Exam AWS Certified Solutions Architect - Professional topic 1 question 287 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional

Question #: 287
Topic #: 1

[All AWS Certified Solutions Architect - Professional Questions]

You have setup an Auto Scaling group. The cool down period for the Auto Scaling group is 7 minutes. The first scaling activity request for the Auto Scaling group is to launch two instances. It receives the activity question at time "t", and the first instance is launched at t+3 minutes, while the second instance is launched at t
+4 minutes.
How many minutes after time "t" will Auto Scaling accept another scaling activity request?

A. 11 minutes
B. 10 minutes
C. 7 minutes
D. 14 minutes

Show Suggested Answer

Suggested Answer: A 🗳️
If an Auto Scaling group is launching more than one instance, the cool down period for each instance starts after that instance is launched. The group remains locked until the last instance that was launched has completed its cool down period. In this case the cool down period for the first instance starts after 3 minutes and finishes at the 10th minute (3+7 cool down), while for the second instance it starts at the 4th minute and finishes at the 11th minute (4+7 cool down). Thus, the
Auto Scaling group will receive another request only after 11 minutes.
Reference:
http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/AS_Concepts.html

by zpei at April 28, 2020, 1:57 p.m.

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karthisena

Highly Voted 3 years, 7 months ago

Explanation: If an Auto Scaling group is launching more than one instance, the cool down period for each instance starts after that instance is launched. The group remains locked until the last instance that was launched has completed its cool down period. In this case the cool down period for the first instance starts after 3 minutes and finishes at the 10th minute (3+7 cool down), while for the second instance it starts at the 4th minute and finishes at the 11th minute (4+7 cool down). Thus, the Auto Scaling group will receive another request only after 11 minutes.

upvoted 9 times

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