Exam CV0-003 All QuestionsBrowse all questions from this exam
Go to Exam
Question 173

A systems administrator is troubleshooting an application that is configured to auto-scale with a minimum of two nodes and a maximum of four. The application will scale out if the CPU utilization of one of the nodes exceeds 80% for more than five minutes and will scale in if the CPU utilization of one of the nodes drops under

20% for more than ten minutes. There is a reverse proxy in front of the application. The systems administrator notices two of the nodes are often running over 80% for a long period of time, which is triggering the creation of the other two nodes; however, they are being created and terminated while the load in the first two remains over 50% all the time. Which of the following should the administrator configure to fix this issue?

    Correct Answer: E

    The issue described involves nodes frequently being scaled out and then terminated, despite high CPU utilization on the initial nodes. This indicates that the scale-out rule is working correctly but the new nodes are being terminated too soon. By increasing the scale-in rule to 50%, nodes will only be terminated when their CPU utilization drops below 50%, ensuring that the new nodes remain active long enough to handle the load and balance the CPU utilization across all nodes.

Discussion
Pisces225

The problem being described is that the application is scaling out at 50% instead of the intended 80%. Zero of the solutions fixes this issue. Which is what you get when CompTIA outsources their questions and testing to India and literally no one reads what they come up with and put into the exams.

FrancisDrake

None of these answers seem to address the problem.

FasterN8Option: A

At first there seemed to be no right answer. But the given answer I think is right. If the reverse proxy isn't sending any traffic to the 2 new machines, they themselves trigger the 20% rule and trigger the scale-in action. Disabling DNS caching will force the Rev.proxy to constantly look for new VMs in the pool and finally send traffic their way.

lamborghini

It is sending traffic to the new 2 machines. "first two remains over 50% all the time". None of the solution truly fix the issue but I'm going with E

Jhonattan0032Option: E

I think is e

Jhonattan0032Option: E

increasing the scale-in rule to 50%, nodes will only be terminated when their CPU utilization drops below 50%

ROCompTIAOption: D

By reducing the scale-out rule to 50%, the auto-scaling system will only trigger the creation of new nodes when the CPU utilization exceeds 50%, instead of the current threshold of 80%. This adjustment will prevent unnecessary creation of new nodes when the load is still relatively high but below 80%

slcc99

Since it says "The systems administrator notices two of the nodes are often running over 80% for a long period of time", wouldn't reducing the scale-out rule to 50% solve the problem?