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An ecommerce company uses Amazon DynamoDB as the backend for its payments system. A new regulation requires the company to log all data access requests for financial audits. For this purpose, the company plans to use AWS logging and save logs to Amazon S3 How can a database specialist activate logging on the database?
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A Database Specialist is setting up a new Amazon Aurora DB cluster with one primary instance and three Aurora Replicas for a highly intensive, business-critical application. The Aurora DB cluster has one medium- sized primary instance, one large-sized replica, and two medium sized replicas. The Database Specialist did not assign a promotion tier to the replicas. In the event of a primary failure, what will occur?
A company maintains several databases using Amazon RDS for MySQL and PostgreSQL. Each RDS database generates log files with retention periods set to their default values. The company has now mandated that database logs be maintained for up to 90 days in a centralized repository to facilitate real-time and after- the-fact analyses. What should a Database Specialist do to meet these requirements with minimal effort?

Question 40 - DBS-C01 discussion

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A large company is using an Amazon RDS for Oracle Multi-AZ DB instance with a Java application. As a part of its disaster recovery annual testing, the company would like to simulate an Availability Zone failure and record how the application reacts during the DB instance failover activity. The company does not want to make any code changes for this activity.

What should the company do to achieve this in the shortest amount of time?

A.
Use a blue-green deployment with a complete application-level failover test
Answers
A.
Use a blue-green deployment with a complete application-level failover test
B.
Use the RDS console to reboot the DB instance by choosing the option to reboot with failover
Answers
B.
Use the RDS console to reboot the DB instance by choosing the option to reboot with failover
C.
Use RDS fault injection queries to simulate the primary node failure
Answers
C.
Use RDS fault injection queries to simulate the primary node failure
D.
Add a rule to the NACL to deny all traffic on the subnets associated with a single Availability Zone
Answers
D.
Add a rule to the NACL to deny all traffic on the subnets associated with a single Availability Zone
Suggested answer: B

Explanation:


https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_RebootInstance.html

https://exain.wordpress.com/2017/07/12/amazon-rds-multi-az-setup-failover-simulation/

"Rebooting with failover is beneficial when you want to simulate a failure of a DB instance for testing, or restore operations to the original AZ after a failover occurs."

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asked 16/09/2024
Maurizio Toniato
31 questions
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