The Security team depends on AWS CloudTrail to detect sensitive security issues in the company's AWS account. The DevOps Engineer needs a solution to auto-remediate CloudTrail being turned off in an AWS account. What solution ensures the LEAST amount of downtime for the CloudTrail log deliveries?

• A.Create an Amazon CloudWatch Events rule for the CloudTrail StopLogging event. Create an AWS Lambda function that uses the AWS SDK to call StartLogging on the ARN of the resource in which StopLogging was called. Add the Lambda function ARN as a target to the CloudWatch Events rule.
• B.Deploy the AWS-managed CloudTrail-enabled AWS Config rule, set with a periodic interval of 1 hour. Create an Amazon CloudWatch Events rule for AWS Config rules compliance change. Create an AWS Lambda function that uses the AWS SDK to call StartLogging on the ARN of the resource in which StopLogging was called. Add the Lambda function ARN as a target to the CloudWatch Events rule.
• C.Create an Amazon CloudWatch Events rule for a scheduled event every 5 minutes. Create an AWS Lambda function that uses the AWS SDK to call StartLogging on an CloudTrail trail in the AWS account. Add the Lambda function ARN as a target to the CloudWatch Events rule.
• D.Launch a t2.nano instance with a script running every 5 minutes that uses the AWS SDK to query CloudTrail in the current account. If the CloudTrail trail is disabled, have the script re-enable the trail.

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After reviewing the last quarter's monthly bills, management has noticed an increase in the overall bill from Amazon. After researching this increase in cost, you discovered that one of your new services is doing a lot of GET Bucket API calls to Amazon S3 to build a metadata cache of all objects in the applications bucket. Your boss has asked you to come up with a new cost-effective way to help reduce the amount of these new GET Bucket API calls. What process should you use to help mitigate the cost?

• A.Update your Amazon S3 buckets' lifecycle policies to automatically push a list of objects to a new bucket, and use this list to view objects associated with the application's bucket.
• B.Create a new DynamoDB table. Use the new DynamoDB table to store all metadata about all objects uploaded to Amazon S3. Any time a new object is uploaded, update the application's internal Amazon S3 object metadata cache from DynamoDB.
  C Using Amazon SNS, create a notification on any new Amazon S3 objects that automatical ly updates a new DynamoDB table to store all metadata about the new object. Subscribe the application to the Amazon SNS topic to update its internal Amazon S3 object metadata cache from the DynamoDB table. ^/
• C.Upload all files to an ElastiCache file cache server. Update your application to now read all file metadata from the ElastiCache file cache server, and configure the ElastiCache policies to push all files to Amazon S3 for long-term storage.

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A Solution Architect is designing a disaster recovery solution for a 5 TB Amazon Redshift cluster. The
recovery site must be at least 500 miles (805 kilometers) from the live site.
How should the Architect meet these requirements?

• A.Take a snapshot of the cluster and copy it to another Availability Zone.
• B.Modify the Redshift cluster to span two regions.
• C.Enable cross-region snapshots to a different region.
• D.Use AWS CloudFormation to deploy the cluster in a second region.

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Your current log analysis application takes more than four hours to generate a report of the top 10 users of your web application.
You have been asked to implement a system that can report this information in real time, ensure that the report is always up to date, and handle increases in the number of requests to your web application. Choose the option that is cost-effective and can fulfill the requirements.

• A.Configure an Auto Scaling group to increase the size of your Amazon EMR duster.
• B.Create a multi-AZ Amazon RDS MySQL cluster, post the logging data to MySQL, and run a map reduce job to retrieve the required information on user counts.
• C.Publish your log data to an Amazon S3 bucket.
  Use AWS CloudFormation to create an Auto Scaling group to scale your post-processing application which is configured to pull down your log files stored an Amazon S3.
• D.Publish your data to CloudWatch Logs, and configure your application to autoscale to handle the load on demand.
• E.Post your log data to an Amazon Kinesis data stream, and subscribe your log-processing application so that is configured to process your logging data.

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You currently have an application deployed via Elastic Beanstalk. You are now deploying a new application and have ensured that Elastic beanstalk has detached the current instances and deployed and reattached new instances. But the new instances are still not receiving any sort of traffic. Why is this the case.

• A.The instances are of the wrong AMI, hence they are not being detected by the ELB.
• B.It takes time for the ELB to register the instances, hence there is a small timeframe before your instances can start receiving traffic C You need to create a new Elastic Beanstalk application, because you cannot detach and then reattach instances to an ELB within an Elastic Beanstalk application
• C.The instances needed to be reattached before the new application version was deployed

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