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Question 437 - CLF-C02 discussion

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A company has a MySQL database running on a single Amazon EC2 instance. The company now requires higher availability in the event of an outage.

Which set of tasks would meet this requirement?

A.
Add an Application Load Balancer in front of the EC2 instance.
Answers
A.
Add an Application Load Balancer in front of the EC2 instance.
B.
Configure EC2 Auto Recovery to move the instance to another Availability Zone.
Answers
B.
Configure EC2 Auto Recovery to move the instance to another Availability Zone.
C.
Migrate to Amazon RDS and enable Multi-AZ.
Answers
C.
Migrate to Amazon RDS and enable Multi-AZ.
D.
Enable termination protection for the EC2 instance to avoid outages.
Answers
D.
Enable termination protection for the EC2 instance to avoid outages.
Suggested answer: C

Explanation:

The set of tasks that would meet the requirement of having higher availability for a MySQL database running on a single Amazon EC2 instance is to migrate to Amazon RDS and enable Multi-AZ. Amazon RDS is a fully managed relational database service that supports MySQL and other popular database engines. By enabling Multi-AZ, users can have a primary database in one Availability Zone and a synchronous standby replica in another Availability Zone. In case of a planned or unplanned outage of the primary database, Amazon RDS automatically fails over to the standby replica with minimal disruption3. Adding an Application Load Balancer in front of the EC2 instance, configuring EC2 Auto Recovery to move the instance to another Availability Zone, or enabling termination protection for the EC2 instance would not provide higher availability for the database, as they do not address the single point of failure or data replication issues.

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asked 16/09/2024
ME BOX
30 questions
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