Topic 1: Litware inc. Case Study: 1

   

Overview
Existing Environment
Litware, Inc. an independent software vendor (ISV) Litware has a main office and five
branch offices.
Application Architecture
The company’ s primary application is a single monolithic retirement fund management
system based on ASP.NE T web forms that use logic written in V8.NET. Some new
sections of the application are written in C#.
Variations of the application are created for individual customers. Currently, there are more
than 80 have code branches in the application’s code base.
The application was developed by using Microsoft Visual Studio. Source code is stored in
Team Foundation Server (TFS) in the main office. The branch offices access of the source
code by using TFS proxy servers.
Architectural Issues
Litware focuses on writing new code for customers. No resources are provided to refactor
or remove existing code. Changes to the code base take a long time, AS dependencies are
not obvious to individual developers.
Merge operations of the code often take months and involve many developers. Code
merging frequently introduces bugs that are difficult to locate and resolve.
Customers report that ownership costs of the retirement fund management system
increase continually. The need to merge unrelated code makes even minor code changes
expensive.
Requirements
Planned Changes
Litware plans to develop a new suite of applications for investment planning. The
investment planning Applications will require only minor integration with the easting
retirement fund management system.
The investment planning applications suite will include one multi-tier web application and
two iOS mobile applications. One mobile application will be used by employees; the other
will be used by customers.
Litware plans to move to a more agile development methodology. Shared code will be
extracted into a series of package.
Litware has started an internal cloud transformation process and plans to use cloud based
services whenever suitable.
Litware wants to become proactive m detecting failures, rather than always waning for
customer bug reports.
Technical Requirements
The company's investment planning applications suite must meet the following technical
requirements:
• New incoming connections through the firewall must be minimized.
• Members of a group named Developers must be able to install packages.
• The principle of least privilege must be used for all permission assignments
• A branching strategy that supports developing new functionality in isolation must be used.
• Members of a group named Team leaders must be able to create new packages and edit the permissions of package feeds
• Visual Studio App Center must be used to centralize the reporting of mobile application
crashes and device types in use.
• By default, all App Center must be used to centralize the reporting of mobile application
crashes and device types in use.
• Code quality and release quality are critical. During release, deployments must not
proceed between stages if any active bugs are logged against the release.
• The mobile applications must be able to call the share pricing service of the existing
retirement fund management system. Until the system is upgraded, the service will only
support basic authentication over HUPS.
• The required operating system configuration tor the test servers changes weekly. Azure
Automation State Configuration must be used to ensure that the operating system on each
test servers configured the same way when the servers are created and checked
periodically.
Current Technical
The test servers are configured correctly when first deployed, but they experience
configuration drift over time. Azure Automation State Configuration fails to correct the
configurations.
Azure Automation State Configuration nodes are registered by using the following
command.

What should you use to implement the code quality restriction on the release pipeline for the investment planning applications suite?

A. a trigger

B. a pre deployment approval

C. a post-deployment approval

D. a deployment gate

D.   a deployment gate

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution. After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen. You plan to create a release pipeline that will deploy Azure resources by using Azure Resource Manager templates. The release pipeline will create the following resources:

  • Two resource groups
  • Four Azure virtual machines in one resource group
  • Two Azure SQL databases in other resource group
You need to recommend a solution to deploy the resources. Solution: Create a main template that will deploy the resources in one resource group and a nested template that will deploy the resources in the other resource group. Does this meet the goal?

A. Yes

B. No

B.   No

Use two linked templates, instead of the nested template.

How should you configure the filters for the Project5 trigger? To answer, select the appropriate option in the answer area.
NOTE: Each correct selection is worth one point.

You have an existing build pipeline in Azure Pipelines. You need to use incremental builds without purging the environment between pipeline executions. What should you use?

A. a File Transform task

B. a self-hosted agent

C. Microsoft-hosted parallel jobs

B.   a self-hosted agent

When you run a pipeline on a self-hosted agent, by default, none of the subdirectories are cleaned in between two consecutive runs. As a result, you can do incremental builds and deployments, provided that tasks are implemented to make use of that. You can override this behavior using the workspace setting on the job.

You have an Azure subscription that contains a Log Analytics workspace named WS1 and a virtual machine named VM1. You need to install the Microsoft Enterprise Cloud Monitoring extension on VM1. Which two values are required to configure the extension? Each correct answer presents part of the solution. NOTE: Each correct answer is worth one point.

A. the secret key of WS1

B. the ID of the subscription

C. the system-assigned managed identity of VM1

D. thelDofWS1

E. the resource ID of VM1

D.   thelDofWS1
E.   the resource ID of VM1

You add the virtual machines as managed nodes in Azure Automation State Configuration. You need to configure the computer in Group7.
What should you do?

A. Run the Register-AzureRmAutomationDscNode Azure Powershell cmdlet.

B. Modify the ConfigurationMode property of the Local Configuration Manager (LCM).

C. Install PowerShell Core.

D. Modify the RefreshMode property of the Local Configuration Manager (LCM).

A.   Run the Register-AzureRmAutomationDscNode Azure Powershell cmdlet.

Explanation: The Register-AzureRmAutomationDscNode cmdlet registers an Azure virtual machine as an APS Desired State Configuration (DSC) node in an Azure Automation account.

Scenario: The Azure DevOps organization includes: The Docker extension
A deployment pool named Pool7 that contains 10 Azure virtual machines that run Windows Server 2016

You are developing an Azure Pipelines pipeline. You need to configure a check in the pipeline that will query Azure Boards to ensure that there are no active work item issues before the pipeline deploys a build to production. Which type of check should you implement?

A. post-deployment approvals

B. manual validations

C. pre-deployment gates

D. pre-deployment approvals

C.   pre-deployment gates

You need to implement the code flow strategy for Project2 in Azure DevOps.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.


You plan to share packages that you wrote, tested, validated, and deployed by using Azure Artifacts. You need to release multiple builds of each package by using a single feed. The solution must limit the release of packages that are in development. What should you use?

A. global symbols

B. local symbols

C. upstream sources

D. views

C.   upstream sources

Views enable you to share subsets of the NuGet, npm, Maven, Python and Universal Packages package-versions in your feed with consumers. A common use for views is to share package versions that have been tested, validated, or deployed but hold back packages still under development and packages that didn’t meet a quality bar.

In Azure DevOps, you create Project3.
You need to meet the requirements of the project. What should you do first?

A. From Azure DevOps, create a service endpoint.

B. From Sonar Qube, obtain an authentication token.

C. From Azure DevOps, modify the build definition.

D. From Sonar Qube , create a project.

A.   From Azure DevOps, create a service endpoint.

Explanation: The first thing to do is to declare your Sonar Qube server as a service endpoint in your VSTS/DevOps project settings.

Page 7 out of 49 Pages
AZ-400 Practice Test Previous

Are You Truly Prepared?

Don't risk your exam fee on uncertainty. Take this definitive practice test to validate your readiness for the Microsoft AZ-400 exam.

Enroll Now