SOA-C02 · Question #714
A SysOps administrator manages an Auto Scaling group of Amazon EC2 instances for an application. Each instance requires a significant amount of dynamic configuration at boot time. The configurations…
The correct answer is D. Add a warm pool of instances to the Auto Scaling group. A warm pool keeps EC2 instances pre-initialized with your dynamic boot configuration, so they can enter service quickly when scaling out - dramatically cutting readiness time without changing the AMI.
Question
A SysOps administrator manages an Auto Scaling group of Amazon EC2 instances for an application. Each instance requires a significant amount of dynamic configuration at boot time. The configurations cannot be added to a custom Amazon Machine Image (AMI). The configuration requirements have resulted in significant delays before each EC2 instance is ready to serve users. The SysOps administrator needs to reduce the amount of time required to scale to meet increased demand on the application. Which solution will meet this requirement?
Options
- AUse Spot Instances when the application load is high.
- BAdd an additional Availability Zone to the Auto Scaling group.
- CIncrease the scaling plan's warmup period to improve instance boot times.
- DAdd a warm pool of instances to the Auto Scaling group.
How the community answered
(31 responses)- A6% (2)
- B10% (3)
- C3% (1)
- D81% (25)
Explanation
A warm pool keeps EC2 instances pre-initialized with your dynamic boot configuration, so they can enter service quickly when scaling out - dramatically cutting readiness time without changing the AMI.
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