Download Microsoft Azure Fundamentals.examcollection.AZ-900.2020-06-14.1e.132q.vcex

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Exam Microsoft Azure Fundamentals
Number AZ-900
File Name Microsoft Azure Fundamentals.examcollection.AZ-900.2020-06-14.1e.132q.vcex
Size 5.93 Mb
Posted June 14, 2020
Downloads 97
Download Microsoft Azure Fundamentals.examcollection.AZ-900.2020-06-14.1e.132q.vcex

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Demo Questions

Question 1

You have an on-premises network that contains 100 servers.  
You need to recommend a solution that provides additional resources to your users. The solution must minimize capital and operational expenditure costs.  
What should you include in the recommendation?

  • A: a complete migration to the public cloud
  • B: an additional data center
  • C: a private cloud
  • D: a hybrid cloud

Correct Answer: D

A hybrid cloud is a combination of a private cloud and a public cloud. 
Capital expenditure is the spending of money up-front for infrastructure such as new servers. 
With a hybrid cloud, you can continue to use the on-premises servers while adding new servers in the public cloud (Azure for example).  Adding new servers in Azure minimizes the capital expenditure costs as you are not paying for new servers as you would if you deployed new server on-premises. 
Incorrect Answers:
A: A complete migration of 100 servers to the public cloud would involve a lot of operational expenditure (the cost of migrating all the servers). 
B: An additional data center would involve a lot of capital expenditure (the cost of the new infrastructure).
C: A private cloud is hosted on on-premises servers to this would involve a lot of capital expenditure (the cost of the new infrastructure to host the private cloud). 
References:
https://docs.microsoft.com/en-gb/learn/modules/principles-cloud-computing/4-cloud-deployment-models




Question 2

For each of the following statements, select Yes if the statement is true. Otherwise, select No.  
NOTE: Each correct selection is worth one point.  

Correct Answer: Exam simulator is required

Box 1: No
It is not true that a company must always migrate from a private cloud model to implement a hybrid cloud.  You could start with a public cloud and then combine that with an on-premise infrastructure to implement a hybrid cloud. 
Box 2: Yes
A company can extend the capacity of its internal network by using the public cloud.  This is very common.  
When you need more capacity, rather than pay out for new on-premises infrastructure, you can configure a cloud environment and connect your on-premises network to the cloud environment by using a VPN. 
Box 3: No
It is not true that only guest users can access cloud resources.  You can give anyone with an account in Azure Active Directory access to the cloud resources.  There are many authentication scenarios but a common one is to replicate your on-premises Active Directory accounts to Azure Active Directory and provide access to the Azure Active Directory accounts.  Another commonly used authentication method is ‘Federation’ where authentication for access to cloud resources is passed to another authentication provider such as an on-premises Active Directory. 
https://azure.microsoft.com/en-gb/overview/what-is-hybrid-cloud-computing/




Question 3

You plan to migrate several servers from an on-premises network to Azure.  
What is an advantage of using a public cloud service for the servers over an on-premises network?

  • A: The public cloud is owned by the public, NOT a private corporation
  • B: The public cloud is a crowd-sourcing solution that provides corporations with the ability to enhance the cloud
  • C: All public cloud resources can be freely accessed by every member of the public
  • D: The public cloud is a shared entity whereby multiple corporations each use a portion of the resources in the cloud

Correct Answer: D

The public cloud is a shared entity whereby multiple corporations each use a portion of the resources in the cloud.  The hardware resources (servers, infrastructure etc.) are managed by the cloud provider. Multiple companies create resources such as virtual machines and virtual networks on the hardware resources. 
Incorrect Answers:
A: The public cloud is not owned by the public.  In the case of Microsoft Azure, the cloud is owned by Microsoft.
B: The public cloud is a not crowd-sourcing solution. In the case of Microsoft Azure, the cloud is owned by Microsoft. 
C: It is not true that public cloud resources can be freely accessed by every member of the public.  You pay for a cloud subscription and create accounts for your users to access your cloud resources.  No one can access your cloud resources until you create user accounts and provide the appropriate access permissions.




Question 4

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 scale sets.
Does this meet the goal?

  • A: Yes
  • B: No

Correct Answer: B

This answer does not specify that the scale set will be configured across multiple data centers so this solution does not meet the goal. 
Azure virtual machine scale sets let you create and manage a group of load balanced VMs. The number of VM instances can automatically increase or decrease in response to demand or a defined schedule. Scale sets provide high availability to your applications, and allow you to centrally manage, configure, and update many VMs.  
Virtual machines in a scale set can be deployed across multiple update domains and fault domains to maximize availability and resilience to outages due to data center outages, and planned or unplanned maintenance events.   
Reference:
https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/availability




Question 5

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 availability zones.
Does this meet the goal?

  • A: Yes
  • B: No

Correct Answer: A

Availability zones expand the level of control you have to maintain the availability of the applications and data on your VMs. An Availability Zone is a physically separate zone, within an Azure region. There are three Availability Zones per supported Azure region. 
Each Availability Zone has a distinct power source, network, and cooling. By architecting your solutions to use replicated VMs in zones, you can protect your apps and data from the loss of a datacenter. If one zone is compromised, then replicated apps and data are instantly available in another zone. 
Reference:
https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/availability




Question 6

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 regions.
Does this meet the goal?

