CompTIA Online Training

Exam AZ-400 Designing and Implementing Microsoft DevOps Solutions update version

August 28, 2021 by admin

The content of this exam was updated on May 25, 2021. Please download the skills measured document below to see what changed.
Languages: English, Japanese, Chinese (Simplified), Korean
Retirement date: none

This exam measures your ability to accomplish the following technical tasks: develop an instrumentation strategy; develop a Site Reliability Engineering (SRE) strategy; develop a security and compliance plan; manage source control; facilitate communication and collaboration; define and implement continuous integration; and define and implement a continuous delivery and release management strategy.

Skills measured
The content of this exam was updated on May 25, 2021. Please download the exam skills outline below to see what changed.
Develop an instrumentation strategy (5-10%)
Develop a Site Reliability Engineering (SRE) strategy (5-10%)
Develop a security and compliance plan (10-15%)
Manage source control (10-15%)
Facilitate communication and collaboration (10-15%)
Define and implement continuous integration (20-25%)
Define and implement a continuous delivery and release management strategy (10-15%)

Audience Profile
Candidates for this exam should have subject matter expertise working with people, processes, and technologies to continuously deliver business value.
Responsibilities for this role include designing and implementing strategies for collaboration, code, infrastructure, source control, security, compliance, continuous integration, testing, delivery, monitoring, and feedback.
A candidate for this exam must be familiar with both Azure administration and development and must be expert in at least one of these areas.

Skills Measured
NOTE: The bullets that appear below each of the skills measured are intended to illustrate how we are assessing that skill. This list is NOT definitive or exhaustive.
NOTE: Most questions cover features that are General Availability (GA). The exam may contain questions on Preview features if those features are commonly used.

Develop an Instrumentation Strategy (5-10%)
Design and implement logging
 assess and configure a log framework
 design a log aggregation and storage strategy (e.g., Azure storage)
 design a log aggregation and query strategy using (e.g., Azure Monitor, Splunk)
 manage access control to logs (workspace-centric/resource-centric)
 integrate crash analytics (App Center Crashes, Crashlytics)

Design and implement telemetry
 design and implement distributed tracing
 inspect application performance indicators
 inspect infrastructure performance indicators
 define and measure key metrics (CPU, memory, disk, network)
 implement alerts on key metrics (email, SMS, webhooks, Teams/Slack)
 integrate user analytics (e.g., Application Insights funnels, Visual Studio App Center, TestFlight, Google Analytics)

Integrate logging and monitoring solutions
 configure and integrate container monitoring (Azure Monitor, Prometheus, etc.)
 configure and integrate with monitoring tools (Azure Monitor Application Insights, Dynatrace, New Relic, Naggios, Zabbix)
 create feedback loop from platform monitoring tools (e.g., Azure Diagnostics extension, Log Analytics agent, Azure Platform Logs, Event Grid)
 manage Access control to the monitoring platform

Develop a Site Reliability Engineering (SRE) strategy (5-10%)

Develop an actionable alerting strategy
 identify and recommend metrics on which to base alerts
 implement alerts using appropriate metrics
 implement alerts based on appropriate log messages
 implement alerts based on application health checks
 analyze combinations of metrics
 develop communication mechanism to notify users of degraded systems
 implement alerts for self-healing activities (e.g., scaling, failovers)

Design a failure prediction strategy
 analyze behavior of system with regards to load and failure conditions
 calculate when a system will fail under various conditions
 measure baseline metrics for system
 leverage Application Insights Smart Detection and Dynamic thresholds in Azure Monitor

Design and implement a health check
 analyze system dependencies to determine which dependency should be included in health check
 calculate healthy response timeouts based on SLO for the service
 design approach for partial health situations
 design approach for piecemeal recovery (e.g., to improve recovery time objective strategies)
 integrate health check with compute environment
 implement different types of health checks (container liveness, startup, shutdown)

Develop a security and compliance plan (10-15%)
Design an authentication and authorization strategy
 design an access solution (Azure AD Privileged Identity Management (PIM), Azure AD Conditional Access, MFA, Azure AD B2B, etc.)
 implement Service Principals and Managed Identity
 design an application access solution using Azure AD B2C
 configure service connections

Design a sensitive information management strategy
 evaluate and configure vault solution (Azure Key Vault, Hashicorp Vault)
 manage security certificates
 design a secrets storage and retrieval strategy (KeyVault secrets, GitHub secrets, Azure Pipelines secrets)
 formulate a plan for deploying secret files as part of a release

Develop security and compliance
 automate dependencies scanning for security (container scanning, OWASP)
 automate dependencies scanning for compliance (licenses: MIT, GPL)
 assess and report risks
 design a source code compliance solution (e.g., GitHub Code scanning, GitHub Secret scanning, pipeline-based scans, Git hooks, SonarQube, Dependabot, etc.)

