A company has applications running on Amazon EC2 instances in a private subnet with no internet connectivity. The company deployed a new application that uses Amazon DynamoDB, but the application cannot connect to the DynamoDB tables. A developer already checked that all permissions are set correctly.
What should a database specialist do to resolve this issue while minimizing access to external resources?

• A.Assign a new security group to the EC2 instances with an outbound rule to ports 80 and 443.
• B.Create a VPC endpoint for DynamoDB and add a route to the endpoint in the subnet's route table.
• C.Add a route to an internet gateway in the subnet's route table.
• D.Add a route to a NAT gateway in the subnet's route table.

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A company has an Amazon RDS Multi-AZ DB instances that is 200 GB in size with an RPO of 6 hours. To meet the company's disaster recovery policies, the database backup needs to be copied into another Region.
The company requires the solution to be cost-effective and operationally efficient.
What should a Database Specialist do to copy the database backup into a different Region?

• A.Create an AWS Lambda function to take an Amazon RDS snapshot every 6 hours and use a secondLambda function to copy the snapshot into another Region
• B.Use Amazon RDS automated snapshots and use AWS Lambda to copy the snapshot into another Region
• C.Use Amazon RDS automated snapshots every 6 hours and use Amazon S3 cross-Region replication tocopy the snapshot into another Region
• D.Create a cross-Region read replica for Amazon RDS in another Region and take an automated snapshot ofthe read replica

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An online shopping company has a large inflow of shopping requests daily. As a result, there is a consistent load on the company's Amazon RDS database. A database specialist needs to ensure the database is up and running at all times. The database specialist wants an automatic notification system for issues that may cause database downtime or for configuration changes made to the database.
What should the database specialist do to achieve this? (Choose two.)

• A.Configure Amazon CloudWatch alarms on various metrics, such as FreeStorageSpace for the RDS instance.
• B.Subscribe to an RDS event subscription and configure it to use an Amazon SNS topic to send notifications.
• C.Enable email notifications for AWS Trusted Advisor.
• D.Use Amazon SES to send notifications based on configured Amazon CloudWatch Events events.
• E.Create an Amazon CloudWatch Events event to send a notification using Amazon SNS on every API call logged in AWS CloudTrail.

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An Amazon RDS EBS-optimized instance with Provisioned IOPS (PIOPS) storage is using less than half of its allocated IOPS over the course of several hours under constant load. The RDS instance exhibits multi-second read and write latency, and uses all of its maximum bandwidth for read throughput, yet the instance uses less than half of its CPU and RAM resources.
What should a Database Specialist do in this situation to increase performance and return latency to sub-second levels?

• A.Disable EBS optimization on the DB instance
• B.Change the DB instance to an instance class with a higher maximum bandwidth
• C.Change the underlying EBS storage type to General Purpose SSD (gp2)
• D.Increase the size of the DB instance storage

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A database specialist at a large multi-national financial company is in charge of designing the disaster recovery strategy for a highly available application that is in development. The application uses an Amazon DynamoDB table as its data store. The application requires a recovery time objective (RTO) of 1 minute and a recovery point objective (RPO) of 2 minutes.
Which operationally efficient disaster recovery strategy should the database specialist recommend for the DynamoDB table?

• A.Create an AWS Backup plan and assign the DynamoDB table as a resource.
• B.Use a DynamoDB global table replica in another Region. Enable point-in-time recovery for both tables.
• C.Create a DynamoDB stream that is processed by an AWS Lambda function that copies the data to a DynamoDB table in another Region.
• D.Use a DynamoDB Accelerator table in another Region. Enable point-in-time recovery for the table.

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