{"id":12505,"date":"2026-09-15T10:01:41","date_gmt":"2026-09-15T10:01:41","guid":{"rendered":"https:\/\/www.examlabs.com\/certification\/?p=12505"},"modified":"2026-09-15T10:01:41","modified_gmt":"2026-09-15T10:01:41","slug":"microsoft-az-400-practice-test-questions-and-exam-dumps-part1-q1-20","status":"publish","type":"post","link":"https:\/\/www.examlabs.com\/certification\/microsoft-az-400-practice-test-questions-and-exam-dumps-part1-q1-20\/","title":{"rendered":"Microsoft AZ-400 Practice Test Questions and Exam Dumps Part1 Q1-20"},"content":{"rendered":"

View Full Microsoft AZ-400 Exam Dumps<\/a> and Practice Test Dumps<\/b><\/p>\n

 <\/p>\n

Q1. Which Azure DevOps service provides version control for source code?<\/b><\/h3>\n

1)<\/b> Azure Repos<\/span>
\n<\/span> 2)<\/b> Azure Boards<\/span>
\n<\/span> 3)<\/b> Azure Test Plans<\/span>
\n<\/span> 4)<\/b> Azure Pipelines<\/span><\/p>\n

Correct Answer: 1)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Azure Repos provides version control capabilities for managing source code and other development files. It supports Git repositories and enables development teams to collaborate on code, track changes, review contributions, and maintain different branches. Developers can commit changes, create pull requests, resolve conflicts, and review code before merging it into shared branches. Azure Repos integrates with other Azure DevOps services, allowing source control to participate in automated build, testing, and deployment workflows. Using version control also provides a history of changes, making it easier to identify when changes were introduced and restore earlier versions when necessary. This makes Azure Repos an important component of DevOps practices.<\/span><\/p>\n

Q2. Which Azure DevOps service is primarily used to create and manage CI\/CD pipelines?<\/b><\/h3>\n

1)<\/b> Azure Boards<\/span>
\n<\/span> 2)<\/b> Azure Pipelines<\/span>
\n<\/span> 3)<\/b> Azure Repos<\/span>
\n<\/span> 4)<\/b> Azure Artifacts<\/span><\/p>\n

Correct Answer: 2)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Azure Pipelines is designed to automate continuous integration and continuous delivery workflows. It can automatically build source code, execute tests, package applications, and deploy them to different environments. Pipelines can be triggered by source code changes, schedules, or other events. They can also include approvals, deployment strategies, variables, environments, and reusable templates. Azure Pipelines supports multiple programming languages and deployment targets, including Azure services and other platforms. By automating repetitive build and deployment activities, teams can deliver software more consistently and reduce manual errors. Azure Pipelines therefore plays a central role in implementing CI\/CD practices within Azure DevOps.<\/span><\/p>\n

Q3. What is the primary purpose of Azure Boards?<\/b><\/h3>\n

1)<\/b> Hosting container images<\/span>
\n<\/span> 2)<\/b> Managing source code repositories<\/span>
\n<\/span> 3)<\/b> Planning and tracking work<\/span>
\n<\/span> 4)<\/b> Managing deployment environments<\/span><\/p>\n

Correct Answer: 3)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Azure Boards provides tools for planning, tracking, and discussing development work. Teams can use work items such as epics, features, user stories, tasks, bugs, and issues to organize project activities. Azure Boards also provides backlogs, boards, dashboards, and queries that help teams visualize progress and manage priorities. Agile teams can use these capabilities to plan iterations, assign work, monitor status, and maintain visibility across development activities. Azure Boards is different from Azure Repos, which handles source control, and Azure Pipelines, which automates builds and deployments. Together, these services can support an integrated DevOps workflow from planning through delivery.<\/span><\/p>\n

Q4. Which practice helps developers integrate code changes frequently into a shared repository?<\/b><\/h3>\n

1)<\/b> Continuous integration<\/span>
\n<\/span> 2)<\/b> Continuous deployment<\/span>
\n<\/span> 3)<\/b> Infrastructure monitoring<\/span>
\n<\/span> 4)<\/b> Release approval<\/span><\/p>\n