Design governance enforcement mechanisms
 implement Azure policies to enforce organizational requirements
 implement container scanning (e.g., static scanning, malware, crypto mining)
 design and implement Azure Container Registry Tasks
 design break-the-glass strategy for responding to security incidents

Manage source control (10-15%)
Develop a modern source control strategy
 integrate/migrate disparate source control systems (e.g., GitHub, Azure Repos)
 design authentication strategies
 design approach for managing large binary files (e.g., Git LFS)
 design approach for cross repository sharing (e.g., Git sub-modules, packages)
 implement workflow hooks
 design approach for efficient code reviews (e.g., GitHub code review assignments, schedule reminders, Pull Analytics)

Plan and implement branching strategies for the source code
 define Pull Requests (PR) guidelines to enforce work item correlation
 implement branch merging restrictions (e.g., branch policies, branch protections, manual, etc.)
 define branch strategy (e.g., trunk based, feature branch, release branch, GitHub flow)
 design and implement a PR workflow (code reviews, approvals)
 enforce static code analysis for code-quality consistency on PR

Configure repositories
 configure permissions in the source control repository
 organize the repository with git-tags
 plan for handling oversized repositories
 plan for content recovery in all repository states
 purge data from source control

Integrate source control with tools
 integrate GitHub with DevOps pipelines
 integrate GitHub with identity management solutions (Azure AD)
 design for GitOps
 design for ChatOps
 integrate source control artifacts for human consumption (e.g., Git changelog)
 integrate GitHub Codespaces

Facilitate communication and collaboration (10-15%)
Communicate deployment and release information with business stakeholders
 create dashboards combining boards, pipelines (custom dashboards on Azure DevOps)
 design a cost management communication strategy
 integrate release pipeline with work item tracking (e.g., AZ DevOps, Jira, ServiceNow)
 integrate GitHub as repository with Azure Boards
 communicate user analytics

Generate DevOps process documentation
 design onboarding process for new employees
 assess and document external dependencies (e.g., integrations, packages)
 assess and document artifacts (version, release notes)

Automate communication with team members
 integrate monitoring tools with communication platforms (e.g., Teams, Slack, dashboards)
 notify stakeholders about key metrics, alerts, severity using communication and project management platforms (e.g., Email, SMS, Slack, Teams, ServiceNow, etc.)
 integrate build and release with communication platforms (e.g., build fails, release fails)
 integrate GitHub pull request approvals via mobile apps

Define and implement continuous integration (20-25%)
Design build automation
 integrate the build pipeline with external tools (e.g., Dependency and security scanning, Code coverage)
 implement quality gates (e.g., code coverage, internationalization, peer review)
 design a testing strategy (e.g., integration, load, fuzz, API, chaos)
 integrate multiple tools (e.g., GitHub Actions, Azure Pipeline, Jenkins)

Design a package management strategy
 recommend package management tools (e.g., GitHub Packages, Azure Artifacts, Azure Automation Runbooks Gallery, Nuget, Jfrog, Artifactory)
 design an Azure Artifacts implementation including linked feeds
 design versioning strategy for code assets (e.g., SemVer, date based)
 plan for assessing and updating and reporting package dependencies (GitHub

Automated Security Updates, NuKeeper, GreenKeeper)
 design a versioning strategy for packages (e.g., SemVer, date based)
 design a versioning strategy for deployment artifacts Design an application infrastructure management strategy
 assess a configuration management mechanism for application infrastructure
 define and enforce desired state configuration for environments Implement a build strategy
 design and implement build agent infrastructure (include cost, tool selection, licenses, maintainability)
 develop and implement build trigger rules
 develop build pipelines
 design build orchestration (products that are composed of multiple builds)
 integrate configuration into build process
 develop complex build scenarios (e.g., containerized agents, hybrid, GPU) Maintain build strategy
 monitor pipeline health (failure rate, duration, flaky tests)
 optimize build (cost, time, performance, reliability)
 analyze CI load to determine build agent configuration and capacity

Design a process for standardizing builds across organization
 manage self-hosted build agents (VM templates, containerization, etc.)
 create reuseable build subsystems (YAML templates, Task Groups, Variable Groups, etc.)

