Note: The question is included in a number of questions that depicts the identical set-up. However, every question has a distinctive result. Establish if the solution satisfies the requirements.
Your company's developers intend to deploy a large number of custom virtual machines on a weekly basis. They will also be removing these virtual machines during the same week it was deployed. Sixty percent of the virtual machines have Windows Server 2016 installed, while the other forty percent has Ubuntu Linux installed.
You are required to make sure that the administrative effort, needed for this process, is reduced by employing a suitable Azure service.
Solution: You recommend the use of Azure Reserved Virtual Machines (VM) Instances.
Does the solution meet the goal?
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A. B.B
The best answer for this scenario is D, one Azure firewall.
An Azure firewall is a managed network security service that helps protect your Azure virtual network resources. It allows you to create, enforce, and log application and network traffic policies across your subscriptions and virtual networks. With Azure Firewall, you can centrally create, enforce, and log application and network connectivity policies across subscriptions and virtual networks.
In this scenario, using one Azure firewall to limit the amount of inbound traffic to all the Azure virtual networks is the most efficient and cost-effective option. By using one Azure firewall, you can create and enforce traffic policies for all the virtual networks simultaneously. This eliminates the need to configure traffic policies separately for each virtual network, which can be time-consuming and prone to errors.
Option A, one application security group (ASG), is not the best answer because an ASG is used to group virtual machines that have the same security requirements. It doesn't help limit the amount of inbound traffic to virtual networks.
Option B, 10 virtual network gateways, is not the best answer because a virtual network gateway is used to establish a secure connection between your on-premises network and your Azure virtual network. It doesn't help limit the amount of inbound traffic to virtual networks.
Option C, 10 Azure ExpressRoute circuits, is not the best answer because Azure ExpressRoute is a service that enables you to create private connections between Azure datacenters and infrastructure that's on your premises or in a colocation environment. It doesn't help limit the amount of inbound traffic to virtual networks.
Therefore, the best answer for this scenario is D, one Azure firewall.
The proposed solution of using Azure Reserved Virtual Machine Instances could meet the goal of reducing administrative effort for deploying and removing custom virtual machines on a weekly basis.
Azure Reserved Virtual Machine Instances are a cost-saving option for purchasing and deploying virtual machines in Azure. With Reserved VM Instances, customers can pre-pay for one-year or three-year virtual machine reservations in advance, which provides significant discounts compared to the pay-as-you-go pricing model. This means that the cost of deploying and removing custom virtual machines on a weekly basis will be reduced, and the administrative effort required to manage billing will also be reduced.
Additionally, Reserved VM Instances can be easily deployed through Azure's portal, CLI, or APIs, which could also help to streamline the deployment process for the developers.
It is important to note, however, that Reserved VM Instances are not tied to specific virtual machines. Instead, they are tied to the configuration of the virtual machine, such as the number of cores and the amount of memory. This means that if the developers need to change the configuration of the virtual machines, they may need to purchase new Reserved VM Instances.
Overall, the proposed solution of using Azure Reserved Virtual Machine Instances could be a suitable option for reducing administrative effort and cost for deploying and removing custom virtual machines on a weekly basis.