AWS DevOps Engineer Professional DOP-C01 – Question398

What is the order of most-to-least rapidly-scaling (fastest to scale first)?


A. B, A, C
B. C, B, A
C. C, A, B
D. A, C, B

Correct Answer: A

Explanation:

Explanation:
Lambda is designed to scale instantly. EC2 + ELB + Auto Scaling require single-digit minutes to scale out.
RDS will take at least 15 minutes, and will apply OS patches or any other updates when applied.
Reference:
https://aws.amazon.com/lambda/faqs/