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A company's application on EC2 instances relies on a Single-AZ RDS for MySQL DB instance. The SysOps administrator needs to ensure failover to minimize downtime.
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Question 339 - SOA-C02 discussion

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A company is planning to host an application on a set of Amazon EC2 instances that are distributed across multiple Availability Zones. The application must be able to scale to millions of requests each second.

A SysOps administrator must design a solution to distribute the traffic to the EC2 instances. The solution must be optimized to handle sudden and volatile traffic patterns while using a single static IP address for each Availability Zone.

Which solution will meet these requirements?

A.
Amazon Simple Queue Service (Amazon SQS) queue
Answers
A.
Amazon Simple Queue Service (Amazon SQS) queue
B.
Application Load Balancer
Answers
B.
Application Load Balancer
C.
AWS Global Accelerator
Answers
C.
AWS Global Accelerator
D.
Network Load Balancer
Answers
D.
Network Load Balancer
Suggested answer: D

Explanation:

'Network Load Balancer is optimized to handle sudden and volatile traffic patterns while using a single static IP address per Availability Zone.' https://aws.amazon.com/elasticloadbalancing/network-load-balancer/

For an application that must scale to millions of requests per second and requires a single static IP address for each Availability Zone, a Network Load Balancer (NLB) is the most suitable option. NLBs are designed for high-performance, low-latency networking, and they support static IP addresses for each Availability Zone, making it ideal for volatile traffic patterns. Option D is the correct choice. AWS provides extensive documentation on NLB capabilities and configurations that suit these requirements AWS Network Load Balancer.

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asked 16/09/2024
Jimmie Campbell
33 questions
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