A company needs to migrate Oracle Database Standard Edition running on an Amazon EC2 instance to an Amazon RDS for Oracle DB instance with Multi-AZ. The database supports an ecommerce website that runs continuously. The company can only provide a maintenance window of up to 5 minutes. Which solution will meet these requirements?

1. A. Configure Oracle Real Application Clusters (RAC) on the EC2 instance and the RDS DB instance.Update the connection string to point to the RAC cluste
2. B. Once the EC2 instance and RDS DB instance are in sync, fail over from Amazon EC2 to Amazon RDS.
3. C. Export the Oracle database from the EC2 instance using Oracle Data Pump and perform an import into Amazon RD
4. D. Stop the application for the entire proces
5. E. When the import is complete, change thedatabase connection string and then restart the application.
6. F. Configure AWS DMS with the EC2 instance as the source and the RDS DB instance as the destination.Stop the application when the replication is in sync, change the database connection string, and then restart the application.
7. G. Configure AWS DataSync with the EC2 instance as the source and the RDS DB instance as the destinatio
8. H. Stop the application when the replication is in sync, change the database connection string, and then restart the application.

Correct Answer: C

A company developed an AWS CloudFormation template used to create all new Amazon DynamoDB tables in its AWS account. The template configures provisioned throughput capacity using hard-coded values. The company wants to change the template so that the tables it creates in the future have independently configurable read and write capacity units assigned.
Which solution will enable this change?

1. A. Add values for the rcuCount and wcuCount parameters to the Mappings section of the template.Configure DynamoDB to provision throughput capacity using the stack’s mappings.
2. B. Add values for two Number parameters, rcuCount and wcuCount, to the templat
3. C. Replace the hard-coded values with calls to the Ref intrinsic function, referencing the new parameters.
4. D. Add values for the rcuCount and wcuCount parameters as outputs of the templat
5. E. Configure DynamoDB to provision throughput capacity using the stack outputs.
6. F. Add values for the rcuCount and wcuCount parameters to the Mappings section of the templat
7. G. Replace the hard-coded values with calls to the Ref intrinsic function, referencing the new parameters.

Correct Answer: B
Input parameter and FindInMap You can use an input parameter with the Fn::FindInMap function to refer to a specific value in a map. For example, suppose you have a list of regions and environment types that map to a specific AMI ID. You can select the AMI ID that your stack uses by using an input parameter (EnvironmentType). To determine the region, use the AWS::Region pseudo parameter, which gets the AWS Region in which you create the stack.
https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/parameters-section-structure.html

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.)

1. A. Enable in-transit and at-rest encryption on the ElastiCache cluster.
2. B. Ensure that Amazon CloudWatch metrics are configured in the ElastiCache cluster.
3. C. 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.
4. D. Create an IAM policy to allow the application service roles to access all ElastiCache API actions.
5. E. 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.
6. F. Ensure the cluster is created with the auth-token parameter and that the parameter is used in all subsequent commands.

Correct Answer: ACF
https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/encryption.html

A company has a 20 TB production Amazon Aurora DB cluster. The company runs a large batch job overnight to load data into the Aurora DB cluster. To ensure the company’s development team has the most up-to-date data for testing, a copy of the DB cluster must be available in the shortest possible time after the batch job completes.
How should this be accomplished?

1. A. Use the AWS CLI to schedule a manual snapshot of the DB cluste
2. B. Restore the snapshot to a new DB cluster using the AWS CLI.
3. C. Create a dump file from the DB cluste
4. D. Load the dump file into a new DB cluster.
5. E. Schedule a job to create a clone of the DB cluster at the end of the overnight batch process.
6. F. Set up a new daily AWS DMS task that will use cloning and change data capture (CDC) on the DB cluster to copy the data to a new DB cluste
7. G. Set up a time for the AWS DMS stream to stop when the new cluster is current.

Correct Answer: C

A company is migrating a mission-critical 2-TB Oracle database from on premises to Amazon Aurora. The cost for the database migration must be kept to a minimum, and both the on-premises Oracle database and the Aurora DB cluster must remain open for write traffic until the company is ready to completely cut over to Aurora.
Which combination of actions should a database specialist take to accomplish this migration as quickly as possible? (Choose two.)

1. A. Use the AWS Schema Conversion Tool (AWS SCT) to convert the source database schem
2. B. Then restore the converted schema to the target Aurora DB cluster.
3. C. Use Oracle’s Data Pump tool to export a copy of the source database schema and manually edit the schema in a text editor to make it compatible with Aurora.
4. D. Create an AWS DMS task to migrate data from the Oracle database to the Aurora DB cluste
5. E. Select the migration type to replicate ongoing changes to keep the source and target databases in sync until the company is ready to move all user traffic to the Aurora DB cluster.
6. F. Create an AWS DMS task to migrate data from the Oracle database to the Aurora DB cluste
7. G. Once the initial load is complete, create an AWS Kinesis Data Firehose stream to perform change data capture (CDC) until the company is ready to move all user traffic to the Aurora DB cluster.
8. H. Create an AWS Glue job and related resources to migrate data from the Oracle database to the Aurora DB cluste
9. I. Once the initial load is complete, create an AWS DMS task to perform change data capture (CDC) until the company is ready to move all user traffic to the Aurora DB cluster.

Correct Answer: AC