AZ-900 Practice Test
For full authentication, which of the following might require both a password and a security question?
Correct answer: Multi-Factor Authentication
Multi-Factor Authentication (MFA) can require two or more elements for full authentication.
When you try to create several managed Microsoft SQL Server instances in an Azure environment, you get a notice telling you that your Azure subscription limitations need to be increased.
What should you do to increase the limits?
Correct answer: Create a new support request
Many Azure resource have quote limits. The purpose of the quota limits is to help you control your Azure costs. However, it is common to require an increase to the default quota.
You can request a quota limit increase by opening a support request. In the support request, select ג€˜Service and subscription limits (quotas)ג€™ for the Issue type, select your subscription and the service you want to increase the quota for. For this question, you would select ג€˜SQL Database Managed Instanceג€™ as the quote type.
In Azure, a platform as a service (PaaS) solution that hosts web apps gives you complete control over the operating systems that host applications. Is the statement correct?
Correct answer: 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.
_________ refers to a system's capacity to scale dynamically.
Correct answer: Elasticity
When the system is elastic that means it can adjust its processing power to match the demand. This happens only when the system is able to allocate and deallocate resources dynamically.
By changing the pricing tier, a Platform as a Service (PaaS) solution that runs web apps in Azure can be provided additional memory. Is the statement correct or incorrect?
Correct answer: Yes
The above statement is true.
What are two of the public cloud's characteristics?
Please select 2 correct answers
Correct answer: metered pricing & Self-service management
With the public cloud, you get pay-as-you—go pricing - you pay only for what you use, no CapEx costs. With the public cloud, you have self-service management. You are responsible for the deployment and configuration of the cloud resources such as virtual machines or web sites. The underlying hardware that hosts the cloud resources is managed by the cloud provider.
Which of the following allows you to give users only the permissions they require to do their jobs?
Correct answer: Role-Based Access Control
Role-Based Access (RBAC) lets you grant users only the rights they need to perform their jobs.
Multiple account administrators can be found in each Azure subscription. Is the statement correct?
Correct answer: No
You can assign service administrators and co-administrators in the Azure Portal but there can only be one account administrator.
Azure allows us greater flexibility between capital investment (CapEx) and operational expense (OpEx). Is this statement accurate?
Correct answer: Yes
Traditionally, IT expenses have been considered a Capital Expenditure (CapEx). Today, with the move to the cloud and the pay-as-you-go model, organizations have the ability to stretch their budgets and are shifting their IT CapEx costs to Operating Expenditures (OpEx) instead. This flexibility, in accounting terms, is now an option due to the ג€as a Serviceג€ model of purchasing software, cloud storage and other IT related resources.
__________ refers to a system's ability to run continuously for long periods of time without any interruption.
Correct answer: High Availability
Availability talks about system uptime. so when the system is available to usersiother applications. High Availability simply means that system is designed to run for a very long period of time.
Your company intends to move all of its data and resources to Azure.
Only Platform as a Service (PaaS) solutions are allowed on Azure, according to the company's migration plan.
You must set up an Azure environment that complies with the company's migration strategy.
Solution: Azure virtual machines, Azure SQL databases, and Azure Storage accounts are all created by you.
Is this performing the task?
Correct answer: No
Platform as a service (PaaS) is a complete development and deployment environment in the cloud. PaaS includes infrastructure ג€"" servers, storage, and networking ג€"" but also middleware, development tools, business intelligence (BI) services, database management systems, and more. PaaS is designed to support the complete web application lifecycle: building, testing, deploying, managing, and updating.
However, virtual machines are examples of Infrastructure as a service (IaaS). IaaS is an instant computing infrastructure, provisioned and managed over the internet.
You are in charge of _________ when implementing a Software as a Service (SaaS) solution.
Correct answer: configuring the SaaS solution.
When you are implementing a Software as a Service (SaaS) solution, you are responsible for configuring the SaaS solution. Everything else is managed by the cloud provider.
SaaS requires the least amount of management. The cloud provider is responsible for managing everything, and the end user just uses the software.
