A company plans to use third-party application software to perform complex data analysis processes. The software will use up to 500 identical virtual machines
(VMs) based on an Azure Marketplace VM image.
You need to design the infrastructure for the third-party application server. The solution must meet the following requirements:
-> The number of VMs that are running at any given point in time must change when the user workload changes.
-> When a new version of the application is available in Azure Marketplace it must be deployed without causing application downtime.
-> Use VM scale sets.
-> Minimize the need for ongoing maintenance.
Which two technologies should you recommend? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
Click on the arrows to vote for the correct answer
A. B. C. D.BD
To meet the given requirements, the recommended technologies are:
B. Autoscale: Autoscale automatically adds or removes VMs to match the demand, thus meeting the requirement that the number of VMs running should change based on workload changes. Autoscale can be configured based on metrics such as CPU usage, memory usage, or custom metrics.
D. Managed Disks: Managed Disks simplify disk management by handling storage account management and storage service management. Managed Disks ensure high availability and durability of data disks, thus minimizing the need for ongoing maintenance. In addition, managed disks offer improved scalability and performance.
Explanation for why other options are incorrect:
A. Single Storage Account: A single storage account cannot meet the requirements of the scenario. Each VM should have its own storage account or managed disks for performance, scalability, and high availability.
C. Single Placement Group: Placement groups are used to deploy VMs in a way that optimizes the network latency and inter-VM network throughput. However, it does not meet the given requirements for the third-party application server infrastructure.
In summary, the recommended solution for the given scenario is to use VM scale sets, autoscale, and managed disks.