Correct Answer: 1)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Continuous integration encourages developers to integrate their code changes frequently into a shared repository. Each integration can trigger automated builds and tests to detect problems early. This approach reduces the risk of large, difficult-to-integrate changes accumulating over time. Automated validation provides rapid feedback to developers and helps maintain the quality of the codebase. In Azure DevOps, Azure Pipelines can be configured to build applications and execute automated tests whenever changes are committed. Continuous integration is therefore an important DevOps practice because it promotes frequent integration, early defect detection, and faster feedback throughout the software development lifecycle.<\/span><\/p>\n

Q5. What is the main purpose of a pull request in Azure Repos?<\/b><\/h3>\n

1)<\/b> To automatically delete a branch<\/span>
\n<\/span> 2)<\/b> To review and discuss code changes before merging<\/span>
\n<\/span> 3)<\/b> To create a production environment<\/span>
\n<\/span> 4)<\/b> To store build artifacts<\/span><\/p>\n

Correct Answer: 2)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

A pull request provides a structured process for reviewing proposed code changes before they are merged into a target branch. Developers can inspect the changes, add comments, discuss implementation details, and identify potential issues. Branch policies can also require successful builds, tests, approvals, or other conditions before the pull request can be completed. This helps teams maintain code quality and reduce the chance of problematic changes reaching important branches. Pull requests also improve collaboration because developers can share knowledge and receive feedback from other team members. In a DevOps workflow, pull requests provide an important quality and collaboration control around source code changes.<\/span><\/p>\n

Q6. Which branching strategy commonly uses a main branch and short-lived feature branches?<\/b><\/h3>\n

1)<\/b> Git-based branching<\/span>
\n<\/span> 2)<\/b> Database replication<\/span>
\n<\/span> 3)<\/b> Infrastructure scaling<\/span>
\n<\/span> 4)<\/b> Artifact versioning<\/span><\/p>\n

Correct Answer: 1)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

A Git-based branching approach commonly allows developers to create short-lived feature branches from a main branch. Developers make and test their changes within the feature branch and then create a pull request to merge those changes into the main branch. This approach supports parallel development while keeping unfinished work isolated from the primary codebase. Teams can combine branching with automated builds, testing, and branch policies to improve quality. Short-lived branches can also reduce merge complexity compared with maintaining long-running branches. The exact branching model may vary between organizations, but Git provides the underlying capabilities for creating and managing these branches.<\/span><\/p>\n

Q7. Which Azure DevOps feature can enforce requirements before a pull request is completed?<\/b><\/h3>\n

1)<\/b> Branch policies<\/span>
\n<\/span> 2)<\/b> Work item queries<\/span>
\n<\/span> 3)<\/b> Dashboards<\/span>
\n<\/span> 4)<\/b> Agent pools<\/span><\/p>\n

Correct Answer: 1)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Branch policies allow organizations to define rules that must be satisfied before changes can be merged into protected branches. Policies can require reviewers, successful builds, linked work items, comment resolution, or other conditions depending on the configuration. These controls help teams maintain quality and consistency in important branches such as the main or production branch. For example, a team can require a successful automated build before a pull request can be completed. Branch policies therefore provide governance around source code changes without preventing developers from working independently in their own branches. They are particularly useful when combined with pull requests and automated validation.<\/span><\/p>\n

Q8. What is the primary goal of continuous delivery?<\/b><\/h3>\n

1)<\/b> Prevent all software releases<\/span>
\n<\/span> 2)<\/b> Keep software in a releasable state through automated processes<\/span>
\n<\/span> 3)<\/b> Eliminate source control<\/span>
\n<\/span> 4)<\/b> Replace automated testing<\/span><\/p>\n

Correct Answer: 2)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Continuous delivery aims to keep software in a releasable state by automating as much of the build, testing, packaging, and deployment process as practical. Changes are frequently integrated and validated so that a reliable version of the application can be released when the organization decides to do so. Continuous delivery does not necessarily mean that every successful change is automatically released to production. Instead, it emphasizes having a repeatable and dependable delivery process. Automated testing, deployment automation, environment management, and consistent configuration all contribute to this goal. This approach helps organizations reduce release risk and make software delivery more predictable.<\/span><\/p>\n

