The latest Microsoft AZ-900 Azure Fundamentals certification actual real practice exam question and answer (Q&A) dumps are available free, which are helpful for you to pass the Microsoft AZ-900 Azure Fundamentals exam and earn Microsoft AZ-900 Azure Fundamentals certification.
Question 841
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Statement 1: Building a data center infrastructure is an example of operational expenditure (OpEx) costs: No
Statement 2: Monthly salaries for technical personnel are an example of operational expenditure (OpEx) costs: Yes
Statement 3: Leasing software is an example of operational expenditure (OpEx) costs: Yes
Explanation
Statement 1: Building a data center infrastructure is an example of operational expenditure (OpEx) costs: No
Building a data center infrastructure is capital expenditure, not operation expenditure.
Statement 2: Monthly salaries for technical personnel are an example of operational expenditure (OpEx) costs: Yes
OpEx is ongoing costs (costs of operations) such as staff salaries.
Statement 3: Leasing software is an example of operational expenditure (OpEx) costs: Yes
OpEx is ongoing costs (costs of operations) such as leasing software. If you purchased software as a one-off purchase, that would be CapEx, but leasing software is ongoing so it’s OpEx.
Question 842
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Statement 1: A platform as a service (PaaS) solution that hosts web apps in Azure provides full control of the operating systems that host applications: No
Statement 2: A Platform as a Service (PaaS) solution that hosts web apps in Azure can be provided with additional memory by changing the pricing tier: Yes
Statement 3: A Platform as a Service (PaaS) solution that hosts web apps in Azure can be configured to automatically scale the number of instances based on demand: Yes
Explanation
Statement 1: A platform as a service (PaaS) solution that hosts web apps in Azure provides full control of the operating systems that host applications: 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.
Statement 2: A Platform as a Service (PaaS) solution that hosts web apps in Azure can be provided with additional memory by changing the pricing tier: Yes
Statement 3: A Platform as a Service (PaaS) solution that hosts web apps in Azure can be configured to automatically scale the number of instances based on demand: Yes
A PaaS solution that hosts web apps in Azure does provide the ability to scale the platform automatically. This is known as autoscaling. Behind the scenes, the web apps are hosted on virtual machines running IIS. Autoscaling means adding more load balanced virtual machines to host the web apps.
Question 843
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Statement 1: A company can extend a private cloud by adding its own physical servers to the public cloud: No
Statement 2: To build a hybrid cloud, you must deploy resources to the public cloud: Yes
Statement 3: A private cloud must be disconnected from the internet: No
Explanation
Statement 1: A company can extend a private cloud by adding its own physical servers to the public cloud: No
You cannot add physical servers to the public cloud. You can only deploy virtual servers in the public cloud. You can extend a private cloud by deploying virtual servers in a public cloud. This would create a hybrid cloud.
Statement 2: To build a hybrid cloud, you must deploy resources to the public cloud: Yes
A hybrid cloud is a combination of a private cloud and public cloud. Therefore, to create a hybrid cloud, you must deploy resources to a public cloud.
Statement 3: A private cloud must be disconnected from the internet: No
It is not true that a private cloud must be disconnected from the Internet. Private clouds can be and most commonly are connected to the Internet. “Private cloud” means that the physical servers are managed by you. It does not mean that it is disconnected from the Internet.
Question 844
Match the cloud model to the correct advantage. Each cloud model may be used once, more than once, or not at all.
Cloud models:
- Hybrid Cloud
- Private Cloud
- Public Cloud
Advantages:
- No required capital expenditure.
- Provides complete control over security.
- Provides a choice to use on-premises or cloud-based resources.
Answer:
Public Cloud: No required capital expenditure.
Private Cloud: Provides complete control over security.
Hybrid Cloud: Provides a choice to use on-premises or cloud-based resources.
Explanation
Public Cloud: No required capital expenditure.
With a public cloud, there is no capital expenditure on server hardware etc. You only pay for cloud resources that you use as you use them.
Private Cloud: Provides complete control over security.
A private cloud exists on premises, so you have complete control over security.
Hybrid Cloud: Provides a choice to use on-premises or cloud-based resources.
A hybrid cloud is a mix of public cloud resources and on-premises resources. Therefore, you have a choice to use either.
Question 845
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Statement 1: Azure Pay-As-You-Go pricing is an example of CapEx: No
Statement 2: Paying electricity for your datacenter is an example of OpEx: No
Statement 3: Deploying your own datacenter is an example of CapEx: Yes
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).
Statement 1: Azure Pay-As-You-Go pricing is an example of CapEx: No
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.
Statement 2: Paying electricity for your datacenter is an example of OpEx: No
Paying for electricity for your own datacenter will be classed as CapEx, not OpEx.
Statement 3: Deploying your own datacenter is an example of CapEx: 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.
Question 846
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Statement 1: A Platform as a Service (PaaS) solution provides full control of operating systems that host applications: No
Statement 2: A Platform as a Service (PaaS) solution provides additional memory to apps by changing pricing tiers: No
Statement 3: A Platform as a Service (PaaS) solution can automatically scale the number of instances: Yes
Question 847
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Statement 1: To implement a hybrid cloud model, a company must have an internal network: No
Statement 2: A company can extend the computing resources of its internal network by using a hybrid cloud: Yes
Statement 3: In a public cloud model, only guest users at your company can access the resources in the cloud: No
Explanation
Statement 1: To implement a hybrid cloud model, a company must have an internal network: No
It is not true that a company must always migrate from an internal network 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.
Statement 2: A company can extend the computing resources of its internal network by using a hybrid cloud: 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.
Statement 3: In a public cloud model, only guest users at your company can access the resources in the cloud: 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.
Question 848
Match the Azure Cloud Services benefit to the correct description. Each benefit may be used once, more than once, or not at all.
Azure Cloud Services:
- Disaster recovery
- Fault tolerance
- Low latency
- Dynamic scalability
Descriptions:
- A cloud service that remains available after a failure occurs
- A cloud service that can be recovered after a failure occurs
- A cloud service that performs quickly when demand increases
- A cloud service that can be accessed quickly from the internet
Answer:
Fault tolerance: A cloud service that remains available after a failure occurs
Disaster recovery: A cloud service that can be recovered after a failure occurs
Dynamic scalability: A cloud service that performs quickly when demand increases
Low latency: A cloud service that can be accessed quickly from the internet
Explanation
Fault tolerance: A cloud service that remains available after a failure occurs
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.
Disaster recovery: A cloud service that can be recovered after a failure occurs
Disaster recovery is the recovery of a service after a failure. For example, restoring a virtual machine from backup after a virtual machine failure.
Dynamic scalability: A cloud service that performs quickly when demand increases
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.
Low latency: A cloud service that can be accessed quickly from the internet
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.
Question 849
To complete the sentence, select the appropriate option in the answer area.
An Azure web app that queries an on-premises Microsoft SQL server is an example of a __________ cloud.
Answer Area:
*A. hybrid
B. multi-vendor
C. private
D. public
Question 850
To complete the sentence, select the appropriate option in the answer area.
Azure Site Recovery provides __________ for virtual machines.
Answer Area for:
*A. fault tolerance
B. disaster recovery
C. elasticity
D. high availability
Explanation
Azure Site Recovery helps ensure business continuity by keeping business apps and workloads running during outages. Site Recovery replicates workloads running on physical and virtual machines (VMs) from a primary site to a secondary location.