SAA-C03 · Question #669
A company uses a three-tier application architecture that includes web servers, application servers, and a database cluster inside the same VPC. The traffic between the tiers must remain inside the VP
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Question
A company uses a three-tier application architecture that includes web servers, application servers, and a database cluster inside the same VPC. The traffic between the tiers must remain inside the VPC. The web servers use Amazon Route 53 and a private hosted zone to resolve the application name to application server IP addresses by using a round-robin method. The application tier uses a fixed number of Amazon EC2 instances. The EC2 instances are near their CPU usage capacity. The company wants to add scalability to the application tier without changing the application code. Which solution will meet these requirements?
Options
- ACreate an Amazon Simple Queue Service (Amazon SQS) queue between the web tier and the
- BRun the application servers in an Auto Scaling group behind an internal Application Load
- CCreate an Amazon Simple Queue Service (Amazon SQS) queue between the application tier and
- DRun the application servers in an Auto Scaling group behind an internet-facing Application Load
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