Topic 1 Question 30
A development team runs monthly resource-intensive tests on its general purpose Amazon RDS for MySQL DB instance with Performance Insights enabled. The testing lasts for 48 hours once a month and is the only process that uses the database. The team wants to reduce the cost of running the tests without reducing the compute and memory attributes of the DB instance. Which solution meets these requirements MOST cost-effectively?
Stop the DB instance when tests are completed. Restart the DB instance when required.
Use an Auto Scaling policy with the DB instance to automatically scale when tests are completed.
Create a snapshot when tests are completed. Terminate the DB instance and restore the snapshot when required.
Modify the DB instance to a low-capacity instance when tests are completed. Modify the DB instance again when required.
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- 正解だと思う選択肢: C
Answer C, you still pay for storage when an RDS database is stopped
👍 23hanhdroid2022/10/10 - 正解だと思う選択肢: C
C - Create a manual Snapshot of DB and shift to S3- Standard and Restore form Manual Snapshot when required.
Not A - By stopping the DB although you are not paying for DB hours you are still paying for Provisioned IOPs , the storage for Stopped DB is more than Snapshot of underlying EBS vol. and Automated Back ups . Not D - Is possible but not MOST cost effective, no need to run the RDS when not needed.
👍 7KVK162022/10/14 - 正解だと思う選択肢: C
Explanation from the same question on UDEMY! Taking a snapshot of the instance and storing the snapshot is the most cost-effective solution. When needed, a new database can be created from the snapshot. Performance Insights can be enabled on the new instance if needed. Note that the previous data from Performance Insights will not be associated with the new instance, however this was not a requirement. CORRECT: "Create a snapshot of the database when the tests are completed. Terminate the DB instance. Create a new DB instance from the snapshot when required” is the correct answer (as explained above.)
👍 4HayLLlHuK2022/12/27
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