Define and implement a continuous delivery and release management strategy (10-15%)

Develop deployment scripts and templates
 recommend a deployment solution (e.g., GitHub Actions, Azure Pipelines, Jenkins, CircleCI, etc.)
 design and implement Infrastructure as code (ARM, Terraform, PowerShell, CLI)
 develop application deployment process (container, binary, scripts)
 develop database deployment process (migrations, data movement, ETL)
 integrate configuration management as part of the release process
 develop complex deployments (IoT, Azure IoT Edge, mobile, App Center, DR, multiregion, CDN, sovereign cloud, Azure Stack, etc.)

Implement an orchestration automation solution
 combine release targets depending on release deliverable (e.g., Infrastructure, code, assets, etc.)
 design the release pipeline to ensure reliable order of dependency deployments
 organize shared release configurations and process (YAML templates, variable groups, Azure App Configuration)
 design and implement release gates and approval processes

Plan the deployment environment strategy
 design a release strategy (blue/green, canary, ring)
 implement the release strategy (using deployment slots, load balancer configurations, Azure Traffic Manager, feature toggle, etc.)
 select the appropriate desired state solution for a deployment environment (PowerShell DSC, Chef, Puppet, etc.)
 plan for minimizing downtime during deployments (VIP Swap, Load balancer, rolling deployments, etc.)
 design a hotfix path plan for responding to high priority code fixes

QUESTION 1
You manage an Azure web app that supports an e-commerce website.
You need to increase the logging level when the web app exceeds normal usage patterns. The solution must minimize administrative overhead.
Which two resources should you include in the solution? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. an Azure Automation runbook
B. an Azure Monitor alert that has a dynamic threshold
C. an Azure Monitor alert that has a static threshold
D. the Azure Monitor autoscale settings
E. an Azure Monitor alert that uses an action group that has an email action

Correct Answer: AB

QUESTION 2
You have a build pipeline in Azure Pipelines that occasionally fails.
You discover that a test measuring the response time of an API endpoint causes the failures.
You need to prevent the build pipeline from failing due to the test.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. Set Flaky test detection to Off.
B. Clear Flaky tests included in test pass percentage.
C. Enable Test Impact Analysis (TIA).
D. Manually mark the test as flaky.
E. Enable test slicing.

Correct Answer: BD

QUESTION 3
You have a GitHub repository.
You create a new repository in Azure DevOps.
You need to recommend a procedure to clone the repository from GitHub to Azure DevOps.
What should you recommend?

A. Create a pull request.
B. Create a webhook.
C. Create a service connection for GitHub.
D. From Import a Git repository, click Import.
E. Create a personal access token in Azure DevOps.

Correct Answer: D

QUESTION 4
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 use Azure Pipelines to build and test a React.js application.
You have a pipeline that has a single job.
You discover that installing JavaScript packages from npm takes approximately five minutes each time you run the pipeline.
You need to recommend a solution to reduce the pipeline execution time.
Solution: You recommend defining a container job that uses a custom container that has the JavaScript
packages preinstalled.
Does this meet the goal?

A. Yes
B. No

Correct Answer: B

QUESTION 5
Your company uses Azure Artifacts for package management.
You need to configure an upstream source in Azure Artifacts for Python packages.
Which repository type should you use as an upstream source?

A. npmjs.org
B. PyPI
C. Maven Central
D. third-party trusted Python

Correct Answer: B

QUESTION 6
You have an Azure DevOps project that contains a release pipeline and a Git repository.
When a new code revision is committed to the repository, a build and release is triggered.
You need to ensure that release information for the pipeline is added automatically to the work items associated to the Git commit.
What should you do?

A. Modify the Integrations options for the pipeline.
B. Modify the post-deployment conditions for the last stage of the pipeline.
C. Add an agentless job to the pipeline.
D. Modify the service hooks for the project.

Correct Answer: B

Examkingdom Microsoft AZ-400 Exam pdf, Certkingdom Microsoft AZ-400 PDF

Best Microsoft AZ-400 Certification, Microsoft AZ-400 Training at certkingdom.com