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NEW QUESTION 42
After conducting a disaster recovery exercise, an Enterprise Architect discovers that a large team of Database and Storage Administrators need more then seven hours of manual effort to make a flagship application's database functional in a different AWS Region. The Architect also discovers that the recovered database is often missing as much as two hours of data transactions.
Which solution provides improved RTO and RPO in a cross-region failover scenario?
Create an SNS topic subscribed to RDS availability events, and push these messages to an Amazon SQS queue located in the failover region. Configure an Auto Scaling group of worker nodes to poll the queue for new messages and make a call to Amazon RDS to restore a database from a snapshot after a checksum on the cross-region copied snapshot returns valid.D. Use Amazon SNS topics to receive published messages from Amazon RDS availability and backup events. Use AWS Lambda for three separate functions with calls to Amazon RDS to snapshot a database instance, create a cross-region snapshot copy, and restore an instance from a snapshot. Use a scheduled Amazon CloudWatch Events rule at a frequency matching the RPO to trigger the Lambda function to snapshot a database instance. Trigger the Lambda function to create a cross-region snapshot copy when the SNS topic for backup events receives a new message. Configure the Lambda function to restore an instance from a snapshot to trigger sending new messages published to the availability SNS topic.
Answer: D
NEW QUESTION 43
You are Devops Engineer for a large organization. The company wants to start using Cloudformation templates to start building their resources in AWS. You are getting requirements for the templates from various departments, such as the networking, security, application etc. What is the best way to architect these Cloudformation templates.
Answer: A
Explanation:
Explanation
The AWS documentation mentions the following
As your infrastructure grows, common patterns can emerge in which you declare the same components in each of your templates. You can separate out these common components and create dedicated templates for them. That way, you can mix and match different templates but use nested stacks to create a single, unified stack. Nested stacks are stacks that create other stacks. To create nested stacks, use the AWS:: Cloud Form ation::Stackresource in your template to reference other templates.
For more information on Cloudformation best practises, please visit the below url
http://docs.aws.amazon.com/AWSCIoudFormation/latest/UserGuide/best-practices.html
NEW QUESTION 44
A Development team is currently using AWS CodeDeploy to deploy an application revision to an Auto Scaling group. If the deployment process fails, it must be rolled back automatically and a notification must be sent.
What is the MOST effective configuration that can satisfy all of the requirements?
Send an Amazon SNS message when deployment fails. Use AWS CLI to redeploy a previously deployed revision.
Answer: C
Explanation:
Explanation
https://docs.aws.amazon.com/codedeploy/latest/userguide/monitoring-sns-event-notifications-create-trigger.html
NEW QUESTION 45
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