Microsoft PL-400 Exam Practice Questions, practice question pack
MICROSOFT · PL-400

Microsoft PL-400 Exam Practice Questions

429 questionsPDF by emailUpdated September 2026

US$39

Try 10 questions free

Card, Apple Pay or Google Pay. Your PDF is sent by email as soon as you check out.

Pass or your money backFail the exam after using this pack and we refund it. How the guarantee works
Category:
TRY BEFORE YOU BUY

Three of the 429 questions in this pack

Question 1

A company manages capital equipment for an electric utility company. The company has a SQL Server database that contains maintenance records for the equipment. Technicians who service the equipment use the Dynamics 365 Field Service mobile app on tablet devices to view scheduled assignments. Technicians use a canvas app to display the maintenance history for each piece of equipment and update the history. Managers use a Power BI dashboard that displays Dynamics 365 Field Service and real- time maintenance data. Due to increasing demand, managers must be able to work in the field as technicians. You need to design a solution that allows the managers to work from one single screen. What should you do?

  1. Add the maintenance history app to the Field Service Mobile app.
  2. Add the manager Power BI dashboard to the Field Service mobile app.
  3. Create a new maintenance canvas app from within the Power BI management dashboard.
  4. Add the maintenance history app to the Power BI dashboard.
Show answer and explanation

Correct answer: D. Add the maintenance history app to the Power BI dashboard.

dashboard. The managers' starting point is the Power BI dashboard that already blends Field Service and real-time maintenance data. Using the Power Apps visual, the existing maintenance history canvas app can be embedded directly into that dashboard, so managers view analytics and update maintenance records from one screen. This reuses both existing components and needs no rebuild of either the app or the dashboard.

Why the other options are wrong

  • A. Placing the maintenance history app in Field Service Mobile still leaves the management analytics on a separate screen.
  • B. The Field Service mobile app is built around technician scheduling and task lists and is not the surface for hosting the management dashboard, so managers would still switch contexts.
  • C. Building a new canvas app from the dashboard duplicates an app that already exists and does not integrate the current solution.

Question 2

A company has an application that provides API access. You plan to connect to the API from a canvas app by using a custom connector. You need to request information from the API developers so that you can create the custom connector. Which two types of files can you use? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

  1. YAML
  2. WSDL
  3. OpenAPI definition
  4. Postman collection
Show answer and explanation

Correct answer: C, D

C. OpenAPI definition D. Postman collection Custom connectors can be created using two standard API specification formats: OpenAPI definitions (formerly Swagger) and Postman collections. Both formats provide the necessary metadata and endpoint descriptions required to establish API connections in Power Apps.

Why the other options are wrong

  • A. YAML is a configuration language format but is not a supported specification type for creating custom connectors.
  • B. WSDL is a SOAP-based service description format, not supported for custom connector creation in Power Apps which focus on REST APIs.

Question 3

You plan to create a canvas app to manage large sets of records. Users will filter and sort the data. You must implement delegation in the canvas app to mitigate potential performance issues. You need to recommend data sources for the app. Which two data sources should you recommend? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

  1. SQL Server
  2. Common Data Service
  3. Azure Data Factory
  4. Azure Table Storage
Show answer and explanation

Correct answer: A, B

A. SQL Server B. Common Data Service SQL Server and Common Data Service both support delegation, allowing Power Apps to push filter and sort operations to the data source rather than loading all records into memory. This enables canvas apps to handle large datasets efficiently without performance degradation.

Why the other options are wrong

  • C. Azure Data Factory is an ETL/orchestration service, not designed as a canvas app data source and does not support delegation.
  • D. Azure Table Storage does not support delegation in Power Apps; filtering and sorting would require client-side processing of all records.

See all 10 free questions Get the full pack, US$39

429 practice questions for Power Platform Developer (PL-400), with full explanations.

Every question comes with the correct answer, the reasoning behind it, and a short note on why each wrong option is wrong. Work through it once with the answers, then again with the questions-only copy under exam conditions.

  • 429 questions mapped to the PL-400 exam objectives
  • Answers and explanations for every question, including the wrong options
  • A questions-only PDF for timed practice runs
  • Instant delivery by email the moment you check out
  • Free monthly updates for as long as the exam is live
  • Pass or your money back

A PL-400 attempt costs US$165 in the US. This pack is US$39, paid once.

Try 10 questions free before you buy.

Last updated September 2026 · 429 questions

What makes the PL-400 hard

PL-400 sits in the awkward gap between low-code and pro-code, and it tests both sides hard, which is exactly why makers and .NET developers each fail it from their own direction.

The pro-code half is Dataverse internals: plug-in stages and execution pipeline, when a plug-in beats a Power Automate flow, the Web API versus the organisation service, and PCF component development. The low-code half expects fluent decisions between canvas and model-driven patterns, business rules versus classic workflows versus flows, and solution layering: managed versus unmanaged, and what actually happens on import.

One domain dominates: Extend the platform is 30 to 35% of the exam, while the other five domains sit at 10 to 15% each. Makers who have never written a plug-in tend to lose the exam in that single domain.

With PL-500 and PL-600 retired, PL-400 is the last developer-grade Power Platform credential standing.

About the exam

PL-400 certifies designing, developing and deploying Power Platform solutions: Dataverse extensibility, plug-ins, custom connectors, PCF components, and integration with Azure. Skills measured as of 19 March 2026. Renews annually via a free online assessment.

Exam domains

  • Create a technical design: 10 to 15%
  • Build Power Platform solutions: 10 to 15%
  • Implement Power Apps improvements: 10 to 15%
  • Extend the user experience: 10 to 15%
  • Extend the platform: 30 to 35%
  • Develop integrations: 10 to 15%

Around 40 to 60 questions, 100 minutes, passing score 700 out of 1000, US$165 in the US, priced by local currency elsewhere, online proctored or test centre, renews annually for free.

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Questions before you buy

What do I get when I buy the Microsoft PL-400 pack?

429 practice questions as a PDF, each with the correct answer, a full explanation and a note on why the other options are wrong, plus a separate questions-only PDF for timed practice.

How quickly do I receive it?

Your PDF is prepared and sent to your email address after checkout, and you get a confirmation as soon as it is on its way.

Is there a free sample?

Yes. Ten questions from this pack, with answers and explanations, are free on this page and as a PDF, so you can judge the quality before you pay.

Are updates included?

Yes. The pack is updated every month for as long as the exam is live, and updates are free for everyone who has bought it.

What if I fail the exam?

We refund the pack. Sit the exam 7 to 30 days after buying, then send your official score report within 7 days of the exam date, as set out in the refund policy.

Can I share it with colleagues?

Each purchase is licensed to one person. For a team, school or training organisation, email support@certstash.com for a licence that fits.

Related products