Q9. Which Azure DevOps service is designed to store and manage packages such as NuGet, npm, Maven, and Python packages?<\/b><\/h3>\n

1)<\/b> Azure Boards<\/span>
\n<\/span> 2)<\/b> Azure Repos<\/span>
\n<\/span> 3)<\/b> Azure Artifacts<\/span>
\n<\/span> 4)<\/b> Azure Test Plans<\/span><\/p>\n

Correct Answer: 3)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Azure Artifacts provides package management capabilities for development teams. It can host and manage packages from supported package ecosystems such as NuGet, npm, Maven, and Python. Teams can publish their own packages and consume packages as dependencies within applications and build processes. Azure Artifacts can also help organizations manage package versions and control how dependencies are shared across projects. Centralized package management improves consistency and reduces the need for teams to maintain separate package repositories. When integrated with Azure Pipelines and source control, Azure Artifacts can become part of an automated software delivery workflow that builds, tests, packages, and deploys applications.<\/span><\/p>\n

Q10. What is the purpose of automated testing in a CI\/CD pipeline?<\/b><\/h3>\n

1)<\/b> To increase manual deployment work<\/span>
\n<\/span> 2)<\/b> To identify defects and regressions quickly<\/span>
\n<\/span> 3)<\/b> To remove version control<\/span>
\n<\/span> 4)<\/b> To prevent developers from committing code<\/span><\/p>\n

Correct Answer: 2)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Automated testing helps identify defects and regressions quickly whenever changes are introduced into the application. Tests can be executed automatically as part of a CI\/CD pipeline, providing rapid feedback to developers. Depending on the application, automated testing can include unit tests, integration tests, functional tests, security tests, and other validation activities. Early detection reduces the cost and effort required to correct defects because problems can often be addressed before changes reach later environments. Automated testing also provides repeatability and reduces reliance on manual validation. For effective DevOps practices, tests should be appropriate to the application and integrated into the delivery workflow.<\/span><\/p>\n

Q11. Which deployment strategy gradually moves users or traffic to a new application version?<\/b><\/h3>\n

1)<\/b> Blue-green deployment<\/span>
\n<\/span> 2)<\/b> Canary deployment<\/span>
\n<\/span> 3)<\/b> Big-bang deployment<\/span>
\n<\/span> 4)<\/b> Manual deployment<\/span><\/p>\n

Correct Answer: 2)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Canary deployment gradually introduces a new application version to a small subset of users or traffic before expanding the release to a larger audience. The initial group provides an opportunity to monitor application behavior, performance, errors, and user experience. If significant problems are detected, the deployment can potentially be stopped or rolled back before the new version reaches all users. If the new version performs as expected, traffic can gradually increase. This approach reduces deployment risk compared with immediately releasing a new version to everyone. Canary deployments are particularly useful when teams want real-world validation while limiting the potential impact of problems.<\/span><\/p>\n

Q12. Which deployment strategy maintains two environments so that traffic can be switched between application versions?<\/b><\/h3>\n

1)<\/b> Canary deployment<\/span>
\n<\/span> 2)<\/b> Blue-green deployment<\/span>
\n<\/span> 3)<\/b> Rolling code review<\/span>
\n<\/span> 4)<\/b> Feature branching<\/span><\/p>\n

Correct Answer: 2)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Blue-green deployment uses two environments that represent different versions of an application. One environment hosts the currently active version, while the other can host the new version. The new version is deployed and validated in the inactive environment before traffic is switched to it. If the deployment is successful, the new environment becomes active. If serious problems occur, traffic can potentially be switched back to the previous environment, making rollback faster. This approach can reduce downtime and deployment risk, although maintaining two environments may increase resource requirements. Blue-green deployment is useful when predictable switching between application versions is important.<\/span><\/p>\n

