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Exam AZ-303 topic 1 question 45 discussion

Actual exam question from Microsoft's AZ-303
Question #: 45
Topic #: 1
[All AZ-303 Questions]

DRAG DROP -
You have virtual machines (VMs) that run a mission-critical application.
You need to ensure that the VMs never experience down time.
What should you recommend? To answer, drag the appropriate solutions to the correct scenarios. Each solution may be used once, more than once, or not at all.
You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point
Select and Place:

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Suggested Answer:
Box 1: Scale set -
A virtual machine scale set allows you to deploy and manage a set of identical, autoscaling virtual machines.

Box 2: Availability Set -
An Availability Set is a logical grouping capability for isolating VM resources from each other when they're deployed. Azure makes sure that the VMs you place within an Availability Set run across multiple physical servers, compute racks, storage units, and network switches. If a hardware or software failure happens, only a subset of your VMs are impacted and your overall solution stays operational. Availability Sets are essential for building reliable cloud solutions.

Box 3: Fault domain -
A fault domain is a logical group of underlying hardware that share a common power source and network switch, similar to a rack within an on-premises datacenter. As you create VMs within an availability set, the Azure platform automatically distributes your VMs across these fault domains. This approach limits the impact of potential physical hardware failures, network outages, or power interruptions.
Incorrect Answers:
An update domain is a group of VMs and underlying physical hardware that can be rebooted at the same time.
Reference:
https://docs.microsoft.com/en-us/azure/virtual-machines/windows/tutorial-create-vmss https://docs.microsoft.com/en-us/azure/virtual-machines/windows/tutorial-availability-sets
by Deepbond at Jan. 2, 2021, 6:11 a.m.

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Deepbond
Highly Voted 4 years, 4 months ago
Correct Answer is Scale sets, Availability Zone and Availability Sets Scale Sets - identical VMs in auto scaling Availability Zone - when an data center fails. Availability sets are for when underlying physical server or power supply fails within a data center. Availability Sets - Fault Domain is not a solution but a feature within availability set incase of planned maintenance like server patching.
upvoted 275 times
rdemontis
3 years, 10 months ago
I totally agree with you!!
upvoted 3 times
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varunthakur84
4 years, 3 months ago
This is correct
upvoted 1 times
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azurecert2021
4 years, 3 months ago
this is correct justification for each option.
upvoted 1 times
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badetoro234
4 years, 3 months ago
https://docs.microsoft.com/en-us/azure/virtual-machines/manage-availability
upvoted 3 times
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jasu
Highly Voted 4 years, 4 months ago
Scale Set, Availability Zone and Availability Set. There is no option in Azure for defining Fault Domain during VM creation.
upvoted 16 times
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rxlicon
Most Recent 1 year, 8 months ago
Scale sets Availability Zone Availability Sets -> Question is about performance. Fault domains are for availability not performance.
upvoted 1 times
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hikpd
3 years, 1 month ago
Moderator, I hope you can correct the answers to Scale Set, Availability Zone, and Availability Set. There is no option in Azure for defining Fault Domain during VM creation.
upvoted 1 times
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hikpd
3 years, 1 month ago
Moderator, please correct the answers.
upvoted 1 times
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azahran
3 years, 1 month ago
Scale sets Availability Zone Availability Sets
upvoted 2 times
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ranjitklive
3 years, 1 month ago
Identical VMs --> Scale sets (uses load balancer to scale up or down) Data Center failure --> Availability Zone Availability Set (uses Update Domain and Fault Domain to ensure high availability/reliability) - To isolate VMs from each other when they are deployed
upvoted 2 times
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nd78
3 years, 3 months ago
on Exam today 21st Jan, 2022
upvoted 1 times
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LANOPS72
3 years, 3 months ago
The correct answer with the available choices is scale set, scale set, scale set
upvoted 1 times
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Nands23
3 years, 4 months ago
This was on today's exam. 12/29/2021 only two question in the subset. Right answer
upvoted 1 times
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ritgllfjljaeargril
3 years, 4 months ago
Scale sets Availability Zone Availability Sets
upvoted 1 times
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AberdeenAngus
3 years, 5 months ago
The Q says that each solution can be used more than once, and I'm going Scale set (in Uniform orchestration mode), Availability zone, Scale set (in Flexible orchestration mode). The latter works on normal VMs which can be different spec https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-orchestration-modes. Fault domains are for availability not performance.
upvoted 1 times
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syu31svc
3 years, 8 months ago
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 high availability to your applications, and allow you to centrally manage, configure, and update a large number of VMs. With virtual machine scale sets, you can build large-scale services for areas such as compute, big data, and container workloads. https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/overview An Availability Zone is a high-availability offering that protects your applications and data from datacenter failures. An Availability Set is a logical grouping capability for isolating VM resources from each other when they're deployed Answer is Scale sets Availability Zone Availability Sets
upvoted 4 times
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kkstays
3 years, 8 months ago
9th Aug 21 - Was in today's exam. 54 Questions in total (4 Case study), No Lab
upvoted 2 times
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AdityaGupta
3 years, 9 months ago
The answer should be 1. Scale Set, since it provisions identical VMs during auto-scaling. 2. Availability Zone, it will provision VMs across different availability zones within region. i.e. separate physical locations within region. 3. Availability Set, it give you flexibility to add VMs of different sizes in availability set at the time of VM provisioning.
upvoted 3 times
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Jee1
3 years, 10 months ago
Answer should be Scale Sets , Availability Zone and Availability Sets.
upvoted 3 times
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am110
3 years, 10 months ago
For 3rd Question seems confusing as performance is mentioned so not sure is it FaultDomain or AvailabilitySt as FaultDomain makes more sense. Anyone please comment what will be correct answer for 3rd Question FaultDomain or AvailabilitySet? Please advise. 1-ScaleSet 2.AvailabilityZone
upvoted 1 times
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