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Question 247 - CLF-C02 discussion

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A company is using Amazon RDS.

A company is launching a critical business application in an AWS Region.

How can the company increase resilience for this application?

A.
Deploy a copy of the application in another AWS account.
Answers
A.
Deploy a copy of the application in another AWS account.
B.
Deploy the application by using multiple VPCs.
Answers
B.
Deploy the application by using multiple VPCs.
C.
Deploy the application by using multiple subnets.
Answers
C.
Deploy the application by using multiple subnets.
D.
Deploy the application by using multiple Availability Zones.
Answers
D.
Deploy the application by using multiple Availability Zones.
Suggested answer: D

Explanation:

Deploying the application by using multiple Availability Zones is the best way to increase resilience for the application. According to the Amazon RDS User Guide, "Amazon RDS provides high availability and failover support for DB instances using Multi-AZ deployments. In a Multi-AZ deployment, Amazon RDS automatically provisions and maintains a synchronous standby replica in a different Availability Zone. The primary DB instance is synchronously replicated across Availability Zones to a standby replica to provide data redundancy, eliminate I/O freezes, and minimize latency spikes during system backups."4 Deploying a copy of the application in another AWS account, using multiple VPCs, or using multiple subnets do not provide the same level of resilience as using multiple Availability Zones.

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asked 16/09/2024
Andrew Chan
37 questions
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