PL-900 Practice Test 13 — 15 Questions

Question 1

A company uses Power Apps for a field service app. They notice that the app loads slowly when users access it on mobile devices. What is the most likely cause?

Accepted Answer

The app contains large images that are not optimized. Large, unoptimized images increase the payload size that must be downloaded to the mobile device, directly impacting load times, especially over cellular networks. Power Apps loads all resources, including images, when the app starts, so oversized images cause significant delays. Optimizing images (e.g., compressing, resizing, using modern formats like WebP) reduces bandwidth usage and speeds up app loading.

Answer

The app has too many Power Automate flows

Answer

The Dataverse environment is in a different region

Answer

The app uses Microsoft Entra ID for authentication

Question 2

A non-profit organization wants to automate the process of sending thank-you emails to donors after a donation is recorded in a SharePoint list. Which Power Platform tool should they use?

Accepted Answer

Power Automate. Power Automate is the correct tool because it is designed to create automated workflows that trigger actions based on events, such as a new item being added to a SharePoint list. In this scenario, a Power Automate flow can be configured to run automatically when a donation is recorded, then send a thank-you email via an email connector (e.g., Outlook or SMTP). This directly addresses the need for process automation without manual intervention.

Answer

Power Apps

Answer

Power Virtual Agents

Answer

Power BI

Question 3

A user wants to automate sending a welcome email to new users added to Microsoft Entra ID. Which Power Automate trigger should they use?

Accepted Answer

When a user is added to Azure AD. Power Automate includes a native Microsoft Entra ID (Azure AD) connector with the trigger 'When a user is added to Microsoft Entra ID' (also surfaced as 'When a user is created' in some versions). This trigger fires when a new user object is created in the tenant, making it the correct choice for automating a welcome email to new users. The other triggers are tied to different services (email, Dataverse, SharePoint) and would not fire on user creation.

Answer

When a new email arrives

Answer

When a row is added, modified or deleted in Dataverse

Answer

When a file is created in SharePoint

Question 4

A company wants to use Power Apps to create a mobile app for field technicians. The app must work offline and sync data when connectivity is restored. Which feature should they use?

Accepted Answer

Offline capability in Dataverse (mobile offline sync). Dataverse mobile offline sync is the built-in Power Apps capability that lets canvas and model-driven apps download a filtered subset of Dataverse tables to the device, so field technicians can read and write data without connectivity. When the device reconnects, queued changes are synchronized back to Dataverse automatically, resolving conflicts server-side. This directly satisfies the offline-first requirement without custom code.

Answer

Power Apps portals

Answer

Power Apps component framework

Answer

Monitor tool in Power Apps

Question 5

Refer to the exhibit. You see a Power BI DAX measure. What does this measure calculate?

Accepted Answer

Total sales for the previous year relative to the selected year.. The DAX measure uses the `SAMEPERIODLASTYEAR` function, which shifts the current filter context back by one year. When placed in a visual with a year slicer or axis, it returns the total sales for the same period in the previous year relative to the selected year. This is a standard time intelligence calculation for comparing year-over-year absolute values.

Answer

Total sales for the current year.

Answer

Running total of sales up to the selected year.

Answer

Year-over-year growth percentage.

Question 6

You create a Power Automate flow that runs when a new tweet matches a keyword. What type of trigger does this use?

Accepted Answer

Automated trigger. An automated trigger in Power Automate fires in response to an event, such as a new tweet matching a keyword, without any user interaction. The Twitter/X connector provides a 'When a new tweet matching a keyword is posted' trigger, which is classified as automated because it is event-driven. This is distinct from scheduled or manual triggers, which require a timer or explicit user action.

Answer

Recurrence trigger

Answer

Manual trigger

Answer

Scheduled trigger

Question 7

A Power Pages site is experiencing slow load times for a page that displays a list of products from a Dataverse table. The page uses a Liquid template with a fetch query that retrieves all products without filtering. Which change would most improve performance?

Accepted Answer

Modify the fetch query in the Liquid template to include a filter, such as only active products.. The Liquid template's fetch query retrieves all products from Dataverse without filtering, which means the server must query and render the entire table on every page load. Adding a filter such as 'only active products' reduces the result set returned by Dataverse, cutting query execution time and the amount of data transferred and rendered. This directly addresses the root cause of the slow load time — an inefficient, unbounded data retrieval — rather than masking it with caching or CDN.

Answer

Enable the content delivery network (CDN) for the site.

Answer

Adjust the page caching settings in the Power Pages admin center.

Answer

Replace the Liquid template with the out-of-the-box list component.

Question 8

A company has a Power Automate flow that uses a premium connector (e.g., SQL Server). Several users report that the flow fails with a '401 Unauthorized' error. The flow uses a service principal for authentication. What is the most likely cause?

Accepted Answer

The service principal's certificate has expired.. Service principal certificates have expiration dates. When the certificate expires, authentication fails with a '401 Unauthorized' error. Option A is incorrect because a wrong connection string would produce a different error (e.g., 'Cannot connect to SQL Server'). Option B is irrelevant as the environment does not affect authentication. Option C is incorrect because rate limits cause '429 Too Many Requests', not 401.

Answer

The SQL Server connection string is incorrect.

Answer

The flow is not in the default environment.

Answer

The flow is exceeding API rate limits.

