- (Exam Topic 1)
A company is running a website on Amazon EC2 instances behind an Application Load Balancer (ALB). The company configured an Amazon CloudFront distribution and set the ALB as the origin. The company created an Amazon Route 53 CNAME record to send all traffic through the CloudFront distribution. As an unintended side effect, mobile users are now being served the desktop version of the website.
Which action should a SysOps administrator take to resolve this issue?

1. A. Configure the CloudFront distribution behavior to forward the User-Agent header.
2. B. Configure the CloudFront distribution origin setting
3. C. Add a User-Agent header to the list of origin custom headers.
4. D. Enable IPv6 on the AL
5. E. Update the CloudFront distribution origin settings to use the dualstack endpoint.
6. F. Enable IPv6 on the CloudFront distributio
7. G. Update the Route 53 record to use the dualstack endpoint.

Correct Answer: A
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/header-caching.html#header-caching-

- (Exam Topic 1)
A company with multiple AWS accounts needs to obtain recommendations for AWS Lambda functions and identify optimal resource configurations for each Lambda function. How should a SysOps administrator provide these recommendations?

1. A. Create an AWS Serverless Application Repository and export the Lambda function recommendations.
2. B. Enable AWS Compute Optimizer and export the Lambda function recommendations
3. C. Enable all features of AWS Organization and export the recommendations from AWS CloudTrailInsights.
4. D. Run AWS Trusted Advisor and export the Lambda function recommendations

Correct Answer: B

- (Exam Topic 1)
An application runs on multiple Amazon EC2 instances in an Auto Scaling group The Auto Scaling group is
configured to use the latest version of a launch template A SysOps administrator must devise a solution that centrally manages the application logs and retains the logs for no more than 90 days
Which solution will meet these requirements?

1. A. Launch an Amazon Machine Image (AMI) that is preconfigured with the Amazon CloudWatch Logs agent to send logs to an Amazon S3 bucket Apply a 90-day S3 Lifecycle policy on the S3 bucket to expire the application logs
2. B. Launch an Amazon Machine Image (AMI) that is preconfigured with the Amazon CloudWatch Logs agent to send logs to a log group Create an Amazon EventBridge (Amazon CloudWatch Events) scheduled rule to perform an instance refresh every 90 days
3. C. Update the launch template user data to install and configure the Amazon CloudWatch Logs agent to send logs to a log group Configure the retention period on the log group to be 90 days
4. D. Update the launch template user data to install and configure the Amazon CloudWatch Logs agent to send logs to a log group Set the log rotation configuration of the EC2 instances to 90 days

Correct Answer: C

- (Exam Topic 1)
A company wants to track its AWS costs in all member accounts that are part of an organization in AWS Organizations. Managers of the member accounts want to receive a notification when the estimated costs exceed a predetermined amount each month. The managers are unable to configure a billing alarm. The IAM permissions for all users are correct. What could be the cause of this issue?

1. A. The management/payer account does not have billing alerts turned on.
2. B. The company has not configured AWS Resource Access Manager (AWS RAM) to share billing information between the member accounts and the management/payer account.
3. C. Amazon GuardDuty is turned on for all the accounts.
4. D. The company has not configured an AWS Config rule to monitor billing.

Correct Answer: B

- (Exam Topic 1)
A company wants to build a solution for its business-critical Amazon RDS for MySQL database. The database requires high availability across different geographic locations. A SysOps administrator must build a solution to handle a disaster recovery (DR) scenario with the lowest recovery time objective (RTO) and recovery point objective (RPO).
Which solution meets these requirements?

1. A. Create automated snapshots of the database on a schedul
2. B. Copy the snapshots to the DR Region.
3. C. Create a cross-Region read replica for the database.
4. D. Create a Multi-AZ read replica for the database.
5. E. Schedule AWS Lambda functions to create snapshots of the source database and to copy the snapshots to a DR Region.

Correct Answer: B