DBS-C01 Exam Dumps - AWS Certified Database - Specialty

Ace Your AWS Certified Database Specialty Exam with Dumpsarena Preparing for the AWS Certified Database Specialty exam? Dumpsarena has you covered with real exam-style questions and in-depth explanations designed to help you master the key concepts and pass with confidence. 👉 Access the complete set of 200+ questions here:

🔗 Dumpsarena AWS Database Specialty Practice Exam 

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✅ Try 10 Free Sample Questions Below:

Question 1:

 A developer is designing an IoT application that stores device event data in DynamoDB. How can the app automatically delete data older than 30 days? A. Enable TTL on the table and store expiration time in epoch format

B. Use a Lambda function with CloudWatch to delete old records

C. Create a new DynamoDB table every 30 days

D. Use DynamoDB Streams with Lambda to delete expired records ✔ Correct Answer: A

TTL (Time to Live) is the optimal and cost-effective way to automatically delete expired items from DynamoDB tables.

🔗 AWS TTL Documentation 

Question 2:

 A retail company is building a data lake on Amazon S3 and wants to run SQL queries and generate BI reports. Which AWS services are best suited? (Select TWO)A. Amazon Redshift Spectrum

B. AWS Lambda

C. AWS Glue

D. Amazon Athena

E. Amazon QuickSight ✔ Correct Answers: A and D

Redshift Spectrum allows fast reporting from S3 data, while Athena enables ad-hoc SQL querying directly on S3 data.

🔗 Athena vs. Redshift Spectrum 

Question 3:

 A company is migrating from RDS MySQL to Aurora MySQL. What’s the most efficient method? A. AWS Database Migration Service

B. Use mysqldump to export/import data

C. Create an Aurora Read Replica and promote it

D. Copy backups to S3 and restore manually ✔ Correct Answer: C

Creating an Aurora Read Replica and promoting it to a standalone cluster is seamless and automated.

🔗 Aurora Migration Guide 

Question 4:

 A North American company wants to test their DynamoDB-based backend in Europe using production-like data. What's the best approach? A. Use Point-in-Time Recovery to restore the table in a new region

B. Use Lambda to replicate data from streams

C. Export data using AWS Glue and import it

D. Use Global Tables to test on production data ✔ Correct Answer: A

Point-in-Time Restore allows full, consistent cross-region DynamoDB backups without manual effort.

🔗 PITR Guide 

Question 5:

 An Amazon RDS MySQL instance fails to reboot due to “incompatible parameters.” How can this be resolved? A. Use SQL statements to reset system variables

B. Reset the default DB parameter group

C. Switch to the default DB parameter group and reboot

D. Manually reset custom parameters to default and reboot ✔ Correct Answer: D

Identify and revert incompatible custom parameters to defaults using the DB parameter group settings.

🔗 AWS RDS Parameter Troubleshooting 

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Question 6:

 An RDS DBA sets the time_zone in the DB Parameter Group, but users report incorrect time zones. What steps can help? (Choose TWO)A. Make sure the correct DB Parameter Group is applied

B. Ask developers to update application code

C. Reboot the RDS instance

D. Ask users to reconnect

E. Use rdsadmin_util.alter_db_time_zone procedure ✔ Correct Answers: A and D

Applying the correct DB Parameter Group and reconnecting ensures that time zone settings are properly reflected.

🔗 MariaDB Time Zone Settings