Exam AZ-104 topic 4 question 8 discussion

Correct Answer: Box 1: 6 virtual machines The Autoscale scale out rule increases the number of VMs by 2 if the CPU threshold is 80% or higher. The initial instance count is 4 and rises to 6 when the 2 extra instances of VMs are added. Box 2: 2 virtual machnes The Autoscale scale in rule decreases the number of VMs by 4 if the CPU threshold is 30% or lower. The initial instance count is 4 and thus cannot be reduced to 0 as the minimum instances is set to 2. Instances are only added when the CPU threshold reaches 80%. Reference: https://docs.microsoft.com/en-us/azure/azure-monitor/platform/autoscale-overview https://docs.microsoft.com/en-us/azure/azure-monitor/platform/autoscale-best-practices https://docs.microsoft.com/en-us/azure/azure-monitor/platform/autoscale-common-scale-patterns

Scale-out to 6 is correct. Scale-in to 2 is also correct: Starting with 4VMs. Usage (25%) is below threshold, so scale-in happens to the min. of 2 machines. (Calculate: If 4 VMs have 25%, then 2 VMs will have 50%; this does not trigger the Scale-out, so scale in will be done!) Then for the next time it stays at 50%, so no changes are made an the set still consists 2 VMs

This question was on exam dated-23 Jan 2025. Box 1: 6 virtual machines Box 2: 2 virtual machnes

Final Answer : 6, 2

This is just math at this point💀

6 and 2

This question was in my exam on 31/08/2023.

1) 6 virtual machines 2) 2 virtual machines Passed the exam on 26 July 2023. Scored 870. Similar question came.

I used free version access for this site and it helped me pass the exam. Some questions that I had on the exams, I took the exam more than once, are not available under the free tier access, but 80% of the questions came from here. I do recommend investing a bit of money and getting full access to this site. I didn't memorise answers but analysed them and studied as Microsoft does tweak them a bit. This Q was on the exam.

Simular question was on todays exam. (7th April 2023)

1. 6 (inital 4 + scale out 2) 2. 2 (min 2)

in the 09/01.2023 exam. I chose the given answers

Was on my 2nd test

Today 11/01/2022 in exam but with different values and questions criteria.

it's simple - look at your scale-in and scale-out policies. We have 4 instances (created with the VMSS). If the CPU threshold is hight than 80% and 6 minutes (exceeded the policy) we will have 4 + 2 added instances (=6 instances in total) The same for the scaling-out policy. We have now 6 VMs and the CPU is running lower than the threshold, so we will decrease by 4 which is 2 VMs in total.

1) 6 2) 2 mlantonis answer goes into further detail.

Correct Answer: Box 1: 6 virtual machines The Autoscale scale out rule increases the number of VMs by 2 if the CPU threshold is 80% or higher. The initial instance count is 4 and rises to 6 when the 2 extra instances of VMs are added. Box 2: 2 virtual machnes The Autoscale scale in rule decreases the number of VMs by 4 if the CPU threshold is 30% or lower. The initial instance count is 4 and thus cannot be reduced to 0 as the minimum instances is set to 2. Instances are only added when the CPU threshold reaches 80%.