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NEW QUESTION 49 A company has an application that uses an Amazon DynamoDB table to store user data. Every morning, a single-threaded process calls the DynamoDB API Scan operation to scan the entire table and generate a critical start-of-day report for management. A successful marketing campaign recently doubled the number of items in the table, and now the process takes too long to run and the report is not generated in time. A database specialist needs to improve the performance of the process. The database specialist notes that, when the process is running, 15% of the table's provisioned read capacity units (RCUs) are being used. What should the database specialist do?

  • A. Enable auto scaling for the DynamoDB table.
  • B. Double the table's provisioned RCUs.
  • C. Set the Limit and Offset parameters before every call to the API.
  • D. Use four threads and parallel DynamoDB API Scan operations.

Answer: D Explanation: Explanation https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Scan.html#Scan.ParallelScan   NEW QUESTION 50 A company has a production environment running on Amazon RDS for SQL Server with an in-house web application as the front end. During the last application maintenance window, new functionality was added to the web application to enhance the reporting capabilities for management. Since the update, the application is slow to respond to some reporting queries. How should the company identify the source of the problem?

  • A. Use AWS X-Ray deployed with Amazon RDS to track query system traces.
  • B. Install and configure Amazon CloudWatch Application Insights for Microsoft .NET and Microsoft SQL Server. Use a CloudWatch dashboard to identify the root cause.
  • C. Enable RDS Performance Insights and determine which query is creating the problem. Request changes to the query to address the problem.
  • D. Create a support request and work with AWS Support to identify the source of the issue.

Answer: C   NEW QUESTION 51 A database specialist is managing an application in the us-west-1 Region and wants to set up disaster recovery in the us-east-1 Region. The Amazon Aurora MySQL DB cluster needs an RPO of 1 minute and an RTO of 2 minutes. Which approach meets these requirements with no negative performance impact?

  • A. Create an Aurora Global Database.
  • B. Enable asynchronous binlog replication.
  • C. Enable synchronous replication.
  • D. Copy Aurora incremental snapshots to the us-east-1 Region.

Answer: A Explanation: https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-global-database-disaster-recovery.html   NEW QUESTION 52 ...... P.S. Free & New DBS-C01 dumps are available on Google Drive shared by TestPDF: https://drive.google.com/open?id=1pKQ-JdxhoHpCQTcHum8cfycXAe0ee-Bz