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NEW QUESTION 27
A company's Security department established new requirements that state internal users must connect to an existing Amazon RDS for SQL Server DB instance using their corporate Active Directory (AD) credentials. A Database Specialist must make the modifications needed to fulfill this requirement.
Which combination of actions should the Database Specialist take? (Choose three.)
- A. Stop the RDS SQL Server DB instance, modify it to use the directory for Windows authentication, and startit again. Create appropriate new logins.
- B. Use the AWS Management Console to create an AD Connector. Create a trust relationship with thecorporate AD.
- C. Configure the AWS Managed Microsoft AD domain controller Security Group.
- D. Use the AWS Management Console to create an AWS Managed Microsoft AD. Create a trust relationshipwith the corporate AD.
- E. Disable Transparent Data Encryption (TDE) on the RDS SQL Server DB instance.
- F. Modify the RDS SQL Server DB instance to use the directory for Windows authentication.
Createappropriate new logins.
Answer: A,C,D
NEW QUESTION 28
An IT consulting company wants to reduce costs when operating its development environment databases. The company's workflow creates multiple Amazon Aurora MySQL DB clusters for each development group. The Aurora DB clusters are only used for 8 hours a day. The DB clusters can then be deleted at the end of the development cycle, which lasts 2 weeks.
Which of the following provides the MOST cost-effective solution?
- A. Use Aurora Replicas. From the master automatic pause compute capacity option, create replicas for each development group, and promote each replica to master. Delete the replicas at the end of the development cycle.
- B. Use the Aurora DB cloning feature. Deploy a single development and test Aurora DB instance, and create clone instances for the development groups. Delete the clones at the end of the development cycle.
- C. Use Aurora Serverless. Restore current Aurora snapshot and deploy to a serverless cluster for each development group. Enable the option to pause the compute capacity on the cluster and set an appropriate timeout.
- D. Use AWS CloudFormation templates. Deploy a stack with the DB cluster for each development group.
Delete the stack at the end of the development cycle.
Answer: B
Explanation:
Explanation
Aurora Serverless is not compatible to all Aurora provisioned engine version. However, you can do clone with most engine version. Meanwhile, I also consider the performance while restoring snapshot to Aurora Serverless.
https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-serverless.how-it-works.html#aurora
https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-serverless.html#aurora-serverless.use
NEW QUESTION 29
A Database Specialist is planning to create a read replica of an existing Amazon RDS for MySQL Multi-AZ DB instance. When using the AWS Management Console to conduct this task, the Database Specialist discovers that the source RDS DB instance does not appear in the read replica source selection box, so the read replica cannot be created.
What is the most likely reason for this?
- A. Enhanced Monitoring is not enabled on the source DB instance.
- B. The minor MySQL version in the source DB instance does not support read replicas.
- C. The source DB instance has to be converted to Single-AZ first to create a read replica from it.
- D. Automated backups are not enabled on the source DB instance.
Answer: D
Explanation:
Explanation
>Your source DB instance must have backup retention enabled.
https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_CreateDBInstanceReadReplica.html
NEW QUESTION 30
A company with branch offices in Portland, New York, and Singapore has a three-tier web application that leverages a shared database. The database runs on Amazon RDS for MySQL and is hosted in the us-west-2 Region. The application has a distributed front end deployed in the us-west-2, ap-southheast-1, and us-east-2 Regions.
This front end is used as a dashboard for Sales Managers in each branch office to see current sales statistics.
There are complaints that the dashboard performs more slowly in the Singapore location than it does in Portland or New York. A solution is needed to provide consistent performance for all users in each location.
Which set of actions will meet these requirements?
- A. Create an RDS read replica in the ap-southeast-1 Region from the primary RDS DB instance in the us- west-2 Region. Reconfigure the ap-southeast-1 front-end dashboard to access this instance.
- B. Take a snapshot of the instance in the us-west-2 Region. Create a new instance from the snapshot in the ap-southeast-1 Region. Reconfigure the ap-southeast-1 front-end dashboard to access this instance.
- C. Create an RDS read replica in the us-west-2 Region where the primary instance resides. Create a read replica in the ap-southeast-1 Region from the read replica located on the us-west-2 Region. Reconfigure the ap-southeast-1 front-end dashboard to access this instance.
- D. Create a new RDS instance in the ap-southeast-1 Region. Use AWS DMS and change data capture (CDC) to update the new instance in the ap-southeast-1 Region. Reconfigure the ap-southeast-1 front-end dashboard to access this instance.
Answer: A
Explanation:
Explanation
https://aws.amazon.com/rds/features/read-replicas/
"Amazon RDS Read Replicas provide enhanced performance and durability for RDS database (DB) instances.
They make it easy to elastically scale out beyond the capacity constraints of a single DB instance for read-heavy database workloads. You can create one or more replicas of a given source DB Instance and serve high-volume application read traffic from multiple copies of your data, thereby increasing aggregate read throughput. "
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_ReadRepl.XRgn.html
NEW QUESTION 31
A large company is using an Amazon RDS for Oracle Multi-AZ DB instance with a Java application. As a part of its disaster recovery annual testing, the company would like to simulate an Availability Zone failure and record how the application reacts during the DB instance failover activity. The company does not want to make any code changes for this activity.
What should the company do to achieve this in the shortest amount of time?
- A. Use the RDS console to reboot the DB instance by choosing the option to reboot with failover
- B. Use a blue-green deployment with a complete application-level failover test
- C. Use RDS fault injection queries to simulate the primary node failure
- D. Add a rule to the NACL to deny all traffic on the subnets associated with a single Availability Zone
Answer: A
Explanation:
Explanation
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_RebootInstance.html
https://exain.wordpress.com/2017/07/12/amazon-rds-multi-az-setup-failover-simulation/
"Rebooting with failover is beneficial when you want to simulate a failure of a DB instance for testing, or restore operations to the original AZ after a failover occurs."
NEW QUESTION 32
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