Microsoft AZ-400 Exam Questions
Designing and Implementing Microsoft DevOps Solutions (Page 8 )

Updated On: 23-Apr-2026

You use Azure Pipelines to build and test code.

You need to analyze the agent pool usage.

What are two ways to achieve the goal? Each correct answer presents a complete solution.

Note: Each correct selection is worth one point.

  1. Query the PipelineRun/PipelineRuns endpoint.
  2. Review the historical graph for the agent pools.
  3. Query the TaskAgentPoolSizeSnapshot/TaskAgentPoolSizeSnapshots endpoint.
  4. Review the Pipeline duration report.

Answer(s): B,C

Explanation:

B: Azure Pipelines, Historical graph for agent pools
The pool consumption report enables you to view jobs running in your agent pools graphed with agent pool job concurrency over a span of up to 30 days. You can use this information to help decide whether your jobs aren't running because of concurrency limits. If you have many jobs queued or running jobs at the concurrency or online agents limit, you may wish to purchase additional parallel jobs or provision more self-hosted agents.
C: This endpoint provides historical data on the available agents in your pool over time. By querying this endpoint, you can identify periods where the number of available agents dipped, potentially causing queues and increased wait times for jobs.


Reference:

https://learn.microsoft.com/en-us/azure/devops/report/analytics/entity-reference-pipelines?view=azure- devops#taskagentpoolsizesnapshots https://learn.microsoft.com/en-us/azure/devops/pipelines/agents/pool-consumption-report



HOTSPOT (Drag and Drop is not supported)

You are using Agile process methodologies in Azure DevOps.

You need to deploy a dashboard that will provide progress reports for the following work items:

How long it took to close a work item after it was created.

How long it took to close a work item after the work was started.

Which type of widget should you use for each work item? To answer, select the appropriate options in the answer area.

Note: Each correct selection is worth one point.

Hot Area:

  1. See Explanation section for answer.

Answer(s): A

Explanation:




Box 1: Lead time
How long it took to close a work item after it was created.

Lead time measures the total time elapsed from the creation of work items to their completion.

Box 2: Cycle time
How long it took to close a work item after the work was started.

Cycle time measures the time it takes for your team to complete work items once they begin actively working on them.

Incorrect:
* Burndown chart, Burnup chart
Burndown and burnup charts support project management to visually track work completed over time.

Burndown charts begin with the total amount of planned work and then as work is completed graphs the remaining work. With the progression of time, the amount of to-do work decreases.

Burnup charts track work as it is completed over time. They're useful to show the rate at which work is getting completed.


Reference:

https://learn.microsoft.com/en-us/azure/devops/report/dashboards/burndown-guidance



DRAG DROP (Drag and Drop is not supported)

You have a GitHub repository that contains the source code for an app named App1.

You need to create process documentation for App1. The solution must include a diagram that displays the relationships between the phases of App1 as shown in the following exhibit.



How should you complete the markdown code? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

Note: Each correct selection is worth one point.

Select and Place:

  1. See Explanation section for answer.

Answer(s): A

Explanation:




Box 1: StateDiagram
Mermaid can render state diagrams. The syntax tries to be compliant with the syntax used in plantUml as this will make it easier for users to share diagrams between mermaid and plantUml.

Note: A state diagram is a type of diagram used in computer science and related fields to describe the behavior of systems. State diagrams require that the system described is composed of a finite number of states; sometimes, this is indeed the case, while at other times this is a reasonable abstraction.

Box 2: Processing
Composite states
In a real world use of state diagrams you often end up with diagrams that are multi-dimensional as one state can have several internal states. These are called composite states in this terminology.

In order to define a composite state you need to use the state keyword followed by an id and the body of the composite state between {}. See the example below:

stateDiagram-v2
[*] --> First state First {
[*] --> second second --> [*]
}

Note: Mermaid is a Markdown-inspired tool that renders text into diagrams. To create a Mermaid diagram, add Mermaid syntax inside a fenced code block with the mermaid language identifier.

Incorrect:
* flowchart
All Flowcharts are composed of nodes, the geometric shapes and edges, the arrows or lines. The mermaid code defines the way that these nodes and edges are made and interact.


