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Exam AZ-104 topic 4 question 51 discussion

Actual exam question from Microsoft's AZ-104

Question #: 51
Topic #: 4

You have an Azure subscription that contains an Azure virtual machine named VM1. VM1 runs a financial reporting app named App1 that does not support multiple active instances.
At the end of each month, CPU usage for VM1 peaks when App1 runs.
You need to create a scheduled runbook to increase the processor performance of VM1 at the end of each month.
What task should you include in the runbook?

A. Add the Azure Performance Diagnostics agent to VM1.
B. Modify the VM size property of VM1.
C. Add VM1 to a scale set.
D. Increase the vCPU quota for the subscription.
E. Add a Desired State Configuration (DSC) extension to VM1.

Show Suggested Answer

Suggested Answer: B 🗳️

by fedztedz at Dec. 1, 2020, 3:50 p.m.

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mlantonis

Highly Voted 4 years, 1 month ago

Correct Answer: B Here we need to modify the size of the VM to increase the number of vCPU's assigned to the VM. This can be included as a task in the runbook. The VM size property can be modified by a runbook that is triggered by metrics, but you can schedule it monthly. C: Scheduled vertical scaling could be a solution, but then you don't need a scheduled runbook and it states that it does not support multiple active instances. Scale Set is not a n option. E: DSC is only useful to keep the resources on a VM (OS, File shares, etc.) in a consistent state, not to change VM properties. Reference: https://www.apress.com/us/blog/all-blog-posts/scale-up-azure-vms/15823864#:~:text=If%20you%20select%20the%20option,to%20the%20next%20larger%20size

upvoted 211 times

klasbeatz

3 years ago

They only part that confuses me is that I didn't think size was a determining factor when increasing processor capacity / power? Unless this is a different when referring to VM's? I figure the two are un-related

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GenjamBhai

3 years ago

Agreed. Correct Answer: B Refer to https://www.youtube.com/watch?v=pQ9dQ13B2vM

upvoted 4 times

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Holydud

2 years, 10 months ago

Was on exam 19 Aug 2022. Scored 870. Around 85% questions were also on ET. Answered B

upvoted 19 times

Theguy97

2 years, 5 months ago

Your comments have no value , you comment on every question and we don't know which one will be on exam or not, please careful you affect other people

upvoted 12 times

Durden871

2 years, 3 months ago

I appreciate knowing if a question has been literally on the exam recently.

upvoted 7 times

garmatey

2 years, 2 months ago

There just isnt a reason to assume a question isnt on the test unless people are saying it isnt...

upvoted 2 times

Batiste2023

1 year, 8 months ago

Well, do you want people to comment about each particular question that has NOT been on their exam? I... don't.

upvoted 1 times

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AK4U_111

2 years, 4 months ago

ET moderators modify comments on a regular basis

upvoted 2 times

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93d821b

1 year, 7 months ago

I"m glad when people do this, because all 570 questions aren't on the exam. Its good to have a date when it was last on there.

upvoted 4 times

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fedztedz

Highly Voted 4 years, 7 months ago

not correct. Answer is B. Scale up the VM using Automation virtual scale set runbooks which trigger a webhook

upvoted 106 times

ScreamingHand

4 years ago

why not create a scale set and scale up?

upvoted 1 times

T____T

4 years ago

the question asks about runbook specifically so you have to go with that context

upvoted 9 times

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biglebowski

4 years ago

Do you think it's a good job to be executed in runbook every month?

upvoted 1 times

T____T

4 years ago

you can scale up or down via the run book check the portal.

upvoted 1 times

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Sunny11

3 years, 9 months ago

The question says multiple active instances are not supported

upvoted 13 times

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Load full discussion...

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alex88andru

3 years, 6 months ago

I don t get it, B. Modify the VM size property of VM1. How is this a runbook? or any relation to your B answer? Thanks

upvoted 5 times

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58b2872

Most Recent 5 months, 2 weeks ago

Selected Answer: B

Bcz it does not support multiple active instances.

upvoted 1 times

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Josh219

10 months, 3 weeks ago

Why not add vm1 to scale set because scale sets are designed for applications that can run multiple instances simultaneously, allowing for automatic scaling based on demand. However, your financial reporting app (App1) does not support multiple active instances. Therefore, adding VM1 to a scale set would not be effective in this case. Why not DSC, Because DSC is useful for maintaining consistent configurations, it does not directly address the need to increase processor performance during peak usage periods.

upvoted 2 times

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Ni22

1 year ago

6/13/24 on exam

upvoted 3 times

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tashakori

1 year, 3 months ago

B is right

upvoted 1 times

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devops_devops

1 year, 5 months ago

This question was in exam 15/01/24

upvoted 4 times

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SgtDumitru

1 year, 7 months ago

Desired State Configuration (DSC) extension can be used to configure and manage the desired state of a virtual machine (VM) in Azure. DSC allows you to define the configuration of a machine in a declarative way, and it can be used to automate tasks such as adjusting the processor performance.

upvoted 1 times

SgtDumitru

1 year, 7 months ago

Nevermind. B is corrent, since it's asking a TASK for scheduled runbook, not a separate solution for the VM.

upvoted 1 times

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rex3

1 year, 8 months ago

Selected Answer: B

Answer B

upvoted 2 times

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Savi27

1 year, 11 months ago

Correct Answer: C

upvoted 1 times

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[Removed]

2 years ago

Selected Answer: C

Correct answer: C Azure Virtual Machine Scale Sets let you create and manage a group of load balanced VMs. The number of VM instances can automatically increase or decrease in response to demand or a defined schedule. Scale sets provide the following key benefits: https://learn.microsoft.com/en-us/azure/virtual-machine-scale-sets/overview

upvoted 1 times

kennie0

1 year, 9 months ago

Question says VM does not support multiple active instances. so scale set is ruled out

upvoted 1 times

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Tomix

2 years ago

B. Modify the VM size property of VM1. By modifying the VM size, you can choose a higher-tier virtual machine that offers more CPU resources, which can help handle the increased CPU usage during peak times. This allows you to scale up the VM's processing power temporarily to meet the demands of the financial reporting app (App1) at the end of each month.

upvoted 1 times

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ZhuBajie5953

2 years, 4 months ago

i think the question is asking after you change the VM size.....how do you ensure after reboot, all the service are running. Hence, DSC come into the picture.

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