Exam AZ-303 topic 1 question 53 discussion

The correct answer is C & D https://docs.microsoft.com/en-us/azure/virtual-machines/windows/managed-disks-overview "Using managed disks, you can create up to 50,000 VM disks of a type in a subscription per region, allowing you to create thousands of VMs in a single subscription. This feature also further increases the scalability of virtual machine scale sets by allowing you to create up to 1,000 VMs in a virtual machine scale set using a Marketplace image."

What makes a large scale set special is not the number of VMs, but the number of placement groups it contains. A placement group is a construct similar to an Azure availability set, with its own fault domains and upgrade domains. By default, a scale set consists of a single placement group with a maximum size of 100 VMs. If a scale set property called singlePlacementGroup is set to false, the scale set can be composed of multiple placement groups and has a range of 0-1,000 VMs. When set to the default value of true, a scale set is composed of a single placement group, and has a range of 0-100 VMs. Large scale sets require Azure Managed Disks. Scale sets that are not created with Managed Disks require multiple storage accounts (one for every 20 VMs). Large scale sets are designed to work exclusively with Managed Disks to reduce your storage management overhead, and to avoid the risk of running into subscription limits for storage accounts.

Scale sets that are not created with Managed Disks require multiple storage accounts (one for every 20 VMs). Large scale sets are designed to work exclusively with Managed Disks to reduce your storage management overhead, and to avoid the risk of running into subscription limits for storage accounts.

In the exam on 12-03-2022. Total 50 questions including case study. "Litware Acquired Fabricam" case study.

Answer is C&D

On exam today 19/11/21. Correct answer. Score 860.

single storage account - Storage account is not required to setup Azure VM Scale sets. single placement group - Placement groups are used to decrease the inter-VM network latency associated with your applications. This is not a requirement in this scenario. C and D are the answers

On Exam 27/08/2021

Came in Exam 11-June-21, answers are correct.

answer based on provide url is correct. https://docs.microsoft.com/en-us/azure/virtual-machines/windows/managed-disks-overview

C&D are the right options. A (Placement group) can't be used here as a single placement group can't have more than 100 VMs. Please read the document - https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-placement-groups if the number of VMs to be created were less than 100 then placement groups could have been one of the correct options.

why managed disk and not storage account?¿ Thx,

given answers are correct as we need Minimum maintenance , reduce latency and 500 instances which is not provided by other options By default, a scale set consists of a single placement group with a maximum size of 100 VMs. If a scale set property called singlePlacementGroup is set to false, the scale set can be composed of multiple placement groups and has a range of 0-1,000 VMs. https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-placement-groups#placement-groups

Should it be A & D. Placement Group is mentioned when create large cluster of more than 100 nodes - https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-placement-groups

B and D are correct

given answers are correct.

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