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Amazon AWS Certified Database - Specialty (DBS-C01) Exam Sample Questions (Q250-Q255):

NEW QUESTION # 250
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. Use a DynamoDB global table replica in another Region. Enable point-in-time recovery for both tables.
• B. Use a DynamoDB Accelerator table in another Region. Enable point-in-time recovery for the table.
• C. Create an AWS Backup plan and assign the DynamoDB table as a resource.
• D. Create a DynamoDB stream that is processed by an AWS Lambda function that copies the data to a DynamoDB table in another Region.

Answer: B
NEW QUESTION # 251
AWS CloudFormation stack including an Amazon RDS database instance was mistakenly removed, resulting in the loss of recent dat a. A Database Specialist must apply RDS parameters to the CloudFormation template in order to minimize the possibility of future inadvertent instance data loss.
Which settings will satisfy this criterion? (Select three.)

• A. Set MultiAZ to True
• B. Set TerminationProtection to True
• C. Set DeletionProtection to True
• D. Set DeletionPolicy to Delete
• E. Set DeletionPolicy to Retain
• F. Set DeleteAutomatedBackups to False

Answer: C,E,F Explanation:
A - https://aws.amazon.com/about-aws/whats-new/2018/09/amazon-rds-now-provides-database-deletion-protection/ D - https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_WorkingWithAutomatedBackups.html F - https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-deletionpolicy.html
NEW QUESTION # 252
A large financial services company requires that all data be encrypted in transit. A Developer is attempting to connect to an Amazon RDS DB instance using the company VPC for the first time with credentials provided by a Database Specialist. Other members of the Development team can connect, but this user is consistently receiving an error indicating a communications link failure. The Developer asked the Database Specialist to reset the password a number of times, but the error persists.
Which step should be taken to troubleshoot this issue?

• A. Ensure that the database option group for the RDS DB instance allows ingress from the Developer machine's IP address
• B. Ensure that the connection is using SSL and is addressing the port where the RDS DB instance is listening for encrypted connections
• C. Ensure that the RDS DB instance's subnet group includes a public subnet to allow the Developer to connect
• D. Ensure that the RDS DB instance has not reached its maximum connections limit

Answer: B Explanation:
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/SQLServer.Concepts.General.SSL.Using.html
NEW QUESTION # 253
The Security team for a finance company was notified of an internal security breach that happened 3 weeks ago. A Database Specialist must start producing audit logs out of the production Amazon Aurora PostgreSQL cluster for the Security team to use for monitoring and alerting. The Security team is required to perform real- time alerting and monitoring outside the Aurora DB cluster and wants to have the cluster push encrypted files to the chosen solution.
Which approach will meet these requirements?

• A. Use AWS CloudTrail to audit the DB cluster and the Security team will get data from Amazon S3.
• B. Use pg_audit to generate audit logs and send the logs to the Security team.
• C. Turn on verbose logging and set up a schedule for the logs to be dumped out for the Security team.
• D. Set up database activity streams and connect the data stream from Amazon Kinesis to consumer applications.

Answer: D Explanation:
https://aws.amazon.com/about-aws/whats-new/2019/05/amazon-aurora-with-postgresql-compatibility-supports-database-activity-streams/
"Database Activity Streams for Amazon Aurora with PostgreSQL compatibility provides a near real-time data stream of the database activity in your relational database to help you monitor activity. When integrated with third party database activity monitoring tools, Database Activity Streams can monitor and audit database activity to provide safeguards for your database and help meet compliance and regulatory requirements."
https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Overview.LoggingAndMonitoring.html
NEW QUESTION # 254
A Database Specialist modified an existing parameter group currently associated with a production Amazon RDS for SQL Server Multi-AZ DB instance. The change is associated with a static parameter type, which controls the number of user connections allowed on the most critical RDS SQL Server DB instance for the company. This change has been approved for a specific maintenance window to help minimize the impact on users.
How should the Database Specialist apply the parameter group change for the DB instance?

• A. Reboot the secondary Multi-AZ DB instance
• B. Allow the preconfigured RDS maintenance window for the given DB instance to control when the change is applied
• C. Apply the change manually by rebooting the DB instance during the approved maintenance window
• D. Select the option to apply the change immediately

Answer: C Explanation:
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USERWorkingWithParamGroups.html#USERWorkingWithParamGroups.Modifying
NEW QUESTION # 255
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