AZ-900 Exam Prep Flashcards
Microsoft Azure enables your organization to move IT expenditures to:
Capital expenditures
Operational expenditures
A controlled expense model
None of the above
B. Azure is a consumption-based cloud model in which you pay only for the services that you consume, enabling you to move from a CapEx model to an OpEx model. See Chapter 1 for more information.
Which of the following tools can you use to estimate the expense of moving a data center from on-premises to Azure?
Azure Pricing Calculator
Azure Cost Management + Billing
Azure TCO Calculator
Azure CLI
C. The TCO Calculator helps you consider the costs of facilities, power, and related expenses associated with moving services hosted in a data center to Azure.
The term agility in Microsoft Azure refers to:
The ease with which you can move workloads from on-premises to Azure and back again
The ability to quickly adjust resources such as memory to adapt to changes in demand
The ability to add more front-end web servers to a web application to adapt to increased demand
The ability to quickly create redundancy in a solution
B. Agility refers to the ability to adjust resources to meet changes in demand. See Chapter 1 for more information.
Which of the following describes the benefit economy of scale as it relates to Microsoft Azure?
The capability to distribute resources across multiple regions to reduce cost
The ability to place resources in less expensive Azure regions to reduce costs
The capability to automatically scale down the number of virtual machines in an Azure solution to reduce costs when demand decreases
The decrease in price per subscriber as more subscribers are added
D. As the number of subscribers increases, the cost to provide a service to those subscribers goes down because the cost is spread across more users, providing an economy of scale. See Chapter 1 for more information.
Which of the following in an example of vertical scaling?
Adding VMs to a web app as demand increases
Reducing memory allocated to VMs when demand decreases
Adding CPU cores to a VM when demand increases
Both B and C
D. Vertical scaling refers to adding or removing resources such as CPU cores or memory as demand changes. See Chapter 2 for more information.
A service that provides the capability to deploy a SQL database without the need for you to set up a VM or install SQL Server is an example of:
Infrastructure-as-a-service (IaaS)
Software-as-a-service (SaaS)
Platform-as-a-service (PaaS)
Data-as-a-service (DaaS)
C. This is an example of PaaS. See Chapter 1 for more information.
Accessing an application through a web page rather than installing the application on your local device is an example of:
Infrastructure-as-a-service (IaaS)
Software-as-a-service (SaaS)
Platform-as-a-service (PaaS)
Data-as-a-service (DaaS)
B. This is an example of SaaS. See Chapter 1 for more information.
Deploying virtual machines (VMs) in a shared cloud environment is an example of:
Infrastructure-as-a-service (IaaS)
Software-as-a-service (SaaS)
Platform-as-a-service (PaaS)
Data-as-a-service (DaaS)
A. This is an example of IaaS. See Chapter 1 for more information.
Which of the following accurately describes an Azure geography?
It corresponds to a single country or to a market encompassing multiple countries.
It always corresponds to a specific country.
It represents a set of physical data centers.
None of the above.
A. An Azure geography can align to a single country or to a market that encompasses multiple countries, such as Europe. See Chapter 2 for more information.
An Azure region:
Describes a specific Azure data center
Is usually paired with another region to ensure high availability
Can span across multiple countries
Encompasses the data centers in which all of your Azure resources reside
B. Regions are usually paired with other regions in Azure to help ensure high availability. See Chapter 2 for more information.
Azure China is a physically isolated instance of Azure available only to Chinese government entities.
Yes
No
B. Azure China is a physically isolated instance of Azure, but it is available to business as well as governmental organizations within China. See Chapter 4 for more information.
You are deploying three VMs in a single region as web front ends to a web application. You need to ensure that power outages or other potential data center outages do not make your web application unavailable. Which of the following achieves this goal?
You place the VMs in an availability set.
You place the VMs in separate resource groups.
You place the VMs in different availability zones.
You deploy additional VMs to other regions.
C. Distributing VMs across availability zones helps guard against data center outages. See Chapter 2 for more information.
What is the function of a resource group in Azure?
It provides automatic scaling of CPU cores, memory, and other resources for VMs.
It enables you to establish a higher SLA for VMs.
It protects resources from being deleted.
It serves as a logical container for Azure resources.
D. Resources groups serve as a logical container for Azure resources. See Chapter 2 for more information.
Is the underlined portion of the following statement true, or does it need to be replaced with one of the other fragments that appear below?
Azure Resource Manager ENABLES YOU TO DEPLOY MULTIPLE RESOURCES USING JSON-BASED TEMPLATES
is the primary tool you use to manage resources in Azure.
is the blade in Azure portal that provides access to resource management and monitoring tools, including management templates.
enables you to interactively allocate additional CPU cores and memory to VMs.
No change is needed.
D. The underlined fragment is correct. See Chapter 2 for more information.
Which of the following statements is not true regarding Azure subscriptions?
A subscription is aligned to a specific Azure region.
You can move resources from one subscription to another.
Subscriptions can help simplify Azure billing and cost management.
You can move a subscription to a new Azure AD tenant.
A. Subscriptions are just logical containers and therefore are not limited to a single region. See Chapter 2 for more information.
