Microsoft AZ-900 Online Practice Questions and Exam Preparation

Microsoft AZ-900 Online Questions & Answers

• Question 381:

  HOTSPOT

  For each of the following statements, select Yes if the statement is true. Otherwise, select No.

  NOTE: Each correct selection is worth one point.

  

  

  Explanation:

  North america is represented by a single azure region. No

  References:

  https://azure.microsoft.com/en-us/global-infrastructure/regions/

  https://azure.microsoft.com/en-us/pricing/details/bandwidth/

• Question 382:

  Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.

  After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

  You plan to deploy several Azure virtual machines.

  You need to ensure that the services running on the virtual machines are available if a single data center fails.

  Solution: You deploy the virtual machines to two or more resource groups.

  Does this meet the goal?

  A. Yes
  B. No
  B. No

  ---

  A resource group is a logical container for Azure resources. When you create a resource group, you specify which location to create the resource group in. However, when you create a virtual machine and place it in the resource group, the virtual machine can still be in a different location (different datacenter). Therefore, creating multiple resource groups, even if they are in separate datacenters does not ensure that the services running on the virtual machines are available if a single data center fails.

  References: https://docs.microsoft.com/en-us/azure/azure-resource-manager/management/overview#resource-groups

• Question 383:

  HOTSPOT

  Select the answer that correctly completes the sentence.

  

  

  Explanation:

  An organization that hosts its own infrastructure in the public cloud no longer requires a data center.

• Question 384:

  What is used to grant permission to Azure Virtual Desktop resources?

  A. tags
  B. role-based access control (RBAC) roles
  C. resource groups
  D. application security groups
  B. role-based access control (RBAC) roles

  ---

  RBAC roles: Role-Based Access Control (RBAC) in Azure is used to grant users, groups, or applications specific permissions to Azure resources. For Azure Virtual Desktop, you assign RBAC roles to control access to host pools, application groups, and workspaces. This ensures that only authorized users can manage or access resources.

  Incorrect Answers:

  Tags: Tags are used for organizing resources and tracking costs; they do not grant access permissions.

  Resource groups: Resource groups are containers for Azure resources; they do not control permissions themselves, although you can assign RBAC roles at the resource group level.

  Application security groups: These are used to group virtual machines for network security purposes, not for granting access permissions.

  https://learn.microsoft.com/en-us/azure/role-based-access-control/overview https://learn.microsoft.com/en-us/azure/virtual-desktop/manage-rbac

  https://docs.microsoft.com/en-us/azure/virtual-desktop/rbac

• Question 385:

  HOTSPOT

  ______________ is the process of verifying a user's credentials.

  To complete the sentence, select the appropriate option in the answer area.

  

  

  Explanation:

  Authentication, not authorization is the process of verifying a user's credentials.

  The difference between authentication and authorization is:

  Authentication is proving your identity, proving that you are who you say you are. The most common example of this is logging in to a system by providing credentials such as a username and password.

  Authorization is what you're allowed to do once you've been authenticated. For example, what resources you're allowed to access and what you can do with those resources.

• Question 386:

  This question requires that you evaluate the underlined text to determine if it is correct.

  You can use Advisor recommendations in Azure to send email alerts when the cost of the current billing period for an Azure subscription exceeds a specified limit.

  Instructions: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

  A. No change is needed.
  B. Access control (IAM)
  C. Budget alerts
  D. Compliance
  C. Budget alerts

  ---

  Budget alerts notify you when spending, based on usage or cost, reaches or exceeds the amount defined in the alert condition of the budget. Cost Management budgets are created using the Azure portal or the Azure Consumption API.

  References: https://docs.microsoft.com/en-us/azure/cost-management-billing/costs/cost-mgt-alerts-monitor-usage- spending

• Question 387:

  HOTSPOT

  For each of the following statements, select Yes if the statement is true. Otherwise, select No.

  NOTE: Each correct selection is worth one point.

  

  

  Explanation:

  One of the major changes that you will face when you move from on-premises cloud to the public cloud is the switch from capital expenditure (buying hardware) to operating expenditure (paying for service as you use it).

  Box 1: No

  Azure Pay-As-You-Go pricing is an example of CapEx.

  With the pay-as-go model, you pay for services as you use them. This is Opex (Operational Expenditure), not CapEx (Captial Expenditure). CapEx is where you pay for something upfront. For example, buying a new physical server.

  Box 2: No

  A reserved instance is where you pay upfront for the use of a virtual machine for a period of time (1 or 3 years). This can save you money as you receive a discount on the cost of a VM if you pay upfront for a reserved instance. However, as this is an upfront payment, it will be classed as CapEx, not OpEx.

  Box 3: Yes

  Deploying your own datacenter is an example of CapEx. This is because you need to purchase all the infrastructure upfront before you can use it.

  References:

  https://docs.microsoft.com/en-us/azure/architecture/cloud-adoption/appendix/azure-scaffold

• Question 388:

  Microsoft 365 is an example of which cloud service model?

  A. infrastructure as a service (laaS)
  B. platform as a service (PaaS)
  C. software as a service (SaaS)
  C. software as a service (SaaS)

  ---

  
  

• Question 389:

  DRAG DROP

  Match the cloud service to the appropriate description.

  To answer, drag the appropriate cloud service from the column on the left to its description on the right. Each service may be used once, more than once, or not at all.

  NOTE: Each correct match is worth one point.

  Select and Place:

  

  

  Explanation:

• Question 390:

  You have an Azure application that uses the services shown in the following table.

  

  How should you calculate the composite SLA for the application?

  A. 0.999 * 0.9999 = 0.9989001 = 99.89001%
  B. 0.999 / 0.9999 = 0.9991 = 99.91%
  C. Max(0.999, 0.9999) = 0.9999 = 99.99%
  D. Min(0.999, 0.9999) = 0.999 = 99.9%
  A. 0.999 * 0.9999 = 0.9989001 = 99.89001%

  ---

  Composite SLAs involve multiple services supporting an application, each with differing levels of availability. For example, consider an App Service web app that writes to Azure SQL Database. At the time of this writing, these Azure services have the following SLAs:

  1. App Service web apps = 99.95%

  2. SQL Database = 99.99%

  What is the maximum downtime you would expect for this application? If either service fails, the whole application fails. The probability of each service failing is independent, so the composite SLA for this application is 99.95% ?99.99% = 99.94%. That's lower than the individual SLAs, which isn't surprising because an application that relies on multiple services has more potential failure points.

  https://docs.microsoft.com/en-us/azure/architecture/reliability/requirements#understand-service-level-agreements