire all stored images after 6 months.
4. D. Use Amazon EventBridge to process the S3 event that occurs when a user uploads an imag
5. E. Run an AWS Lambda function that resizes the image in place and replaces the original file in the S3 bucke
6. F. Create an S3 Lifecycle expiration policy to expire all stored images after 6 months.
7. G. Use S3 Event Notifications to invoke an AWS Lambda function when a user stores an imag
8. H. Use the Lambda function to resize the image in place and to store the original file in the S3 bucke
9. I. Create an S3 Lifecycle policy to move all stored images to S3 Standard-Infrequent Access (S3 Standard-IA) after 6 months.
10. J. Use Amazon Simple Queue Service (Amazon SQS) to process the S3 event that occurs when a user stores an imag
11. K. Run an AWS Lambda function that resizes the image and stores the resized file in an S3 bucket that uses S3 Standard-Infrequent Access (S3 Standard-IA). Create an S3 Lifecycle policy to move all stored images to S3 Glacier Deep Archive after 6 months.

Correct Answer: C
S3 Event Notifications is a feature that allows users to receive notifications when certain events happen in an S3 bucket, such as object creation or deletion1. Users can configure S3 Event Notifications to invoke an AWS Lambda function when a user stores an image in the bucket. Lambda is a serverless compute service that runs code in response to events and automatically manages the underlying compute resources2. The Lambda function can resize the image in place and store the original file in the same S3 bucket. This way, the solution can handle significant variance in demand and be reliable at enterprise scale. The solution can also rerun processing jobs in the event of failure by using the retry and dead-letter queue features of Lambda2. S3 Lifecycle is a feature that allows users to manage their objects so that they are stored cost-effectively throughout their lifecycle3. Users can create an S3 Lifecycle policy to move all stored images to S3 Standard-Infrequent Access (S3 Standard-IA) after 6 months. S3 Standard-IA is a storage class designed for data that is accessed less frequently, but requires rapid access when needed4. It offers a lower storage cost than S3 Standard, but charges a retrieval fee. Therefore, moving the images to S3 Standard-IA after 6 months can reduce the storage cost for the solution.
Option A is incorrect because using AWS Step Functions to process the S3 event that occurs when a user stores an image is not necessary or cost-effective. AWS Step Functions is a service that lets users coordinate multiple AWS services into serverless workflows. However, for this use case, a single Lambda function can handle the image resizing task without needing Step Functions.
Option B is incorrect because using Amazon EventBridge to process the S3 event that occurs when a user uploads an image is not necessary or cost-effective. Amazon EventBridge is a serverless event bus service that makes it easy to connect applications with data from a variety of sources. However, for this use case, S3 Event Notifications can directly invoke the Lambda function without needing EventBridge.
Option D is incorrect because using Amazon Simple Queue Service (Amazon SQS) to process the S3 event that occurs when a user stores an image is not necessary or cost-effective. Amazon SQS is a fully managed message queuing service that enables users to decouple and scale microservices, distributed systems, and serverless applications. However, for this use case, S3 Event Notifications can directly invoke the Lambda function without needing SQS. Moreover, storing the resized file in an S3 bucket that uses S3 Standard-IA will incur a retrieval fee every time the file is accessed, which may not be cost-effective for frequently accessed files.

- (Exam Topic 3)
A North American company with headquarters on the East Coast is deploying a new web application running on Amazon EC2 in the us-east-1 Region. The application should dynamically scale to meet user demand and maintain resiliency. Additionally, the application must have disaster recover capabilities in an active-passive configuration with the us-west-1 Region.
Which steps should a solutions architect take after creating a VPC in the us-east-1 Region?

1. A. Create a VPC in the us-west-1 Regio
2. B. Use inter-Region VPC peering to connect both VPC
3. C. Deploy an Application Load Balancer (ALB) spanning multiple Availability Zones (AZs) to the VPC in theus-east-1 Regio
4. D. Deploy EC2 instances across multiple AZs in each Region as part of an Auto Scalinggroup spanning both VPCs and served by the ALB.
5. E. Deploy an Application Load Balancer (ALB) spanning multiple Availability Zones (AZs) to the VPC in the us-east-1 Regio
6. F. Deploy EC2 instances across multiple AZs as part of an Auto Scaling group served by the AL
7. G. Deploy the same solution to the us-west-1 Regio
8. H. Create an Amazon Route 53 record set with a failover routing policy and health checks enabled to provide high availability across both Regions.
9. I. Create a VPC in the us-west-1 Regio
10. J. Use inter-Region VPC peering to connect both VPC
11. K. Deploy an Application Load Balancer (ALB) that spans both VPC
12. L. Deploy EC2 instances across multiple Availability Zones as part of an Auto Scaling group in each VPC served by the AL
13. M. Create an Amazon Route 53 record that points to the ALB.
14. N. Deploy an Application Load Balancer (ALB) spanning multiple Availability Zones (AZs) to the VPC in the us-east-1 Regio
15. O. Deploy EC2 instances across multiple AZs as part of an Auto Scaling group served by the AL
16. P. Deploy the same solution to the us-west-1 Regio
17. Q. Create separate Amazon Route 53 records in each Region that point to the ALB in the Regio
18. R. Use Route 53 health checks to provide high availability across both Regions.