Software as a service (SaaS) allows users to connect to and use cloud-based apps over the Internet.
Which of the following defines performance targets for an Azure product or service, such as uptime?
Correct answer: Service Level Agreements
Service Level Agreements. The SLA defines performance targets for an Azure product or service.
Only a Microsoft account can be used to administer each Azure subscription. Is the statement correct?
Correct answer: No
You need an Azure Active Directory account to manage a subscription, not a Microsoft account.
An account is created in the Azure Active Directory when you create the subscription. Further accounts can be created in the Azure Active Directory to manage the subscription.
You continue to pay storage expenses associated with an Azure virtual machine even if it is stopped. Is the statement correct?
Correct answer: Yes
When an Azure virtual machine is stopped, you donג€™t pay for the virtual machine. However, you do still pay for the storage costs associated to the virtual machine.
The most common storage costs are for the disks attached to the virtual machines. There are also other storage costs associated with a virtual machine such as storage for diagnostic data and virtual machine backups.
As the company , they will be able to _____ the price per unit for its clients. The principle of economies of scale is what it's called.
Correct answer: grows, decrease
When companies grow in size. they become more effective at what they do. Thanks to this they can reduce their operational costs and therefore decrease their price per unit
Your organization intends to use Azure to host many custom applications. The applications will give the company's clients with invoicing services. Several required programs and services will be installed for each application.
For all of the applications, you must recommend a cloud deployment solution.
What would you suggest?
Correct answer: Infrastructure as a Service (laaS)
Infrastructure as a service (IaaS) is an instant computing infrastructure, provisioned and managed over the internet. The IaaS service provider manages the infrastructure, while you purchase, install, configure, and manage your own software
You have numerous servers on your on-premises network.
You intend to move all of your servers to Azure.
You must propose a strategy to ensure that some servers are available if a single Azure data center is offline for an extended period of time.
What should your recommendation include?
Correct answer: fault tolerance
Fault tolerance is the ability of a system to continue to function in the event of a failure of some of its components.
In this question, you could have servers that are replicated across datacenters.
Availability zones expand the level of control you have to maintain the availability of the applications and data on your YMs. Availability Zones are unique physical locations within an Azure region. Each zone is made Lip of one or more datacenters equipped with independent power, cooling, and networking. To ensure resiliency, there are a minimum of three separate zones in all enabled regions. The physical separation of Availability Zones within a region protects applications and data from datacenter failures.
With Availability Zones, Azure offers industry best 99.99% UM uptime SLA. By architecting your solutions to use replicated ‘v’Ms in zones, you can protect your applications and data from the loss of a datacenter. If one zone is compromised, then replicated apps and data are instantly available in another zone.
Which of the following provides an opportunity for all Azure customers to try out the beta and other pre-release features?
Correct answer: Public Preview
Public Preview means that an Azure feature is available to all Azure customers for evaluation purposes.
Availability zones are available in every Azure region. Is the statement correct?
Correct answer: No
Not all Azure regions support availability zones.
A data center is no longer necessary for an organization that hosts its infrastructure ________.
Correct answer: 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.
Due to their small size, small businesses frequently have a _____ pricing per unit.
Correct answer: high
Bigger companies can build internal teams. share resources. invest in research, negotiate prices. etc. All this leads to a lower price per unit. Unfortunately. small companies can't do that which leads to a high unit per price.
Operational expenditure (OpEx) costs include things like building a data center infrastructure. Is the statement correct?
Correct answer: No
Building a data center infrastructure is capital expenditure, not operation expenditure.
You're using IaaS to run a virtual machine in a public cloud. Which model is the most accurate representation of how that resource is managed?
Correct answer: Shared responsibility model
Shared responsibility model is the correct answer. Under the shared responsibility model, management of the resource is shared between the cloud provider and the end-user. The cloud provider is responsible for the cloud services infrastructure and the end-user is responsible for the service being configured and managed correctly.
In availability zones, only virtual machines running Windows Server can be established. Is the statement correct?
Correct answer: No
Availability zones can be used with many Azure services, not just VMs.