Reference:

https://mermaid-js.github.io/mermaid/#/stateDiagram https://mermaid-js.github.io/mermaid/#/flowchart



DRAG DROP (Drag and Drop is not supported)

You have a web app named App1 that uses Application Insights in Azure Monitor to store log data. App1 has users in multiple locations.

You need to query App1 requests from London and Paris that return a 404 error. The solution must meet the following requirements:

Return the timestamp, url, resultCode, and duration fields.

Only show requests made during the last hour.

How should you complete the query? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

Note: Each correct selection is worth one point.

Select and Place:

  1. See Explanation section for answer.

Answer(s): A

Explanation:




Box 1: timestamp >= ago(1hr)
Add a time filter to the query
You can also define your own time range by adding a time filter to the query. It's best to place the time filter immediately after the table name:

SecurityEvent
| where TimeGenerated > ago(30m)
| where toint(Level) >= 10
In the preceding time filter, ago(30m) means "30 minutes ago." This query returns records from only the last 30 minutes, which is expressed as, for example, 30m. Other units of time includ

Box 2: project
Use project and extend to select and compute columns
Use project to select specific columns to include in the results:

SecurityEvent
| top 10 by TimeGenerated
| project TimeGenerated, Computer, Activity


Reference:

https://learn.microsoft.com/en-us/azure/azure-monitor/logs/get-started-queries



DRAG DROP (Drag and Drop is not supported)

You have a web app named App1 that is hosted on multiple servers. App1 uses Application Insights in Azure Monitor.

You need to compare the daily CPU usage from the last week for all servers.

How should you complete the query? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

Note: Each correct selection is worth one point.

Select and Place:

  1. See Explanation section for answer.

Answer(s): A

Explanation:




Box 1: bin(timestamp,1d)
Summarizing each day's request count into a timechart (a line chart). We also have options got a bar chart (barchart), pie chart (piechart), area chart (areachart) and scatter chart (scatterchart)

requests
| summarize request_count = count() by bin(timestamp, 1d)
| render timechart

Box 2: render (timechart,1d)


Reference:

https://putridparrot.com/blog/basics-of-kql/



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AZ-400 Exam Discussions & Posts

What the AZ-400 Exam Tests and How to Pass It

The Designing and Implementing Microsoft DevOps Solutions exam is designed for professionals who function as DevOps engineers, combining people, process, and technologies to continuously deliver business value. Candidates for this Microsoft certification are typically responsible for designing and implementing strategies for collaboration, code, infrastructure, source control, security, compliance, continuous integration, testing, delivery, monitoring, and feedback. Organizations hire individuals with this credential to bridge the gap between development and operations teams, ensuring that software delivery is efficient, secure, and reliable. Achieving this certification demonstrates that a professional possesses the technical expertise to manage the end-to-end lifecycle of software development within the Microsoft Azure ecosystem. It is a critical benchmark for those aiming to prove their competency in modern DevOps practices and cloud-native application management.

What the AZ-400 Exam Covers

The exam evaluates a candidate's ability to design and implement processes and communications, which is foundational for establishing a culture of shared responsibility. You will be tested on your capacity to design and implement a source control strategy, ensuring that version control systems are utilized effectively across development teams. Furthermore, the exam requires proficiency in designing and implementing build and release pipelines, which are the core mechanisms for automating software deployment. Developing a security and compliance plan is another critical domain, where you must demonstrate how to integrate security practices directly into the DevOps workflow. Finally, the exam covers the implementation of an instrumentation strategy, ensuring that applications and infrastructure are properly monitored to provide actionable feedback. Our practice questions are structured to mirror these domains, allowing you to test your knowledge across each specific area of the curriculum.

The domain focused on designing and implementing build and release pipelines is often considered the most technically demanding aspect of the exam. Candidates must move beyond theoretical knowledge and demonstrate a deep understanding of how to configure continuous integration and continuous delivery (CI/CD) workflows that handle complex dependencies and multi-stage deployments. This requires familiarity with YAML-based pipeline definitions, artifact management, and the integration of various testing frameworks into the automated release process. Success in this area depends on your ability to troubleshoot pipeline failures and optimize deployment speeds, which necessitates hands-on experience with Azure DevOps or GitHub Actions.

