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Free DBS-C01 Exam Braindumps (page: 19)

Page 19 of 82
PDF with 327 Questions

A company is developing a multi-tier web application hosted on AWS using Amazon Aurora as the database. The application needs to be deployed to production and other non-production environments. A Database Specialist needs to specify different MasterUsername and MasterUserPassword properties in the AWS CloudFormation templates used for automated deployment. The CloudFormation templates are version controlled in the company’s code repository. The company also needs to meet compliance requirement by routinely rotating its database master password for production.
What is most secure solution to store the master password?

  1. Store the master password in a parameter file in each environment. Reference the environment-specific parameter file in the CloudFormation template.
  2. Encrypt the master password using an AWS KMS key. Store the encrypted master password in the CloudFormation template.
  3. Use the secrets manager dynamic reference to retrieve the master password stored in AWS Secrets Manager and enable automatic rotation.
  4. Use the ssm dynamic reference to retrieve the master password stored in the AWS Systems Manager Parameter Store and enable automatic rotation.

Answer(s): C



A company is writing a new survey application to be used with a weekly televised game show. The application will be available for 2 hours each week. The company expects to receive over 500,000 entries every week, with each survey asking 2-3 multiple choice questions of each user. A Database Specialist needs to select a platform that is highly scalable for a large number of concurrent writes to handle he anticipated volume.
Which AWS services should the Database Specialist consider? (Choose two.)

  1. Amazon DynamoDB
  2. Amazon Redshift
  3. Amazon Neptune
  4. Amazon Elasticsearch Service
  5. Amazon ElastiCache

Answer(s): A,E



A company has migrated a single MySQL database to Amazon Aurora. The production data is hosted in a DB cluster in VPC_PROD, and 12 testing environments are hosted in VPC_TEST using the same AWS account. Testing results in minimal changes to the test data. The Development team wants each environment refreshed nightly so each test database contains fresh production data every day.

Which migration approach will be the fastest and most cost-effective to implement?

  1. Run the master in Amazon Aurora MySQL. Create 12 clones in VPC_TEST, and script the clones to be deleted and re-created nightly.
  2. Run the master in Amazon Aurora MySQL. Take a nightly snapshot, and restore it into 12 databases in VPC_TEST using Aurora Serverless.
  3. Run the master in Amazon Aurora MySQL. Create 12 Aurora Replicas in VPC_TEST, and script the replicas to be deleted and re-created nightly.
  4. Run the master in Amazon Aurora MySQL using Aurora Serverless. Create 12 clones in VPC_TEST, and script the clones to be deleted and re-created nightly.

Answer(s): A



A large ecommerce company uses Amazon DynamoDB to handle the transactions on its web portal. Traffic patterns throughout the year are usually stable; however, a large event is planned. The company knows that traffic will increase by up to 10 times the normal load over the 3-day event.
When sale prices are published during the event, traffic will spike rapidly.

How should a Database Specialist ensure DynamoDB can handle the increased traffic?

  1. Ensure the table is always provisioned to meet peak needs
  2. Allow burst capacity to handle the additional load
  3. Set an AWS Application Auto Scaling policy for the table to handle the increase in traffic
  4. Preprovision additional capacity for the known peaks and then reduce the capacity after the event

Answer(s): B



Page 19 of 82



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