This is the 11th day of my participation in the August More text Challenge. For details, see: August More Text Challenge

In my column:Microsoft AZ-900 Certification Learning

Learn about Microsoft AZ-900 Certification chapter ii with Regan Yue

12 – Question

You plan to migrate your Web application to Azure. Web applications are intended to be accessed by external users. You need to recommend a cloud deployment solution to minimize the effort of managing your Web application. Which one do you recommend?

A. Software as A Service (SaaS)

B. Platform as a Service (PaaS)

C. Infrastructure as a Service (IaaS)

D. Database as a Service (DaaS)

12 – Answer

The correct answer is: B

Azure Application Services is a platform as a Service (PaaS) product that lets you create Web and mobile applications for any platform or device and connect to data anywhere in the cloud or locally. Application services include Web and mobile capabilities previously provided separately by the Azure Website and Azure Mobile services.

13 – Question

13 – Answer

Azure virtual machines are Infrastructure as a Service (IaaS). Infrastructure-as-a-service is the most flexible cloud service. IT gives you complete control over the hardware (IT infrastructure servers and virtual machines (VMS), storage, networks, and operating systems) that run your applications. With IaaS, instead of buying hardware, you rent it.

Azure SQL database is a platform as a Service (Paas). Azure SQL database is a fully managed platform as a service (PaaS) database engine that handles most database management functions, such as upgrades, patches, backups, and monitoring, without user involvement. Azure SQL databases are consistently running on the latest stable version of the SQL Server database engine and patched operating system with 99.99% availability.

14 – Question

You have a local network of 100 servers. You need to recommend a solution that provides additional resources for users. The solution must minimize capital and operating expense costs. What should you include in the proposal? A. Full migration to the public cloud B. Additional data centers C. Private cloud D. A hybrid cloud

14 – Answer

D

A hybrid cloud is a combination of private and public clouds. There are now 100 servers, and there is already upfront spending on infrastructure, such as new servers. With a hybrid cloud, you can continue to use local servers while using a public cloud (such as Azure). Adding new servers to Azure minimizes overhead because you don’t need to continue deploying new servers locally. Incorrect answer: A: Moving all 100 servers to the public cloud would involve significant operating expenses (the cost of moving all servers). B: The additional data centers will involve significant capital expenditures (the cost of new infrastructure). C: Private clouds are hosted on local servers, which will involve significant capital expenditures (the cost of new infrastructure to host private clouds).

15 – Question

15 – Answer

  1. To implement the hybrid cloud model, companies must always migrate error F from the private cloud

It is not true that companies can only migrate from private cloud models to implement hybrid clouds. You can start with a public cloud and then combine it with your local infrastructure to implement a hybrid cloud.

  1. Companies can expand the capacity of their internal networks by using public clouds. T

Companies can expand the capacity of their internal networks by using public clouds. This is very common.

When you need more capacity and you don’t want to pay for a new local infrastructure, you can configure your cloud environment and use A VPN to connect your local network to the cloud environment.

  1. In public cloud mode, only corporate guest users can access the resources in the cloud. F

Not only guest users can access cloud resources. You can grant access to cloud resources to anyone with an Azure Active Directory account. There are many authentication schemes, but a common one is to copy local Active Directory accounts to Azure Active Directory and provide access to Azure Active Directory accounts. Another common authentication method is to pass authentication for accessing cloud resources to another authentication provider, such as local Active Directory.