Are These Real AZ-400 Exam Questions?

Our platform provides practice questions that are sourced and verified by the community, consisting of IT professionals and recent test-takers who have sat for the actual exam. Because these questions are community-verified, they reflect the types of scenarios and technical challenges that appear on the real exam. If you've been searching for AZ-400 exam dumps or braindump files, our community-verified practice questions offer something more valuable — each question is verified and explained by IT professionals who recently passed the exam. We do not provide leaked or confidential content, but rather a repository of knowledge built by those who have successfully navigated the certification process. This approach ensures that you are studying with materials that are relevant to the current exam objectives.

Community verification works through a collaborative process where users actively participate in the review of each question. When a user encounters a question, they can discuss the answer choices, flag potentially incorrect information, and share context from their own recent exam experience. This peer-review mechanism helps clarify complex topics and ensures that the explanations provided are accurate and up-to-date. By engaging with these discussions, you gain insights into the reasoning behind specific answers, which is far more effective for long-term retention than simply memorizing content.

How to Prepare for the AZ-400 Exam

Effective exam preparation requires a combination of theoretical study and practical application within a sandbox or real Azure environment. You should prioritize official Microsoft documentation to understand the core concepts, as the exam tests your ability to apply knowledge to specific business scenarios rather than rote memorization. Building a consistent study schedule that allocates time for each of the five major exam domains will help you cover the material comprehensively without feeling overwhelmed. Every practice question includes a free AI Tutor explanation that breaks down the reasoning behind the correct answer — so you understand the concept, not just the answer. This tool is designed to help you identify knowledge gaps and reinforce your understanding of complex DevOps principles.

A common mistake candidates make is relying solely on memorization, which often leads to failure when faced with scenario-based questions that require critical thinking. To avoid this, focus on understanding the "why" behind each configuration or process, rather than just the "how." Time management is also a critical skill during the certification exam; practicing with timed sets of questions will help you get accustomed to the pace required to complete the exam within the allotted time. Ensure you are comfortable with the interface and the types of questions you might encounter, such as case studies or drag-and-drop tasks, to reduce anxiety on the day of the test.

What to Expect on Exam Day

On the day of your certification exam, you can expect a rigorous assessment that evaluates your technical proficiency through various question formats. These typically include multiple-choice questions, scenario-based questions that require you to select the best solution for a given business problem, and potentially interactive elements like drag-and-drop or ordering tasks. The exam is administered by Microsoft's authorized testing partners, such as Pearson VUE, and is conducted under strict proctored conditions to ensure the integrity of the certification process. You will be allotted a specific amount of time to complete the exam, and it is important to manage your time carefully across the different sections. Familiarizing yourself with the exam environment beforehand can help you focus entirely on the technical content during the test.

Who Should Use These AZ-400 Practice Questions

These practice questions are intended for DevOps engineers, cloud architects, and system administrators who are preparing for the AZ-400 certification exam. Ideally, candidates should have several years of experience working with Azure and a solid understanding of DevOps principles, including CI/CD, infrastructure as code, and security integration. This exam is a significant step for professionals looking to validate their skills and advance their careers in cloud-native development and operations. By using our resources for your exam prep, you can systematically build the confidence needed to succeed. Passing this certification exam serves as a professional endorsement of your ability to design and implement robust DevOps solutions in a real-world environment.

To get the most out of these practice questions, avoid simply reading the correct answer and moving on to the next item. Instead, engage deeply with the AI Tutor explanation to understand the underlying logic, and read the community discussions to see how other professionals approach the same problem. If you get a question wrong, flag it and revisit it after you have reviewed the relevant documentation to ensure you have mastered the concept. This iterative process of testing, reviewing, and refining your knowledge is the most effective way to prepare. Browse the questions above and use the community discussions and AI Tutor to build real exam confidence.

Updated on: 27 April, 2026

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