Correct Answer: B

- (Exam Topic 1)
An application is using an Amazon RDS for MySQL Multi-AZ DB instance in the us-east-1 Region. After a failover test, the application lost the connections to the database and could not re-establish the connections. After a restart of the application, the application re-established the connections.
A solutions architect must implement a solution so that the application can re-establish connections to the database without requiring a restart.
Which solution will meet these requirements?

1. A. Create an Amazon Aurora MySQL Serverless v1 DB instanc
2. B. Migrate the RDS DB instance to the Aurora Serverless v1 DB instanc
3. C. Update the connection settings in the application to point to the Aurora reader endpoint.
4. D. Create an RDS prox
5. E. Configure the existing RDS endpoint as a targe
6. F. Update the connection settings in the application to point to the RDS proxy endpoint.
7. G. Create a two-node Amazon Aurora MySQL DB cluste
8. H. Migrate the RDS DB instance to the Aurora DB cluste
9. I. Create an RDS prox
10. J. Configure the existing RDS endpoint as a targe
11. K. Update the connection settings in the application to point to the RDS proxy endpoint.
12. L. Create an Amazon S3 bucke
13. M. Export the database to Amazon S3 by using AWS Database Migration Service (AWS DMS). Configure Amazon Athena to use the S3 bucket as a data stor
14. N. Install the latest Open Database Connectivity (ODBC) driver for the applicatio
15. O. Update the connection settings in the application to point to the Athena endpoint

Correct Answer: B
Amazon RDS Proxy is a fully managed database proxy service for Amazon Relational Database Service (RDS) that makes applications more scalable, resilient, and secure. It allows applications to pool and share connections to an RDS database, which can help reduce database connection overhead, improve scalability, and provide automatic failover and high availability.

- (Exam Topic 1)
The company needs to determine which costs on the monthly AWS bill are attributable to each application or team. The company also must be able to create reports to compare costs from the last 12 months and to help forecast costs for the next 12 months. A solutions architect must recommend an AWS Billing and Cost Management solution that provides these cost reports.
Which combination of actions will meet these requirements? (Select THREE.)

1. A. Activate the user-defined cost allocation tags that represent the application and the team.
2. B. Activate the AWS generated cost allocation tags that represent the application and the team.
3. C. Create a cost category for each application in Billing and Cost Management.
4. D. Activate IAM access to Billing and Cost Management.
5. E. Create a cost budget.
6. F. Enable Cost Explorer.

Correct Answer: ACF
https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/manage-cost-categories.html https://aws.amazon.com/premiumsupport/knowledge-center/cost-explorer-analyze-spending-and-usage/ https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/manage-cost-categories.html
https://docs.aws.amazon.com/cost-management/latest/userguide/ce-enable.html
The best combination of actions to meet the company’s requirements is Options A, C, and F.
Option A involves activating the user-defined cost allocation tags that represent the application and the team. This will allow the company to assign costs to different applications or teams, and will allow them to be tracked in the monthly AWS bill.
Option C involves creating a cost category for each application in Billing and Cost Management. This will allow the company to easily identify and compare costs across different applications and teams.
Option F involves enabling Cost Explorer. This will allow the company to view the costs of their AWS resources over the last 12 months and to create forecasts for the next 12 months.
These recommendations are in line with the official Amazon Textbook and Resources for the AWS Certified Solutions Architect - Professional certification. In particular, the book states that “You can use cost allocation tags to group your costs by application, team, or other categories” (Source:
https://d1.awsstatic.com/training-and-certification/docs-sa-pro/AWS_Certified_Solutions_Architect_Professiona Additionally, the book states that “Cost Explorer enables you to view the costs of your AWS resources over the last 12 months and to create forecasts for the next 12 months” (Source:
https://d1.awsstatic.com/training-and-certification/docs-sa-pro/AWS_Certified_Solutions_Architect_Professiona