Case study -
This is a case study. Case studies are not timed separately. You can use as much exam time as you would like to complete each case. However, there may be additional case studies and sections on this exam. You must manage your time to ensure that you are able to complete all questions included on this exam in the time provided.
To answer the questions included in a case study, you will need to reference information that is provided in the case study. Case studies might contain exhibits and other resources that provide more information about the scenario that is described in the case study. Each question is independent of the other questions in this case study.
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To start the case study -
To display the first question in this case study, click the Next button. Use the buttons in the left pane to explore the content of the case study before you answer the questions. Clicking these buttons displays information such as business requirement, existing environment, and problem statements. If the case study has an
All Information tab, note that the information displayed is identical to the information displayed on the subsequent tabs. When you are ready to answer a question, click the Question button to return to the question.
Overview -
Fabrikam, Inc. is an engineering company that has offices throughout Europe. The company has a main office in London and three branch offices in Amsterdam,
Berlin, and Rome.
Existing Environment -
Active Directory Environment -
The network contains two Active Directory forests named corp.fabrikam.com and rd.fabrikam.com. There are no trust relationships between the forests.
Corp.fabrikam.com is a production forest that contains identities used for internal user and computer authentication.
Rd.fabrikam.com is used by the research and development (R&D) department only.
Network Infrastructure -
Each office contains at least one domain controller from the corp.fabrikam.com domain. The main office contains all the domain controllers for the rd.fabrikam.com forest.
All the offices have a high-speed connection to the Internet.
An existing application named WebApp1 is hosted in the data center of the London office. WebApp1 is used by customers to place and track orders.
WebApp1 has a web tier that uses Microsoft Internet Information Services (IIS) and a database tier that runs Microsoft SQL Server 2016. The web tier and the database tier are deployed to virtual machines that run on Hyper-V.
The IT department currently uses a separate Hyper-V environment to test updates to WebApp1.
Fabrikam purchases all Microsoft licenses through a Microsoft Enterprise Agreement that includes Software Assurance.
Problem Statements -
The use of Web App1 is unpredictable. At peak times, users often report delays. At other times, many resources for WebApp1 are underutilized.
Requirements -
Planned Changes -
Fabrikam plans to move most of its production workloads to Azure during the next few years.
As one of its first projects, the company plans to establish a hybrid identity model, facilitating an upcoming Microsoft Office 365 deployment.
All R&D operations will remain on-premises.
Fabrikam plans to migrate the production and test instances of WebApp1 to Azure.
Technical Requirements -
Fabrikam identifies the following technical requirements:
Web site content must be easily updated from a single point.
User input must be minimized when provisioning new app instances.
Whenever possible, existing on-premises licenses must be used to reduce cost.
Users must always authenticate by using their corp.fabrikam.com UPN identity.
Any new deployments to Azure must be redundant in case an Azure region fails.
Whenever possible, solutions must be deployed to Azure by using platform as a service (PaaS).
An email distribution group named IT Support must be notified of any issues relating to the directory synchronization services.
Directory synchronization between Azure Active Directory (Azure AD) and corp.fabrikam.com must not be affected by a link failure between Azure and the on- premises network.
Database Requirements -
Fabrikam identifies the following database requirements:
Database metrics for the production instance of WebApp1, must be available for analysis so that database administrators can optimize the performance settings.
To avoid disrupting customer access, database downtime must be minimized when databases are migrated.
Database backups must be retained for a minimum of seven years to meet compliance requirements.
Security Requirements -
Fabrikam identifies the following security requirements:
Company information including policies, templates, and data must be inaccessible to anyone outside the company.
Users on the on-premises network must be able to authenticate to corp.fabrikam.com if an Internet link fails.
Administrators must be able authenticate to the Azure portal by using their corp.fabrikam.com credentials.
All administrative access to the Azure portal must be secured by using multi-factor authentication.
The testing of WebApp1 updates must not be visible to anyone outside the company.
You need to recommend a strategy for the web tier of WebApp1. The solution must minimize costs.
What should you recommend?
Introductory Info
Question
Click on the arrows to vote for the correct answer
A. B. C. D.D
Based on the given scenario, Fabrikam Inc. plans to migrate the production and test instances of WebApp1 to Azure, and the solution should minimize costs. The solution should also be redundant in case an Azure region fails and must be deployed to Azure by using PaaS whenever possible.
Option A. Configure the Scale Up settings for a web app - This option is not the best solution since scaling up would mean increasing the size of the virtual machines hosting the web tier of WebApp1. This will result in higher costs, which is not in line with Fabrikam's requirement of minimizing costs.
Option B. Create a runbook that resizes virtual machines automatically to a smaller size outside of business hours - This option is also not the best solution since resizing virtual machines will not address the issue of resource underutilization during non-peak hours. It will only reduce costs during non-peak hours, but the solution will still be expensive during peak hours.
Option C. Deploy a virtual machine scale set that scales out on a 75 percent CPU threshold - This option involves using a virtual machine scale set to automatically increase the number of virtual machines in the web tier when the CPU usage reaches 75 percent. This solution addresses the issue of resource underutilization during non-peak hours and ensures redundancy in case an Azure region fails. Using a virtual machine scale set also allows Fabrikam to use existing licenses whenever possible since the virtual machines can be based on existing images. This solution, however, does not use PaaS as recommended in the technical requirements.
Option D. Configure the Scale Out settings for a web app - This option involves configuring the Scale Out settings for the web app, allowing it to automatically increase the number of instances in response to increased traffic. This solution will also address the issue of resource underutilization during non-peak hours and ensure redundancy in case an Azure region fails. However, like Option C, this solution does not use PaaS as recommended in the technical requirements.
Based on the given requirements and technical requirements, the best recommendation is Option C. Deploy a virtual machine scale set that scales out on a 75 percent CPU threshold since it addresses the requirements and technical requirements, and also minimizes costs by using existing licenses whenever possible.