AZ-900: Microsoft Azure Fundamentals
You have 50 virtual machines hosted on-premises and 50 virtual machines hosted in Azure. The on-premises virtual machines and the Azure virtual machines connect to each other.
Which type of cloud model is this?
hybrid
private
public
Answer is hybrid
References:
https://azure.microsoft.com/en-gb/overview/what-is-hybrid-cloud-computing/
To complete the sentence, select the appropriate option in the answer area.
Azure Cosmos DB is an example of a platform as a service (PaaS) cloud database provider.
Reference:
https://docs.microsoft.com/en-us/azure/cosmos-db/database-security
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Reference:
https://azure.microsoft.com/en-us/overview/what-is-saas/
https://azure.microsoft.com/en-us/overview/what-is-iaas/
https://azure.microsoft.com/en-us/overview/what-is-paas/
To complete the sentence, select the appropriate option in the answer area.
Answer is in the public cloud
A private cloud is hosted in your datacenter. Therefore, you cannot close your datacenter if you are using a private cloud.
A public cloud is hosted externally, for example, in Microsoft Azure. An organization that hosts its infrastructure in a public cloud can close its data center.
Public cloud is the most common deployment model. In this case, you have no local hardware to manage or keep up-to-date ג€" everything runs on your cloud provider's hardware.
Microsoft Azure is an example of a public cloud provider.
In a private cloud, you create a cloud environment in your own datacenter and provide self-service access to compute resources to users in your organization.
This offers a simulation of a public cloud to your users, but you remain completely responsible for the purchase and maintenance of the hardware and software services you provide.
Reference:
https://docs.microsoft.com/en-gb/learn/modules/principles-cloud-computing/4-cloud-deployment-models
What does a customer provide in a software as a service (SaaS) model?
application data
data storage
compute resources
application software
Answer is application data
SaaS provides a complete software solution which you purchase on a pay-as-you-go basis from a cloud service provider. You rent the use of an app for your organization and your users connect to it over the Internet, usually with a web browser. All of the underlying infrastructure, middleware, app software and app data are located in the service providerג€™s data center. The service provider manages the hardware and software and with the appropriate service agreement, will ensure the availability and the security of the app and your data as well.
Reference:
https://azure.microsoft.com/en-in/overview/what-is-saas/
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
No-No-No
No-No-Yes
No-Yes-No
No-Yes-Yes
Yes-No-No
Yes-No-Yes
Yes-Yes-No
Yes-Yes-Yes
Answer is No-Yes-Yes
Box 1: No
A PaaS solution does not provide access to the operating system. The Azure Web Apps service provides an environment for you to host your web applications.
Behind the scenes, the web apps are hosted on virtual machines running IIS. However, you have no direct access to the virtual machine, the operating system or IIS.
Box 2: Yes
A PaaS solution that hosts web apps in Azure does provide the ability to scale the platform automatically. This is known as autoscaling. Behind the scenes, the web apps are hosted on virtual machines running IIS. Autoscaling means adding more load balanced virtual machines to host the web apps.
Box 3: Yes
PaaS provides a framework that developers can build upon to develop or customize cloud-based applications. PaaS development tools can cut the time it takes to code new apps with pre-coded application components built into the platform, such as workflow, directory services, security features, search and so on.
References:
https://azure.microsoft.com/en-gb/overview/what-is-paas/
You have an Azure environment that contains 10 virtual networks and 100 virtual machines.
You need to limit the amount of inbound traffic to all the Azure virtual networks.
What should you create?
One network security group (NSG)
10 virtual network gateways
10 Azure Express Route circuits
One Azure firewall
Answer is One Azure firewall.
Your company plans to deploy an Artificial Intelligence (AI) solution in Azure.
What should the company use to build, test, and deploy predictive analytics solutions?
Azure Logic Apps
Azure Machine Learning Studio
Azure Batch
Azure Cosmos DB
Answer is Azure Machine Learning Studio.
Which Azure service should you use to correlate events from multiple resources into a centralized repository?
Azure Event Hubs
Azure Analysis Services
Azure Monitor
Azure Log Analytics
Answer is Azure Log Analytics
Correlate events=Azure Log Analytics
Collect events= Azure Event Hubs
An Azure administrator plans to run a PowerShell script that creates Azure resources. You need to recommend which computer configuration to use to run the script.
Solution: Run the script from a computer that runs macOS and has PowerShell Core 6.0 installed.
Does this meet the goal?
Yes
No
Answer is No
You cannot create Azure resources without the Azure PowerShell module. To run PowerShell scripts you only need PowerShell Core 6.0 installed, BUT the question also requests to create Azure resources. In order to accomplish that, you need the Azure PowerShell module which does not come with PowerShell Core 6.0. In fact, you must install it apart using the Install-Module cmdlet.
Reference:
https://learn.microsoft.com/en-us/powershell/azure/install-az-ps?view=azps-9.2.0#installation
https://learn.microsoft.com/en-us/answers/questions/1016820/can-we-run-powershell-script-from-a-computer-that