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

- (Exam Topic 1)
A company has a complex web application that leverages Amazon CloudFront for global scalability and performance. Over time, users report that the web application is slowing down.
The company's operations team reports that the CloudFront cache hit ratio has been dropping steadily. The cache metrics report indicates that query strings on some URLs are inconsistently ordered and are specified sometimes in mixed-case letters and sometimes in lowercase letters.
Which set of actions should the solutions architect take to increase the cache hit ratio as quickly as possible?

1. A. Deploy a Lambda@Edge function to sort parameters by name and force them to be lowercas
2. B. Select the CloudFront viewer request trigger to invoke the function.
3. C. Update the CloudFront distribution to disable caching based on query string parameters.
4. D. Deploy a reverse proxy after the load balancer to post-process the emitted URLs in the application to force the URL strings to be lowercase.
5. E. Update the CloudFront distribution to specify casing-insensitive query string processing.

Correct Answer: A
https://docs.amazonaws.cn/en_us/AmazonCloudFront/latest/DeveloperGuide/lambda-examples.html#lambda-ex Before CloudFront serves content from the cache it will trigger any Lambda function associated with the
Viewer Request, in which we can normalize parameters.
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/lambda-examples.html#lambda-examp

- (Exam Topic 1)
A solutions architect is designing the data storage and retrieval architecture for a new application that a company will be launching soon. The application is designed to ingest millions of small records per minute from devices all around the world. Each record is less than 4 KB in size and needs to be stored in a durable location where it can be retrieved with low latency. The data is ephemeral and the company is required to store the data for 120 days only, after which the data can be deleted.
The solutions architect calculates that, during the course of a year, the storage requirements would be about 10-15 TB.
Which storage strategy is the MOST cost-effective and meets the design requirements?

1. A. Design the application to store each incoming record as a single .csv file in an Amazon S3 bucket to allow for indexed retrieva
2. B. Configure a lifecycle policy to delete data older than 120 days.
3. C. Design the application to store each incoming record in an Amazon DynamoDB table properly configured for the scal
4. D. Configure the DynamoOB Time to Live (TTL) feature to delete records older than 120 days.
5. E. Design the application to store each incoming record in a single table in an Amazon RDS MySQL databas
6. F. Run a nightly cron job that executes a query to delete any records older than 120 days.
7. G. Design the application to batch incoming records before writing them to an Amazon S3 bucke
8. H. Update the metadata for the object to contain the list of records in the batch and use the Amazon S3 metadata search feature to retrieve the dat
9. I. Configure a lifecycle policy to delete the data after 120 days.

Correct Answer: B
DynamoDB with TTL, cheaper for sustained throughput of small items + suited for fast retrievals. S3 cheaper for storage only, much higher costs with writes. RDS not designed for this use case.

- (Exam Topic 1)
A company wants to change its internal cloud billing strategy for each of its business units. Currently, the cloud governance team shares reports for overall cloud spending with the head of each business unit. The company uses AWS Organizations lo manage the separate AWS accounts for each business unit. The existing tagging standard in Organizations includes the application, environment, and owner. The cloud governance team wants a centralized solution so each business unit receives monthly reports on its cloud spending. The solution should also send notifications for any cloud spending that exceeds a set threshold.
Which solution is the MOST cost-effective way to meet these requirements?

1. A. Configure AWS Budgets in each account and configure budget alerts that are grouped by application, environment, and owne
2. B. Add each business unit to an Amazon SNS topic for each aler
3. C. Use Cost Explorer in each account to create monthly reports for each business unit.
4. D. Configure AWS Budgets in the organization's master account and configure budget alerts that are grouped by application, environment, and owne
5. E. Add each business unit to an Amazon SNS topic for each aler
6. F. Use Cost Explorer in the organization's master account to create monthly reports for each business unit.
7. G. Configure AWS Budgets in each account and configure budget alerts lhat are grouped by application, environment, and owne
8. H. Add each business unit to an Amazon SNS topic for each aler
9. I. Use the AWS Billing and Cost Management dashboard in each account to create monthly reports for each business unit.
10. J. Enable AWS Cost and Usage Reports in the organization's master account and configure reports grouped by application, environment, and owne
11. K. Create an AWS Lambda function that processes AWS Cost and Usage Reports, sends budget alerts, and sends monthly reports to each business unit's email list.

Correct Answer: B
Configure AWS Budgets in the organization€™s master account and configure budget alerts that are grouped by application, environment, and owner. Add each business unit to an Amazon SNS topic for each alert. Use Cost Explorer in the organization€™s master account to create monthly reports for each business unit.
https://aws.amazon.com/about-aws/whats-new/2019/07/introducing-aws-budgets-reports/#:~:text=AWS Bud

- (Exam Topic 2)
A company uses multiple AWS accounts in a single AWS Region A solutions architect is designing a solution to consolidate logs generated by Elastic Load Balancers (ELBs) in the AppDev, AppTest and AppProd accounts. The logs should be stored in an existing Amazon S3 bucket named s3-eib-logs in the central AWS account. The central account is used for log consolidation only and does not have ELBs deployed ELB logs must be encrypted at rest
Which combination of steps should the solutions architect take to build the solution'' (Select TWO )

1. A. Update the S3 bucket policy for the s3-elb-logs bucket to allow the s3 PutBucketLogging action for the central AWS account ID
2. B. Update the S3 bucket policy for the s3-eib-logs bucket to allow the s3 PutObject and s3 DeleteObject actions for the AppDev AppTest and AppProd account IDs
3. C. Update the S3 bucket policy for the s3-elb-logs bucket to allow the s3 PutObject action for the AppDev AppTest and AppProd account IDs
4. D. Enable access logging for the ELB
5. E. Set the S3 location to the s3-elb-logs bucket
6. F. Enable Amazon S3 default encryption using server-side encryption with S3 managed encryption keys (SSE-S3) for the s3-elb-logs S3 bucket

Correct Answer: AE

- (Exam Topic 2)
A company used Amazon EC2 instances to deploy a web fleet to host a blog site The EC2 instances are behind an Application Load Balancer (ALB) and are configured in an Auto ScaSng group The web application stores all blog content on an Amazon EFS volume.
The company recently added a feature 'or Moggers to add video to their posts, attracting 10 times the previous user traffic At peak times of day. users report buffering and timeout issues while attempting to reach the site or watch videos
Which is the MOST cost-efficient and scalable deployment that win resolve the issues for users?

1. A. Reconfigure Amazon EFS to enable maximum I/O.
2. B. Update the Nog site to use instance store volumes tor storag
3. C. Copy the site contents to the volumes at launch and to Amazon S3 al shutdown.
4. D. Configure an Amazon CloudFront distributio
5. E. Point the distribution to an S3 bucket, and migrate the videos from EFS to Amazon S3.
6. F. Set up an Amazon CloudFront distribution for all site contents, and point the distribution at the ALB.

Correct Answer: C
https://aws.amazon.com/premiumsupport/knowledge-center/cloudfront-https-connection-fails/ Using an Amazon S3 bucket
Using a MediaStore container or a MediaPackage channel Using an Application Load Balancer
Using a Lambda function URL
Using Amazon EC2 (or another custom origin)
Using CloudFront origin groups https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/restrict-access-to-load-balancer.html