Q13. What is Infrastructure as Code primarily used for?<\/b><\/h3>\n

1)<\/b> Manually configuring every server<\/span>
\n<\/span> 2)<\/b> Defining and managing infrastructure through code or declarative configuration<\/span>
\n<\/span> 3)<\/b> Writing application documentation<\/span>
\n<\/span> 4)<\/b> Replacing source control<\/span><\/p>\n

Correct Answer: 2)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Infrastructure as Code, commonly called IaC, allows infrastructure to be defined and managed using code or declarative configuration files. Instead of manually creating resources and configuring environments, teams can describe the desired infrastructure and use automation to deploy it consistently. IaC improves repeatability, reduces configuration errors, and allows infrastructure definitions to be version controlled. It also makes it easier to reproduce environments for development, testing, staging, and production. Technologies such as Azure Resource Manager templates, Bicep, Terraform, and other tools can support infrastructure automation. IaC is an important DevOps practice because it treats infrastructure configuration as manageable, reviewable, and repeatable code.<\/span><\/p>\n

Q14. Which Azure service provides hosted Git repositories and integrates with Azure DevOps workflows?<\/b><\/h3>\n

1)<\/b> Azure Repos<\/span>
\n<\/span> 2)<\/b> Azure Monitor<\/span>
\n<\/span> 3)<\/b> Azure Functions<\/span>
\n<\/span> 4)<\/b> Azure Key Vault<\/span><\/p>\n

Correct Answer: 1)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Azure Repos provides hosted Git repositories that teams can use to store and manage application source code. Developers can create branches, commit changes, review pull requests, manage permissions, and maintain a complete history of code changes. Azure Repos integrates with Azure Pipelines, allowing source code changes to trigger automated builds and tests. It can also integrate with work items and other Azure DevOps capabilities, providing traceability from requirements through implementation and delivery. By providing centralized source control, Azure Repos supports collaboration and helps teams manage changes in a controlled manner throughout the software development lifecycle.<\/span><\/p>\n

Q15. Which concept allows application functionality to be enabled or disabled without deploying different code versions?<\/b><\/h3>\n

1)<\/b> Feature flags<\/span>
\n<\/span> 2)<\/b> Branch policies<\/span>
\n<\/span> 3)<\/b> Build agents<\/span>
\n<\/span> 4)<\/b> Package feeds<\/span><\/p>\n

Correct Answer: 1)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Feature flags allow teams to control whether specific application functionality is enabled without necessarily deploying a completely different application version. A feature can be enabled for selected users, groups, environments, or percentages of traffic depending on the implementation. This can support gradual releases, experimentation, testing, and safer deployments. Feature flags can also allow teams to disable problematic functionality quickly without performing a full rollback. However, unused or outdated flags should be managed carefully because excessive feature flags can increase application complexity. When used effectively, feature flags provide teams with greater control over how and when new functionality becomes available to users.<\/span><\/p>\n

Q16. What is the purpose of a build agent in Azure Pipelines?<\/b><\/h3>\n

1)<\/b> To store user passwords<\/span>
\n<\/span> 2)<\/b> To execute pipeline jobs and tasks<\/span>
\n<\/span> 3)<\/b> To create Azure subscriptions<\/span>
\n<\/span> 4)<\/b> To replace source repositories<\/span><\/p>\n

Correct Answer: 2)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

A build agent is a computing resource that executes the jobs and tasks defined in an Azure Pipeline. Depending on the pipeline configuration, an agent can compile source code, run automated tests, create packages, execute scripts, and perform other build or deployment operations. Microsoft-hosted agents provide managed environments, while self-hosted agents can be maintained by an organization when greater control over the environment is required. Agent capabilities and installed software can affect which jobs an agent can execute. Using agents allows pipeline definitions to be executed consistently and automatically, supporting repeatable CI\/CD workflows across development and deployment processes.<\/span><\/p>\n

Q17. Which practice helps organizations monitor applications and infrastructure after deployment?<\/b><\/h3>\n

1)<\/b> Monitoring and observability<\/span>
\n<\/span> 2)<\/b> Source branching<\/span>
\n<\/span> 3)<\/b> Package restoration<\/span>
\n<\/span> 4)<\/b> Code merging<\/span><\/p>\n

