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Amazon DBS-C01 Exam Questions
AWS Certified Database - Specialty (Page 5 )

Updated On: 10-Mar-2026
Page 5 of 67
PDF with 359 Questions

A company is running a finance application on an Amazon RDS for MySQL DB instance. The application is governed by multiple financial regulatory agencies. The RDS DB instance is set up with security groups to allow access to certain Amazon EC2 servers only. AWS KMS is used for encryption at rest.
Which step will provide additional security?

  1. Set up NACLs that allow the entire EC2 subnet to access the DB instance
  2. Disable the master user account
  3. Set up a security group that blocks SSH to the DB instance
  4. Set up RDS to use SSL for data in transit

Answer(s): D

Explanation:


Reference:

https://aws.amazon.com/blogs/database/applying-best-practices-for-securing-sensitive-data-in-amazon-rds/



A company needs a data warehouse solution that keeps data in a consistent, highly structured format. The company requires fast responses for end-user queries when looking at data from the current year, and users must have access to the full 15-year dataset, when needed. This solution also needs to handle a fluctuating number incoming queries. Storage costs for the 100 TB of data must be kept low.

Which solution meets these requirements?

  1. Leverage an Amazon Redshift data warehouse solution using a dense storage instance type while keeping all the data on local Amazon Redshift storage. Provision enough instances to support high demand.
  2. Leverage an Amazon Redshift data warehouse solution using a dense storage instance to store the most recent data. Keep historical data on Amazon S3 and access it using the Amazon Redshift Spectrum layer. Provision enough instances to support high demand.
  3. Leverage an Amazon Redshift data warehouse solution using a dense storage instance to store the most recent data. Keep historical data on Amazon S3 and access it using the Amazon Redshift Spectrum layer. Enable Amazon Redshift Concurrency Scaling.
  4. Leverage an Amazon Redshift data warehouse solution using a dense storage instance to store the most recent data. Keep historical data on Amazon S3 and access it using the Amazon Redshift Spectrum layer. Leverage Amazon Redshift elastic resize.

Answer(s): C



A gaming company wants to deploy a game in multiple Regions. The company plans to save local high scores in Amazon DynamoDB tables in each Region. A Database Specialist needs to design a solution to automate the deployment of the database with identical configurations in additional Regions, as needed. The solution should also automate configuration changes across all Regions.

Which solution would meet these requirements and deploy the DynamoDB tables?

  1. Create an AWS CLI command to deploy the DynamoDB table to all the Regions and save it for future deployments.
  2. Create an AWS CloudFormation template and deploy the template to all the Regions.
  3. Create an AWS CloudFormation template and use a stack set to deploy the template to all the Regions.
  4. Create DynamoDB tables using the AWS Management Console in all the Regions and create a step-by- step guide for future deployments.

Answer(s): C



A team of Database Specialists is currently investigating performance issues on an Amazon RDS for MySQL DB instance and is reviewing related metrics. The team wants to narrow the possibilities down to specific database wait events to better understand the situation.

How can the Database Specialists accomplish this?

  1. Enable the option to push all database logs to Amazon CloudWatch for advanced analysis
  2. Create appropriate Amazon CloudWatch dashboards to contain specific periods of time
  3. Enable Amazon RDS Performance Insights and review the appropriate dashboard
  4. Enable Enhanced Monitoring will the appropriate settings

Answer(s): C



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?

  1. Use a blue-green deployment with a complete application-level failover test
  2. Use the RDS console to reboot the DB instance by choosing the option to reboot with failover
  3. Use RDS fault injection queries to simulate the primary node failure
  4. Add a rule to the NACL to deny all traffic on the subnets associated with a single Availability Zone

Answer(s): B

Explanation:


Reference:

https://wellarchitectedlabs.com/Reliability/300_Testing_for_Resiliency_of_EC2_RDS_and_S3/Lab_Guide.html



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