ExpertMedium1 markMultiple Choice
AWS SAA-C03 · Question 23 · Domain 2.1: Scalable Architectures
A company uses an Auto Scaling group (ASG) for its web servers. Traffic is highly unpredictable, but the company wants to maintain an average CPU utilization of 50% across all instances. <br/><br/>Which TWO actions should a solutions architect take? (Select TWO.)
A company uses an Auto Scaling group (ASG) for its web servers. Traffic is highly unpredictable, but the company wants to maintain an average CPU utilization of 50% across all instances. <br/><br/>Which TWO actions should a solutions architect take? (Select TWO.)
Answer options:
A.
Configure a simple scaling policy.
B.
Configure a target tracking scaling policy.
C.
Configure a step scaling policy.
D.
Set the target value to 50% CPU utilization.
E.
Use predictive scaling.
How to approach this question
Identify the scaling policy designed to maintain a specific metric target.
Full Answer
Target tracking scaling policies increase or decrease the current capacity of the group based on a target value for a specific metric (like 50% CPU). It functions similarly to a thermostat maintaining a room's temperature.
Common mistakes
Choosing predictive scaling when traffic is explicitly stated as unpredictable.
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