Correct Answer: 1)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Monitoring and observability help teams understand the health, performance, and behavior of applications and infrastructure after deployment. Metrics, logs, traces, alerts, and other telemetry can provide information about system performance and user-impacting problems. Effective monitoring allows teams to detect issues quickly and investigate their causes using relevant operational data. Observability extends this capability by helping teams understand internal system behavior from available telemetry. In a DevOps environment, monitoring and observability support faster incident detection, troubleshooting, performance analysis, and continual improvement. They also provide feedback that can be used to evaluate whether deployments and services are meeting expectations.<\/span><\/p>\n

Q18. Which security practice helps prevent secrets such as passwords and access keys from being stored directly in source code?<\/b><\/h3>\n

1)<\/b> Secret management<\/span>
\n<\/span> 2)<\/b> Code branching<\/span>
\n<\/span> 3)<\/b> Manual testing<\/span>
\n<\/span> 4)<\/b> Work item tracking<\/span><\/p>\n

Correct Answer: 1)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Secret management protects sensitive information such as passwords, API keys, connection strings, certificates, and access tokens. Storing secrets directly in source code can expose them to developers, repositories, logs, or unauthorized users. Instead, secrets should be stored securely and accessed by applications or pipelines through controlled mechanisms. Azure Key Vault is one service that can securely store and manage secrets, keys, and certificates. Azure DevOps pipelines can also integrate with secure secret-management solutions. Proper secret management reduces the risk of credential exposure and supports DevSecOps by incorporating security controls into development and delivery processes rather than treating security as a final-stage activity.<\/span><\/p>\n

Q19. What is the main purpose of implementing DevSecOps practices?<\/b><\/h3>\n

1)<\/b> To remove security testing from development<\/span>
\n<\/span> 2)<\/b> To integrate security throughout the software delivery lifecycle<\/span>
\n<\/span> 3)<\/b> To eliminate automated deployments<\/span>
\n<\/span> 4)<\/b> To prevent collaboration between teams<\/span><\/p>\n

Correct Answer: 2)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

DevSecOps integrates security practices throughout the software development and delivery lifecycle. Instead of waiting until an application is nearly complete before performing security activities, teams incorporate security considerations into planning, coding, testing, deployment, and operations. Automated security scanning, dependency checks, secret management, access controls, and compliance validation can be included in development and pipeline workflows. This approach helps identify vulnerabilities earlier, when they are generally easier and less expensive to address. DevSecOps also encourages shared responsibility for security among development, operations, and security teams. The goal is to make secure software delivery a continuous part of the overall DevOps process.<\/span><\/p>\n

Q20. Which Azure DevOps capability can help connect development work items with source code changes?<\/b><\/h3>\n

1)<\/b> Work item integration<\/span>
\n<\/span> 2)<\/b> Azure DNS<\/span>
\n<\/span> 3)<\/b> Azure Storage<\/span>
\n<\/span> 4)<\/b> Azure Virtual Network<\/span><\/p>\n

Correct Answer: 1)<\/b><\/p>\n

Explanation:<\/b><\/p>\n

Work item integration allows development activities to be connected with source code changes and other DevOps processes. Teams can associate commits, pull requests, branches, and builds with work items such as user stories, tasks, and bugs. This provides traceability between planned work and the technical changes made to implement that work. For example, a developer can link a pull request to a work item describing a feature or defect. This relationship helps teams understand what was changed, why it was changed, and whether the associated work has been completed. Traceability also supports reporting, collaboration, and better project visibility across the development lifecycle.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

View Full Microsoft AZ-400 Exam Dumps and Practice Test Dumps   Q1. Which Azure DevOps service provides version control for source code? 1) Azure Repos 2) Azure Boards 3) Azure Test Plans 4) Azure Pipelines Correct Answer: 1) Explanation: Azure Repos provides version control capabilities for managing source code and other development files. It supports […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/12505"}],"collection":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/comments?post=12505"}],"version-history":[{"count":1,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/12505\/revisions"}],"predecessor-version":[{"id":12542,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/12505\/revisions\/12542"}],"wp:attachment":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/media?parent=12505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/categories?post=12505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/tags?post=12505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}