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| Question.11 You’re developing an application and want to focus on building, testing, and deploying. You don’t want to worry about managing the underlying hardware or software. Which cloud service type is best for you? (A) Infrastructure as a Service (IaaS) (B) Software as a Service (SaaS) (C) Platform as a Service (PaaS) (D) None of These |
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Answer is (C) Platform as a Service (PaaS)
Platform as a Service is the best choice here because the PaaS services handle the IT management tasks for you, so you can focus on writing code.
| Question.12 You plan to use the Workspace.from_config() method to connect to your Azure Machine Learning workspace from a Python environment on your local workstation. You have already used pip to install the azureml-sdk package. What else should you do? (A) Run pip install azureml-sdk[‘notebooks’] to install the notebooks extra. (B) Download the config.json file for your workspace to the folder containing your local Python code files. (C) Create a Compute Instance compute target in your workspace. (D) None of These. |
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Answer is (B) Download the config.json file for your workspace to the folder containing your local Python code files.
To connect to a workspace from an environment outside of the workspace, you should download the config.json file for your workspace from the Azure portal. This includes the subscription and workspace information necessary to connect.
| Question.13 For each of the following statements, select Yes if the statement is true. Otherwise, select No.  |
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Box 1: 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.
Box 2: 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.
Box 3: Yes
PaaS provides a framework that developers can build upon to develop or customize cloud-based applications. PaaS development tools can cut the time it takes to code new apps with pre-coded application components built into the platform, such as workflow, directory services, security features, search and so on.
References:
https://azure.microsoft.com/en-gb/overview/what-is-paas/
| Question.14 To complete the sentence, select the appropriate option in the answer area.  |
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When you are implementing a Software as a Service (SaaS) solution, you are responsible for configuring the SaaS solution. Everything else is managed by the cloud provider.
SaaS requires the least amount of management. The cloud provider is responsible for managing everything, and the end user just uses the software.
Software as a service (SaaS) allows users to connect to and use cloud-based apps over the Internet. Common examples are email, calendaring and office tools (such as Microsoft Office 365).
SaaS provides a complete software solution which you purchase on a pay-as-you-go basis from a cloud service provider. You rent the use of an app for your organization and your users connect to it over the Internet, usually with a web browser. All of the underlying infrastructure, middleware, app software and app data are located in the service providerג€™s data center. The service provider manages the hardware and software and with the appropriate service agreement, will ensure the availability and the security of the app and your data as well.
Reference:
https://azure.microsoft.com/en-in/overview/what-is-saas/
https://docs.microsoft.com/en-gb/learn/modules/principles-cloud-computing/5-types-of-cloud-services
| Question.15 For each of the following statements, select Yes if the statement is true. Otherwise, select No.  |
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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.
Reference:
https://azure.microsoft.com/en-gb/overview/what-is-hybrid-cloud-computing/