Question 121
A company is developing a new web application. An AWS CloudFormation template was created as a part of the build process.
Recently, a change was made to an AWS::RDS::DBInstance resource in the template. The CharacterSetName property was changed to allow the application to process international text. A change set was generated using the new template, which indicated that the existing DB instance should be replaced during an upgrade.
What should a database specialist do to prevent data loss during the stack upgrade?
A. Create a snapshot of the DB instance. Modify the template to add the DBSnapshotIdentifier property with the ID of the DB snapshot. Update the stack.
B. Modify the stack policy using the aws cloudformation update-stack command and the set-stack-policy command, then make the DB resource protected.
C. Create a snapshot of the DB instance. Update the stack. Restore the database to a new instance.
D. Deactivate any applications that are using the DB instance. Create a snapshot of the DB instance. Modify the template to add the DBSnapshotIdentifier property with the ID of the DB snapshot. Update the stack and reactivate the applications.
Question 122
A company recently acquired a new business. A database specialist must migrate an unencrypted 12 TB Amazon RDS for MySQL DB instance to a new AWS account. The database specialist needs to minimize the amount of time required to migrate the database.
Which solution meets these requirements?
A. Create a snapshot of the source DB instance in the source account. Share the snapshot with the destination account. In the target account, create a DB instance from the snapshot.
B. Use AWS Resource Access Manager to share the source DB instance with the destination account. Create a DB instance in the destination account using the shared resource.
C. Create a read replica of the DB instance. Give the destination account access to the read replica. In the destination account, create a snapshot of the shared read replica and provision a new RDS for MySQL DB instance.
D. Use mysqldump to back up the source database. Create an RDS for MySQL DB instance in the destination account. Use the mysql command to restore the backup in the destination database.
Question 123
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. Add a route to an internet gateway in the subnet's route table.
B. Add a route to a NAT gateway in the subnet's route table.
C. Assign a new security group to the EC2 instances with an outbound rule to ports 80 and 443.
D. Create a VPC endpoint for DynamoDB and add a route to the endpoint in the subnet's route table.
Question 124
The Amazon CloudWatch metric for FreeLocalStorage on an Amazon Aurora MySQL DB instance shows that the amount of local storage is below 10 MB. A database engineer must increase the local storage available in the Aurora DB instance.
How should the database engineer meet this requirement?
A. Modify the DB instance to use an instance class that provides more local SSD storage.
B. Modify the Aurora DB cluster to enable automatic volume resizing.
C. Increase the local storage by upgrading the database engine version.
D. Modify the DB instance and configure the required storage volume in the configuration section.
Question 125
A company has an ecommerce web application with an Amazon RDS for MySQL DB instance. The marketing team has noticed some unexpected updates to the product and pricing information on the website, which is impacting sales targets. The marketing team wants a database specialist to audit future database activity to help identify how and when the changes are being made.
What should the database specialist do to meet these requirements? (Choose two.)
A. Create an RDS event subscription to the audit event type.
B. Enable auditing of CONNECT and QUERY_DML events.
C. SSH to the DB instance and review the database logs.
D. Publish the database logs to Amazon CloudWatch Logs.
E. Enable Enhanced Monitoring on the DB instance.
