Microsoft AZ-900 Online Practice Questions and Exam Preparation

Microsoft AZ-900 Online Questions & Answers

• Question 351:

  Fill in the blank

  To save on the costs of an unused Azure virtual machine that runs Windows 10, you should (__________________________________________________)

  select Stop for the virtual machine from the Azure portal.

• Question 352:

  Your company hosts an accounting application named App1 that is used by all the customers of the company.

  App1 has low usage during the first three weeks of each month and very high usage during the last week of each month.

  Which benefit of Azure Cloud Services supports cost management for this type of usage pattern?

  A. high availability
  B. high latency
  C. elasticity
  D. load balancing
  C. elasticity

  ---

  Elasticity in this case is the ability to provide additional compute resource when needed and reduce the compute resource when not needed to reduce costs. Autoscaling is an example of elasticity.

  Elastic computing is the ability to quickly expand or decrease computer processing, memory and storage resources to meet changing demands without worrying about capacity planning and engineering for peak usage. Typically controlled by system monitoring tools, elastic computing matches the amount of resources allocated to the amount of resources actually needed without disrupting operations. With cloud elasticity, a company avoids paying for unused capacity or idle resources and doesn't have to worry about investing in the purchase or maintenance of additional resources and equipment.

  References: https://azure.microsoft.com/en-gb/overview/what-is-elastic-computing/

• Question 353:

  HOTSPOT

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

  

  

  Explanation:

  All azure services that are in public preview are excluded from the service level agreements.

  Preview features are made available to you on the condition that you accept additional terms which supplement the regular Azure terms. The supplemental terms state:

  PREVIEWS ARE PROVIDED "AS-IS," "WITH ALL FAULTS," AND "AS AVAILABLE," AND ARE EXCLUDED FROM THE SERVICE LEVEL AGREEMENTS AND LIMITED WARRANTY.

  Reference:

  https://azure.microsoft.com/en-gb/support/legal/preview-supplemental-terms/

• Question 354:

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

  Azure Cost Management can be used to track usage and forecast spending across all Azure subscriptions and AWS accounts.

  A. No change is needed
  B. Only Azure subscriptions
  C. Only Azure subscriptions and GCP accounts
  D. Only pay-as-you-go subscriptions
  A. No change is needed

  ---

  Azure Cost Management can manage multicloud cost visibility, including AWS when connected.

• Question 355:

  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:

  A company has complete control of the resources and security for its private cloud. Yes

• Question 356:

  Which component of Azure enables encrypted communication between on-premises networks and Azure virtual networks?

  A. Azure ExpressRoute
  B. VPN Gateway
  C. Azure Load Balancer
  D. Azure Front Door
  B. VPN Gateway

  ---

  VPN Gateway provides secure, encrypted site-to-site or point-to-site communication. ExpressRoute is private but not encrypted. Load Balancer and Front Door are traffic distribution services.

• Question 357:

  DRAG DROP

  Match the Azure services benefits to the correct descriptions.

  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.

  Select and Place:

  

  

  Explanation:

  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 358:

  What enables a cloud service to adapt quickly to changing requirements?

  A. high availability
  B. predictability
  C. manageability
  D. agility
  D. agility

  ---

  Agility is the ability to react quickly.

  In the cloud, it takes a minute or two to create a Virtual Machine that is up and running. On the other hand, it takes days or weeks when we submit a request to purchase a physical server and by when it gets delivered.

  Agility enables users to be able to allocate and deallocate resources very quickly, and that is a huge benefit of the cloud.

  https://coderjony.com/blogs/cloud-computing-concepts-high-availability-scalability-elasticity-agility-fault-tolerance-and-disaster-recovery

• Question 359:

  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:

  To achieve a hybrid cloud model, a company must always migrate from a private cloud mode. Yes

  https://azure.microsoft.com/en-gb/overview/what-is-hybrid-cloud-computing/

• Question 360:

  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:

  If you have azure resources deployed to every region, you can implement availability zones in all the regions. No

  References:

  https://docs.microsoft.com/en-gb/azure/availability-zones/az-overview