SAA-C03 · Question #701
A company runs multiple web applications on Amazon EC2 instances behind a single Application Load Balancer (ALB). The application experiences unpredictable traffic spikes throughout each day. The traf
The correct answer is A. Use EC2 instances in an Auto Scaling group. Configure the ALB and Auto Scaling group to use a. A target tracking scaling policy allows the Auto Scaling group to automatically add and remove EC2 capacity in response to real-time demand, which is ideal for unpredictable spikes that last a short time. The ALB continues to distribute traffic across the scaled-out instances, re
Question
A company runs multiple web applications on Amazon EC2 instances behind a single Application Load Balancer (ALB). The application experiences unpredictable traffic spikes throughout each day. The traffic spikes cause high latency. The unpredictable spikes last less than 3 hours. The company needs a solution to resolve the latency issue caused by traffic spikes. Which solution will meet this requirement?
Options
- AUse EC2 instances in an Auto Scaling group. Configure the ALB and Auto Scaling group to use a
- BUse EC2 Reserved Instances in an Auto Scaling group. Configure the Auto Scaling group to use
- CUse EC2 Spot Instances in an Auto Scaling group. Configure the Auto Scaling group to use a
- DUse EC2 Reserved Instances in an Auto Scaling group. Replace the ALB with a Network Load
How the community answered
(29 responses)- A79% (23)
- B10% (3)
- C3% (1)
- D7% (2)
Explanation
A target tracking scaling policy allows the Auto Scaling group to automatically add and remove EC2 capacity in response to real-time demand, which is ideal for unpredictable spikes that last a short time. The ALB continues to distribute traffic across the scaled-out instances, reducing latency during spikes and scaling back down afterward.
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