Free Amazon DBS-C01 Exam Practice Questions
AWS Certified Database - Specialty
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Amazon DBS-C01 Exam Sample Questions & Answers
A company has an application that uses an Amazon DynamoDB table as its data store. During normal business days, the throughput requirements from the application are uniform and consist of 5 standard write calls per second to the DynamoDB table. Each write call has 2 KB of data.
For 1 hour each day, the company runs an additional automated job on the DynamoDB table that makes 20 write requests per second. No other application writes to the DynamoDB table. The DynamoDB table does not have to meet any additional capacity requirements.
How should a database specialist configure the DynamoDB table's capacity to meet these requirements MOST cost-effectively?
A company with 500,000 employees needs to supply its employee list to an application used by human resources. Every 30 minutes, the data is exported using the LDAP service to load into a new Amazon DynamoDB table. The data model has a base table with Employee ID for the partition key and a global secondary index with Organization ID as the partition key.
While importing the data, a database specialist receives ProvisionedThroughputExceededException errors. After increasing the provisioned write capacity units
(WCUs) to 50,000, the specialist receives the same errors. Amazon CloudWatch metrics show a consumption of 1,500 WCUs.
What should the database specialist do to address the issue?
A financial services company runs an on-premises MySQL database for a critical application. The company is dissatisfied with its current database disaster recovery (DR) solution. The application experiences a significant amount of downtime whenever the database fails over to its DR facility. The application also experiences slower response times when reports are processed on the same database. To minimize the downtime in DR situations, the company has decided to migrate the database to AWS. The company requires a solution that is highly available and the most cost-effective.
Which solution meets these requirements?
An application reads and writes data to an Amazon RDS for MySQL DB instance. A new reporting dashboard needs read-only access to the database. When the application and reports are both under heavy load, the database experiences performance degradation. A database specialist needs to improve the database performance.
What should the database specialist do to meet these requirements?
A finance company migrated its 3 ' on-premises PostgreSQL database to an Amazon Aurora PostgreSQL DB cluster. During a review after the migration, a database specialist discovers that the database is not encrypted at rest. The database must be encrypted at rest as soon as possible to meet security requirements. The database specialist must enable encryption for the DB cluster with minimal downtime.
Which solution will meet these requirements?
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