AWS Certified Database – Specialty AWS Certified Test Paper

Sample Questions:

Q) An AWS Cloud Formation stack that included an Amazon RDS DB instance was accidentally deleted and recent data was lost. A Database Specialist needs to add RDS settings to the Cloud Formation template to reduce the chance of accidental instance data loss in the future. Which settings will meet this requirement? (Choose three.)

A. Set Deletion Protection to True

B. Set Multi AZ to True

C. Set Termination Protection to True

D. Set Delete Automated Backups to False

E. Set Deletion Policy to Delete

F. Set Deletion Policy to Retain

Q) A Database Specialist is troubleshooting an application connection failure on an Amazon Aurora DB cluster with multiple Aurora Replicas that had been running with no issues for the past 2 months. The connection failure lasted for 5 minutes and corrected itself after that. The Database Specialist reviewed the Amazon RDS events and determined a failover event occurred at that time. The failover process took around 15 seconds to complete. What is the MOST likely cause of the 5-minute connection outage?

A. After a database crash, Aurora needed to replay the redo log from the last database checkpoint

B. The client-side application is caching the DNS data and its TTL is set too high

C. After failover, the Aurora DB cluster needs time to warm up before accepting client connections

D. There were no active Aurora Replicas in the Aurora DB cluster

Q) A company is deploying a solution in Amazon Aurora by migrating from an on-premises system. The IT department has established an AWS Direct Connect link from the company’s data center. The company’s Database Specialist has selected the option to require SSL/TLS for connectivity to prevent plaintext data from being set over the network. The migration appears to be working successfully, and the data can be queried from a desktop machine. Two Data Analysts have been asked to query and validate the data in the new Aurora DB cluster. Both Analysts are unable to connect to Aurora. Their user names and passwords have been verified as valid and the Database Specialist can connect to the DB cluster using their accounts. The Database Specialist also verified that the security group configuration allows network from all corporate IP addresses. What should the Database Specialist do to correct the Data Analysts’ inability to connect?

A. Restart the DB cluster to apply the SSL change.

B. Instruct the Data Analysts to download the root certificate and use the SSL certificate on the connection string to connect.

C. Add explicit mappings between the Data Analysts’ IP addresses and the instance in the security group assigned to the DB cluster.

D. Modify the Data Analysts’ local client firewall to allow network traffic to AWS.

Q) A company is concerned about the cost of a large-scale, transactional application using Amazon DynamoDB that only needs to store data for 2 days before it is deleted. In looking at the tables, a Database Specialist notices that much of the data is months old, and goes back to when the application was first deployed. What can the Database Specialist do to reduce the overall cost?

A. Create a new attribute in each table to track the expiration time and create an AWS Glue transformation to delete entries more than 2 days old.

B. Create a new attribute in each table to track the expiration time and enable DynamoDB Streams on each table.

C. Create a new attribute in each table to track the expiration time and enable time to live (TTL) on each table.

D. Create an Amazon Cloud Watch Events event to export the data to Amazon S3 daily using AWS Data Pipeline and then truncate the Amazon DynamoDB table.