A database specialist was alerted that a production Amazon RDS MariaDB instance with 100 GB of storage was out of space. In response, the database specialist modified the DB instance and added 50 GB of storage capacity. Three hours later, a new alert is generated due to a lack of free space on the same DB instance. The database specialist decides to modify the instance immediately to increase its storage capacity by 20 GB.
What will happen when the modification is submitted?

• A.The request will fail because this storage capacity is too large.
• B.The request will succeed only if the primary instance is in active status.
• C.The request will succeed only if CPU utilization is less than 10%.
• D.The request will fail as the most recent modification was too soon.

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A company uses Amazon DynamoDB as the data store for its ecommerce website. The website receives little to no traffic at night, and the majority of the traffic occurs during the day. The traffic growth during peak hours is gradual and predictable on a daily basis, but it can be orders of magnitude higher than during off-peak hours.
The company initially provisioned capacity based on its average volume during the day without accounting for the variability in traffic patterns. However, the website is experiencing a significant amount of throttling during peak hours. The company wants to reduce the amount of throttling while minimizing costs.
What should a database specialist do to meet these requirements?

• A.Use reserved capacity. Set it to the capacity levels required for peak daytime throughput.
• B.Use provisioned capacity. Set it to the capacity levels required for peak daytime throughput.
• C.Use provisioned capacity. Create an AWS Application Auto Scaling policy to update capacity based on consumption.
• D.Use on-demand capacity.

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Developers have requested a new Amazon Redshift cluster so they can load new third-party marketing dat a. The new cluster is ready and the user credentials are given to the developers. The developers indicate that their copy jobs fail with the following error message:
"Amazon Invalid operation: S3ServiceException:Access Denied,Status 403,Error AccessDenied." The developers need to load this data soon, so a database specialist must act quickly to solve this issue.
What is the MOST secure solution?

• A.Create a new IAM role with the same user name as the Amazon Redshift developer user ID. Provide the IAM role with read-only access to Amazon S3 with the assume role action.
• B.Create a new IAM role with read-only access to the Amazon S3 bucket and include the assume role action. Modify the Amazon Redshift cluster to add the IAM role.
• C.Create a new IAM role with read-only access to the Amazon S3 bucket with the assume role action. Add this role to the developer IAM user ID used for the copy job that ended with an error message.
• D.Create a new IAM user with access keys and a new role with read-only access to the Amazon S3 bucket. Add this role to the Amazon Redshift cluster. Change the copy job to use the access keys created.

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A company requires near-real-time notifications when changes are made to Amazon RDS DB security groups.
Which solution will meet this requirement with the LEAST operational overhead?

• A.Configure an RDS event notification subscription for DB security group events.
• B.Create an AWS Lambda function that monitors DB security group changes. Create an Amazon Simple Notification Service (Amazon SNS) topic for notification.
• C.Turn on AWS CloudTrail. Configure notifications for the detection of changes to DB security groups.
• D.Configure an Amazon CloudWatch alarm for RDS metrics about changes to DB security groups.

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A database specialist deployed an Amazon RDS DB instance in Dev-VPC1 used by their development team.
Dev-VPC1 has a peering connection with Dev-VPC2 that belongs to a different development team in the same department. The networking team confirmed that the routing between VPCs is correct; however, the database engineers in Dev-VPC2 are getting a timeout connections error when trying to connect to the database in Dev- VPC1.
What is likely causing the timeouts?

• A.The database is deployed in a VPC that is in a different Region.
• B.The database is deployed in a VPC that is in a different Availability Zone.
• C.The database is deployed with misconfigured security groups.
• D.The database is deployed with the wrong client connect timeout configuration.

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