A financial services company is developing a shared data service that supports different applications from throughout the company. A Database Specialist designed a solution to leverage Amazon ElastiCache for Redis with cluster mode enabled to enhance performance and scalability. The cluster is configured to listen on port
6379.
Which combination of steps should the Database Specialist take to secure the cache data and protect it from unauthorized access? (Choose three.)

• A.Ensure the security group for the ElastiCache clients authorize inbound TCP port 6379 and port 22 traffic from the trusted ElastiCache cluster's security group.
• B.Ensure the cluster is created with the auth-token parameter and that the parameter is used in all subsequent commands.
• C.Create an IAM policy to allow the application service roles to access all ElastiCache API actions.
• D.Ensure that Amazon CloudWatch metrics are configured in the ElastiCache cluster.
• E.Enable in-transit and at-rest encryption on the ElastiCache cluster.
• F.Ensure the security group for the ElastiCache cluster allows all inbound traffic from itself and inbound traffic on TCP port 6379 from trusted clients only.

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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.Disable Transparent Data Encryption (TDE) on the RDS SQL Server DB instance.
• C.Configure the AWS Managed Microsoft AD domain controller Security Group.
• D.Use the AWS Management Console to create an AD Connector. Create a trust relationship with thecorporate AD.
• E.Modify the RDS SQL Server DB instance to use the directory for Windows authentication.
  Createappropriate new logins.
• F.Use the AWS Management Console to create an AWS Managed Microsoft AD. Create a trust relationshipwith the corporate AD.

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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 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.
• B.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.
• C.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.
• D.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.

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A financial company has allocated an Amazon RDS MariaDB DB instance with large storage capacity to accommodate migration efforts. Post-migration, the company purged unwanted data from the instance. The company now want to downsize storage to save money. The solution must have the least impact on production and near-zero downtime.
Which solution would meet these requirements?

• A.Create a snapshot of the old databases and restore the snapshot with the required storage
• B.Create a new database using native backup and restore
• C.Create a new read replica and make it the primary by terminating the existing primary
• D.Create a new RDS DB instance with the required storage and move the databases from the old instancesto the new instance using AWS DMS

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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.Increase the local storage by upgrading the database engine version.
• B.Modify the Aurora DB cluster to enable automatic volume resizing.
• C.Modify the DB instance to use an instance class that provides more local SSD storage.
• D.Modify the DB instance and configure the required storage volume in the configuration section.

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