Microsoft Power Platform Developer (PL-400) practice questions

Sample questions 9 of 85 shown

1. Q1 Create a Technical Design (10-15%)

   You are creating technical designs for several complex business processes. You need to implement custom business logic. What should you use for a requirement that needs real-time validation on a form before save?

   1. Power Automate cloud flow
   2. Business rule
   3. Synchronous plugin
   4. JavaScript client-side script

   Client-side JavaScript is the appropriate choice for real-time validation on a form before save. Business rules have limitations on complexity. Plugins run on the server, not on the client. Power Automate flows are asynchronous.
2. Q2 Create a Technical Design (10-15%)

   You need to design a technical architecture for a Power Platform solution that requires accessing data from both Dataverse and an external SQL Server database. The solution must minimize data duplication. Which approach should you recommend?

   1. Import all SQL data into Dataverse tables
   2. Use virtual tables in Dataverse that connect to the SQL Server database
   3. Create a Power Automate flow to periodically sync data
   4. Use Azure Data Factory to copy data

   Virtual tables in Dataverse allow you to access data from external sources (like SQL Server) without duplicating it. The data remains in the external source and is queried in real-time through a virtual entity data provider.
3. Q3 Create a Technical Design (10-15%)

   You need to design the authentication strategy for a custom connector that connects to an Azure-hosted API. The API is protected by Microsoft Entra ID and is a single-tenant application. Which authentication type should you use in the custom connector?

   1. No authentication
   2. API Key
   3. OAuth 2.0
   4. Basic authentication

   OAuth 2.0 with Microsoft Entra ID is the recommended authentication type for Azure-hosted APIs. The single-tenant application registration provides secure authentication through token-based access.
4. Q4 Create a Technical Design (10-15%)

   You are designing a solution for a canvas app that must support offline scenarios. Users need to continue using the app when disconnected from the network. Which approach should you consider?

   1. Use Dataverse as the data source with offline sync enabled
   2. Use SharePoint lists as the data source
   3. Use Azure SQL Database with Always On
   4. Store all data in local collections

   Dataverse supports offline synchronization through the mobile offline feature. When using Dataverse as a data source with offline configuration, the app can operate without connectivity and sync changes when the connection is restored.
5. Q5 Create a Technical Design (10-15%)

   You are designing a Power Platform solution for a medical practice. You create a custom table named Doctors. You must be able to attach PDF files to each doctor's record. What should you configure?

   1. Create a Power Automate flow to add attachments
   2. Navigate to Table options and enable attachments
   3. Navigate to Column options and enable attachments
   4. Create relationships between the Doctor table and the Notes table

   Attachments are enabled at the table level in Dataverse. When attachments are enabled on a table, users can add file attachments (including PDFs) to individual rows. This is configured in the table's options.
6. Q6 Create a Technical Design (10-15%)

   You need to design a Dataverse table to store IoT sensor readings that are written at high frequency. The table is expected to contain billions of records over time, primarily appended data. Query performance for time-series analysis is critical. Which table type should you create?

   1. Standard table
   2. Virtual table
   3. Elastic table
   4. Activity table

   Elastic tables in Dataverse are designed for high-volume, append-only scenarios like IoT telemetry. They support billions of records, are optimized for time-series queries, and provide a different storage model than standard tables.
7. Q7 Create a Technical Design (10-15%)

   You need to design a strategy for a Power Platform solution that uses two managed solutions sharing components. The development team needs to isolated environments and changes must not interfere. How should you import the solutions?

   1. Import both solutions as managed
   2. Import SolutionA as unmanaged and SolutionB as managed
   3. Import both solutions as unmanaged
   4. Create a single solution containing all components

   When components are shared between solutions, working in unmanaged layers is necessary for customization. Importing SolutionA as unmanaged (for active development) and SolutionB as managed provides the correct layering while allowing development on SolutionA.
8. Q8 Create a Technical Design (10-15%)

   You need to design a business process flow that includes six custom entities and four stages for each entity. One stage will have 15 steps. What is the flaw in this design?

   1. The maximum number of custom entities has been exceeded
   2. The maximum number of steps for a stage has been exceeded
   3. The maximum number of stages for an entity has been exceeded
   4. The minimum number of stages for an entity has not been met

   In a business process flow, the maximum number of stages per entity is limited to 10. Having four stages for each of six entities would exceed this limit for some entities. Each entity within a business process flow can have a maximum of 10 stages.
9. Q9 Create a Technical Design (10-15%)

   You need to implement a business process flow that orchestrates several approvals and system updates over several days. The process must maintain state and be resilient to system restarts. You want to call this process from a canvas app and get a final status update. Which components should you use? (Select two)

   1. A standard Power Automate cloud flow with multiple approval actions
   2. An Azure Logic App with a webhook trigger
   3. An Azure Durable Function for orchestration logic
   4. A synchronous Dataverse plugin
   5. A custom connector that invokes the Durable Function

   Azure Durable Functions (C) support long-running orchestrations with state management and resilience. A custom connector (E) can invoke the Durable Function from a canvas app, allowing the app to call the orchestration and receive status updates. Standard cloud flows may timeout for multi-day processes.

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