  • A: Yes
  • B: No

Correct Answer: A

By deploying the virtual machines to two or more regions, you are deploying the virtual machines to multiple datacenters.  This will ensure that the services running on the virtual machines are available if a single data center fails. 
Azure operates in multiple datacenters around the world. These datacenters are grouped in to geographic regions, giving you flexibility in choosing where to build your applications. 
You create Azure resources in defined geographic regions like 'West US', 'North Europe', or 'Southeast Asia'. 
You can review the list of regions and their locations. Within each region, multiple datacenters exist to provide for redundancy and availability. 
Reference:
https://docs.microsoft.com/en-us/azure/virtual-machines/windows/regions




Question 7

You have 1,000 virtual machines hosted on the Hyper-V hosts in a data center. 
You plan to migrate all the virtual machines to an Azure pay-as-you-go subscription. 
You need to identify which expenditure model to use for the planned Azure solution. 
Which expenditure model should you identify?

  • A: operational
  • B: elastic
  • C: capital
  • D: scalable

Correct Answer: A

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). 
This switch also requires more careful management of your costs. The benefit of the cloud is that you can fundamentally and positively affect the cost of a service you use by merely shutting down or resizing it when it's not needed. 
References:
https://docs.microsoft.com/en-us/azure/architecture/cloud-adoption/appendix/azure-scaffold




Question 8

Match the Azure Cloud Services benefit to the correct description. 
Instructions: To answer, drag the appropriate benefit from the column on the left to its description on the right.
Each benefit may be used once, more than once, or not at all. 
NOTE: Each correct match is worth one point. 

Correct Answer: Exam simulator is required

Box 1:
Fault tolerance is the ability of a service to remain available after a failure of one of the components of the service.  For example, a service running on multiple servers can withstand the failure of one of the servers. 
Box 2:
Disaster recovery is the recovery of a service after a failure. For example, restoring a virtual machine from backup after a virtual machine failure. 
Box 3:
Dynamic scalability is the ability for compute resources to be added to a service when the service is under heavy load.  For example, in a virtual machine scale set, additional instances of the virtual machine are added when the existing virtual machines are under heavy load. 
Box 4:
Latency is the time a service to respond to requests.  For example, the time it takes for a web page to be returned from a web server.  Low latency means low response time which means a quicker response. 
References:
https://msdn.microsoft.com/en-us/magazine/mt422582.aspx
https://searchdisasterrecovery.techtarget.com/definition/cloud-disaster-recovery-cloud-DR
http://www.siasmsp.com/the-benefit-of-scalability-in-cloud-computing-2/
https://azure.microsoft.com/en-in/overview/what-is-cloud-computing/




Question 9

For each of the following statements, select Yes if the statement is true. Otherwise, select No. 
NOTE: Each correct selection is worth one point. 

Correct Answer: Exam simulator is required

Box 1: No
It is not true that a company must always migrate from a private cloud model or must first have a private cloud to implement a hybrid cloud.  You could start with a public cloud and then combine that with an on-premise infrastructure to implement a hybrid cloud. 
Box 2: Yes
A company can extend the computing resources of its internal network by using the public cloud.  This is very common.  When you need more resources, rather than pay out for new on-premises infrastructure, you can configure a cloud environment and connect your on-premises network to the cloud environment by using a VPN. 
Box 3: No
It is not true that only guest users can access cloud resources.  You can give anyone with an account in Azure Active Directory access to the cloud resources.  There are many authentication scenarios but a common one is to replicate your on-premises Active Directory accounts to Azure Active Directory and provide access to the Azure Active Directory accounts.  Another commonly used authentication method is ‘Federation’ where authentication for access to cloud resources is passed to another authentication provider such as an on-premises Active Directory. 
References:
https://azure.microsoft.com/en-gb/overview/what-is-hybrid-cloud-computing/




Question 10

For each of the following statements, select Yes if the statement is true. Otherwise, select No. 
NOTE: Each correct selection is worth one point. 

Correct Answer: Exam simulator is required

Box 1: No
A resource can interact with resources in other resource groups. 
Box 2: Yes
Deleting the resource group will remove the resource group as well as all the resources in that resource group. 
This can be useful for the management of resources.  For example, a virtual machine has several components (the VM itself, virtual disks, network adapter etc.).  By placing the VM in its own resource group, you can delete the VM along with all its associated components by deleting the resource group.   
Another example is when creating a test environment.  You could place the entire test environment (Network components, virtual machines etc.) in one resource group.  You can then delete the entire test environment by deleting the resource group. 
Box 3: Yes
Resources from multiple different regions can be placed in a resource group.  The resource group only contains metadata about the resources it contains. 
References:
https://docs.microsoft.com/en-us/azure/azure-resource-manager/resource-group-overview
https://www.codeisahighway.com/effective-ways-to-delete-resources-in-a-resource-group-on-azure/










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