A Database Specialist Has Migrated an On-Premises Oracle Database to Amazon

question 41

Multiple Choice

A Database Specialist has migrated an on-premises Oracle database to Amazon Aurora PostgreSQL. The schema and the data have been migrated successfully. The on-premises database server was also being used to run database maintenance cron jobs written in Python to perform tasks including data purging and generating data exports. The logs for these jobs show that, most of the time, the jobs completed within 5 minutes, but a few jobs took up to 10 minutes to complete. These maintenance jobs need to be set up for Aurora PostgreSQL. How can the Database Specialist schedule these jobs so the setup requires minimal maintenance and provides high availability?

• A) Create cron jobs on an Amazon EC2 instance to run the maintenance jobs following the required schedule.
• B) Connect to the Aurora host and create cron jobs to run the maintenance jobs following the required schedule.
• C) Create AWS Lambda functions to run the maintenance jobs and schedule them with Amazon CloudWatch Events.
• D) Create the maintenance job using the Amazon CloudWatch job scheduling plugin.

---

Definitions:

Cash Outflow

The total amount of money leaving a company, encompassing expenses, investments, and other payments within a given period.

Pays Supplier

The process of remitting payment to suppliers for goods or services received, which is crucial for sustaining business operations and relationships.

Investing Activities

Transactions involving the acquisition or disposal of long-term assets and investments, used in cash flow analysis.

Cash Inflows

Money received by a business, typically from operations, investments, or financing.