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A company's application on EC2 instances relies on a Single-AZ RDS for MySQL DB instance. The SysOps administrator needs to ensure failover to minimize downtime.
A SysOps administrator creates two VPCs, VPC1 and VPC2, in a company's AWS account The SysOps administrator deploys a Linux Amazon EC2 instance in VPC1 and deploys an Amazon RDS for MySQL DB instance in VPC2. The DB instance is deployed in a private subnet. An application that runs on the EC2 instance needs to connect to the database. What should the SysOps administrator do to give the EC2 instance the ability to connect to the database?
A company needs to monitor the disk utilization of Amazon Elastic Block Store (Amazon EBS) volumes The EBS volumes are attached to Amazon EC2 Linux Instances A SysOps administrator must set up an Amazon CloudWatch alarm that provides an alert when disk utilization increases to more than 80%. Which combination of steps must the SysOps administrator lake lo meet these requirements? (Select THREE.)
A company uses AWS CloudFormation to manage a stack of Amazon EC2 instances on AWS. A SysOps administrator needs to keep the instances and all of the instances' data, even if someone deletes the stack. Which solution will meet these requirements?
A SysOps administrator is optimizing the cost of a workload. The workload is running in multiple AWS Regions and is using AWS Lambda with Amazon EC2 On-Demand Instances for the compute. The overall usage is predictable. The amount of compute that is consumed in each Region varies, depending on the users' locations. Which approach should the SysOps administrator use to optimize this workload?
The SysOps administrator must dynamically reference the latest AMI ID from Systems Manager Parameter Store in CloudFormation templates for new AMI versions.
A company has an application that collects notifications from thousands of alarm systems. The notifications include alarm notifications and information notifications. The information notifications include the system arming processes, disarming processes, and sensor status. All notifications are kept as messages in an Amazon Simple Queue Service (Amazon SQS) queue. Amazon EC2 instances that are in an Auto Scaling group process the messages. A SysOps administrator needs to implement a solution that prioritizes alarm notifications over information notifications. Which solution will meet these requirements?
A team of developers is using several Amazon S3 buckets as centralized repositories. Users across the world upload large sets of files to these repositories. The development team's applications later process these files. A SysOps administrator sets up a new S3 bucket. DOC-EXAMPLE-BUCKET, to support a new workload. The new S3 bucket also receives regular uploads of large sets of files from users worldwide. When the new S3 bucket is put into production, the upload performance from certain geographic areas is lower than the upload performance that the existing S3 buckets provide. What should the SysOps administrator do to remediate this issue?
The SysOps administrator must modify the AWS Config rule that deletes noncompliant SSH inbound rules to update the rule to allow SSH from specific trusted IP addresses instead.
A company is running a serverless application on AWS Lambda. The application stores data in an Amazon RDS for MySQL DB instance. Usage has steadily increased, and recently there have been numerous "too many connections" errors when the Lambda function attempts to connect to the database. The company already has configured the database to use the maximum max_connections value that is possible. What should a SysOps administrator do to resolve these errors?

Question 347 - SOA-C02 discussion

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A SysOps administrator needs to design a disaster recovery (DR) plan for an application on AWS. The application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The instances are in an Auto Scaling group. The application uses an Amazon Aurora PostgreSQL database. The recovery time objective (RTO) and recovery point objective (RPO) are 15 minutes each.

Which combination of steps should the SysOps administrator take to meet these requirements MOST cost-effectively? (Select TWO.)

A.
Configure Aurora backups to be exported to the DR Region.
Answers
A.
Configure Aurora backups to be exported to the DR Region.
B.
Configure the Aurora cluster to replicate data to the DR Region by using the Aurora global database option.
Answers
B.
Configure the Aurora cluster to replicate data to the DR Region by using the Aurora global database option.
C.
Configure the DR Region with an ALB and an Auto Scaling group. Use the same configuration as in the primary Region.
Answers
C.
Configure the DR Region with an ALB and an Auto Scaling group. Use the same configuration as in the primary Region.
D.
Configure the DR Region with an ALB and an Auto Scaling group. Set the Auto Scaling group's minimum capacity, maximum capacity, and desired capacity to 1.
Answers
D.
Configure the DR Region with an ALB and an Auto Scaling group. Set the Auto Scaling group's minimum capacity, maximum capacity, and desired capacity to 1.
E.
Manually launch a new ALB and a new Auto Scaling group by using AWS CloudFormation during a failover activity.
Answers
E.
Manually launch a new ALB and a new Auto Scaling group by using AWS CloudFormation during a failover activity.
Suggested answer: B, C

Explanation:

For a disaster recovery (DR) plan with a 15-minute RTO and RPO, the most cost-effective steps include:

B: Configuring the Aurora cluster to replicate data to the DR region using the Aurora global database option. This allows continuous replication with typically low replication lag, meeting the 15-minute RPO requirement efficiently.

C: Pre-configuring the DR region with an ALB and an Auto Scaling group using the same configuration as the primary region. This ensures readiness and quick failover, aligning with the 15-minute RTO target.

These steps provide a robust disaster recovery setup that minimizes downtime and data loss while optimizing costs by using built-in AWS functionalities and avoiding over-provisioning. More information can be found in the AWS documentation on Aurora Global Databases Aurora Global Databases and disaster recovery planning AWS Disaster Recovery.

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asked 16/09/2024
Emily Luijten
46 questions
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