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Question 832 - SAA-C03 discussion

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A company recently launched a new application for its customers. The application runs on multiple Amazon EC2 instances across two Availability Zones. End users use TCP to communicate with the application.

The application must be highly available and must automatically scale as the number of users increases.

Which combination of steps will meet these requirements MOST cost-effectively? (Select TWO.)

A.

Add a Network Load Balancer in front of the EC2 instances.

Answers
A.

Add a Network Load Balancer in front of the EC2 instances.

B.

Configure an Auto Scaling group for the EC2 instances.

Answers
B.

Configure an Auto Scaling group for the EC2 instances.

C.

Add an Application Load Balancer in front of the EC2 instances.

Answers
C.

Add an Application Load Balancer in front of the EC2 instances.

D.

Manually add more EC2 instances for the application.

Answers
D.

Manually add more EC2 instances for the application.

E.

Add a Gateway Load Balancer in front of the EC2 instances.

Answers
E.

Add a Gateway Load Balancer in front of the EC2 instances.

Suggested answer: A, B

Explanation:

For an application requiring TCP communication and high availability:

Network Load Balancer (NLB) is the best choice for load balancing TCP traffic because it is designed for handling high-throughput, low-latency connections.

Auto Scaling group ensures that the application can automatically scale based on demand, adding or removing EC2 instances as needed, which is crucial for handling user growth.

Option C (Application Load Balancer): ALB is primarily for HTTP/HTTPS traffic, not ideal for TCP.

Option D (Manual scaling): Manually adding instances does not provide the automation or scalability required.

Option E (Gateway Load Balancer): GLB is used for third-party virtual appliances, not for direct application load balancing.

AWS

Reference:

Network Load Balancer

Auto Scaling Group

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asked 27/10/2024
Steve Marechal
37 questions
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