Question 9

A company wants to automatically send a welcome email to new customers when they submit a form on the company website. Which Power Platform tool should be used?

Accepted Answer

Power Automate. Power Automate is the correct tool because it enables the creation of automated workflows that can trigger when a form is submitted, then send a welcome email via an email connector. This aligns with Power Automate's core purpose of automating business processes across applications and services without manual intervention.

Answer

Power BI

Answer

Power Apps

Answer

Power Virtual Agents

Question 10

A Power Apps canvas app uses a SharePoint list as its data source. Users report that the app is slow to load when the list contains over 10,000 items. What is the best approach to improve performance?

Accepted Answer

Use delegation-compatible functions and filters in the app.. Delegation allows queries to be processed on the data source side, reducing the amount of data transferred and improving performance. Option D is correct because delegation-compatible functions (e.g., Filter, LookUp) ensure only relevant data is retrieved. Option A is wrong because increasing the data row limit loads more data, worsening performance. Option B is wrong because switching to Dataverse might help but is not the best approach—it requires migration and may not always be feasible. Option C is wrong because reducing columns only marginally reduces data size, but without delegation, performance issues persist due to large row counts.

Answer

Increase the data row limit in the app settings.

Answer

Switch to a Microsoft Dataverse data source.

Answer

Reduce the number of columns in the SharePoint list.

Question 11

A company wants to use Power Platform to streamline its expense reporting process. Which TWO components can be used together to create a complete solution that allows employees to submit expenses, managers to approve them, and finance to analyze trends?

Accepted Answer

Power Apps. Power Apps (C) is correct because it provides the canvas or model-driven app interface where employees can enter and submit expense data and managers can review and approve them, forming the front-end user experience of the solution. Power Automate (D) is correct because it supplies the workflow automation that routes submitted expenses to the appropriate manager for approval, sends notifications, and triggers downstream actions such as updating Dataverse or SharePoint records and alerting finance. Together, Power Apps and Power Automate deliver the submit-approve-automate flow that the scenario requires. Power BI (B) is a reporting and analytics tool that could visualize trends, but it is not one of the two components needed to build the submission and approval process itself. Copilot Studio (A) is for building conversational AI agents, and Power Pages (E) is for creating external-facing business websites, neither of which is required to implement the internal expense submission and approval workflow.

Answer

Copilot Studio

Answer

Power BI

Answer

Power Pages

Question 12

Your company uses Power Automate to handle approvals for purchase orders. You need to create a flow that triggers when an item is added to a SharePoint list, checks if the amount exceeds $10,000, and if so, sends an approval request to the finance manager. If approved, the item status should be updated to 'Approved'. Which type of flow should you use?

Accepted Answer

Automated cloud flow. An automated cloud flow is triggered automatically by an event, such as an item being added to a SharePoint list. This matches the requirement: the flow must start when a new purchase order item is created, evaluate the amount, and conditionally send an approval. Automated flows are the correct type for event-driven, server-side orchestration without user initiation.

Answer

Business process flow

Answer

Instant cloud flow

Answer

Desktop flow

Question 13

A non-profit organization wants to track donations and manage volunteers using a single system. They have limited IT staff and budget. Which Power Platform solution is most suitable?

Accepted Answer

Custom app built with Power Apps connected to Dataverse. Power Apps allows building a custom app that integrates donations and volunteer management in a single system using Dataverse as the underlying data platform. This provides a low-code solution that minimizes the need for extensive IT resources and budget, while still offering relational data storage, security, and scalability suitable for a non-profit's needs.

Answer

Dynamics 365 Sales

Answer

Power Automate flows to send emails

Answer

Power BI dashboards connected to Excel

Question 14

A government agency uses Power Platform with strict compliance requirements. They need to retain all audit logs of user activities within Power Platform for at least 7 years. The agency uses Microsoft Purview for compliance and Microsoft Sentinel for security monitoring. The admin needs to ensure that all Power Platform audit events are captured and retained for the required period. What should the admin do?

Accepted Answer

Configure a retention policy in Microsoft Purview for the Power Platform audit logs.. Power Platform audit logs are stored in the Microsoft 365 unified audit log. Microsoft Purview allows configuring retention policies for these logs to meet compliance requirements. Option C is correct because it directly addresses the need to retain logs for 7 years via a Purview retention policy. Options A, B, and D are insufficient or misaligned: A (export to Azure Blob Storage) is an extra step and not the native retention mechanism; B (Microsoft Sentinel) is for security monitoring, not primary retention; D (enabling audit logging) is necessary but does not set the retention duration.

Answer

Export audit logs to Azure Blob Storage and set a retention policy there.

Answer

Use Microsoft Sentinel to store and retain the logs for 7 years.

Answer

Enable audit logging in each Power Platform environment's settings.

Question 15

An organization needs to create a centralized repository of business data that can be used by Power Apps, Power Automate, and Power BI. Which data storage option is designed for this purpose?

Accepted Answer

Microsoft Dataverse. Microsoft Dataverse is the correct choice because it is a low-code data platform specifically designed to securely store and manage business data used by Power Apps, Power Automate, and Power BI. It provides a common data schema, built-in business logic, role-based security, and seamless integration with the Power Platform, making it the centralized repository for business data.

Answer

SharePoint lists

Answer

Azure SQL Database

Answer

Excel Online