PL-900 Practice Test 28 — 15 Questions

Question 1

A company uses Power Automate to process purchase orders. After a recent update, the flow fails intermittently with a '429 Too Many Requests' error. What is the most likely cause?

Accepted Answer

The flow is exceeding Power Platform service protection limits.. The '429 Too Many Requests' error is an HTTP status code indicating rate limiting. In Power Automate, this occurs when a flow exceeds the Power Platform service protection limits, which are designed to prevent resource overconsumption. These limits include API request caps (e.g., 30 requests per 60 seconds per connection) and daily invocation quotas (e.g., 5,000 requests per day for a per-user plan). The error is not related to authentication expiry, outdated flow versions, or data source availability.

Answer

The flow uses an expired connector authentication.

Answer

The flow is running an outdated version.

Answer

The data source is temporarily unavailable.

Question 2

A company is building a canvas app to track inventory. The app needs to display the current stock level from a SharePoint list and allow users to update quantities via a form. Which connector should be used to read and write data?

Accepted Answer

SharePoint connector. The SharePoint connector is the correct choice because it provides native, bidirectional access to SharePoint lists, which are the data source described in the scenario. It supports both reading current stock levels (via Get items) and writing updates (via Create item or Update item) directly from a canvas app. Since the inventory data already resides in a SharePoint list, this connector is the most direct and appropriate integration point. Other connectors either serve different services or are not designed for direct data manipulation in this context.

Answer

Power Automate connector

Answer

Microsoft Dataverse connector

Answer

Microsoft Teams connector

Question 3

A company uses Microsoft Power Apps to build a leave request application. The app uses SharePoint as the data source. Users report that when they submit a leave request, the app sometimes fails to save the data and shows a generic error. Which should you investigate first?

Accepted Answer

Verify the connection to the SharePoint data source.. When a Power Apps app fails to save data to SharePoint and shows a generic error, the first thing to investigate is the connection to the SharePoint data source, because a broken or expired connection is the most common cause of save failures. Verifying the connection ensures the app can authenticate and communicate with SharePoint before investigating more complex issues like delegation or formulas.

Answer

Clear the browser cache and cookies.

Answer

Check if the app uses delegation for large lists.

Answer

Review the app formulas for syntax errors.

Question 4

A sales team wants to automate lead assignment based on region without writing code. Which Microsoft Power Platform component should they use?

Accepted Answer

Power Automate. Power Automate is the correct choice because it enables users to create automated workflows that can assign leads based on region using conditional logic and data from sources like Dynamics 365 or SharePoint, all without writing code. It provides prebuilt connectors and triggers (e.g., 'When a lead is created') to automate business processes seamlessly.

Answer

Power Apps

Answer

Power BI

Answer

Power Virtual Agents

Question 5

A Power Platform administrator is setting up a new environment for a department. The department requires that data stored in the environment remain within a specific geographic region. The administrator creates the environment in the Europe region. Which additional step must the administrator take to ensure that all data, including backups, stays in that region?

Accepted Answer

Configure the environment's region during creation; no further action is required.. Data residency in Power Platform is determined by the region chosen when an environment is created. The environment's data, including backups, is stored in data centers within that region. No additional configuration is required to enforce this. The administrator's creation of the environment in the Europe region already ensures that data remains in that geography, making other proposed steps unnecessary or ineffective.

Answer

Create a data loss prevention policy that blocks connectors outside the region.

Answer

Enable the 'Data residency' setting in the Power Platform admin center.

Answer

Assign the environment to a security group that is restricted to users in that region.

Question 6

A healthcare provider needs to ensure that only authorized users can access patient data in a Power Apps app. The app uses Dataverse. What should the administrator configure?

Accepted Answer

Assign Dataverse security roles to users. Dataverse uses its own security model based on security roles, which define the privileges a user has on tables, records, and other resources. To ensure that only authorized users can access patient data in a Power Apps app that uses Dataverse, the administrator must assign appropriate Dataverse security roles to users. These roles control create, read, write, delete, and append privileges at the organization, business unit, parent-child business unit, and user levels.

Answer

Configure SharePoint permissions for the app

Answer

Set environment as restricted in Power Platform admin center

Answer

Use Microsoft Entra ID conditional access policies

Question 7

A Power Pages site has multiple content pages and uses a custom theme. The marketing team wants to change the site's header logo and primary color. What is the most efficient method to apply these changes?

Accepted Answer

Use Power Pages Studio to update the site's theme and logo.. Power Pages Studio provides a no-code interface to modify site styling, including logo and theme colors. Editing CSS in Visual Studio Code is complex and may break the site. Using the Portal Management app is possible but less intuitive. Modifying the Liquid template is unnecessary.

Answer

Navigate to the Portal Management app and update the site settings.

Answer

Edit the site's CSS file directly in Visual Studio Code.

Answer

Modify the Liquid template that renders the header.

Question 8

A Power Pages site uses a custom form to capture customer feedback. The form should send an email notification to the support team when a new submission is made. What is the recommended way to achieve this?

Accepted Answer

Create a Power Automate flow triggered when a new row is added to the Dataverse table.. Power Automate can be triggered from a Dataverse table event when a new record is created, and send email. Using a custom workflow or Business Rule is less flexible. JavaScript is not reliable for server-side actions.

Answer

Configure a Business Rule on the form to send an email.

Answer

Use a custom JavaScript to call an email API.

Answer

Set up a classic workflow in Dataverse.

Question 9

You are designing a Power Pages site for a university to allow students to view their grades. Each student should only see their own records in the Grades table. The Grades table has a lookup column to the Contacts table. What table permission configuration should you use?

Accepted Answer

Set the table permission scope to 'Contact' and assign the permission to the student web role.. Contact scope restricts records where the Contact lookup matches the logged-in user's contact.

Answer

Set the table permission scope to 'Global' and restrict using a view.

Answer

Create a separate web role for each student.

Answer

Use a Power Automate flow to filter records.

Question 10

You have a model-driven app that includes a custom table. You need to add a field that calculates a value based on other fields (e.g., total price = quantity * unit price). Which type of field should you create?

Accepted Answer

Calculated field. A Calculated field in Dataverse computes its value at runtime using a formula that references other columns in the same table, such as quantity * unit price. It is read-only and automatically updates when the referenced fields change. This matches the requirement for a field that derives its value from other fields.

Answer

Text field

Answer

Choice field

Answer

Rollup field

Question 11

You are troubleshooting a canvas app that connects to a SQL Server database through an on-premises data gateway. Users in the finance department receive an error stating the app cannot reach the data source, while users in IT can use the app normally. What is the most likely cause?

Accepted Answer

The finance users have not been granted access to the on-premises data gateway connection.. On-premises data gateway connections maintain a separate list of users who may use the connection. If finance users are omitted from that list, their apps cannot authenticate through the gateway and report the data source as unreachable, while IT users who were added work normally. Gateway machine availability and SQL Server connection limits would affect all users, and database permission errors would produce different messages.

Answer

The finance users lack the necessary permissions on the SQL Server database.

Answer

The gateway is installed on a machine that is turned off during finance working hours.

Answer

The SQL Server database has reached its maximum number of concurrent connections.

Question 12

An organization uses Power Automate to approve expense reports. Managers want to approve via Microsoft Teams. Which connector should be used?

Accepted Answer

Microsoft Teams. The Microsoft Teams connector is the correct choice because it enables Power Automate flows to interact directly with Microsoft Teams, allowing managers to approve expense reports through Teams messages, adaptive cards, or chat-based approvals without leaving the Teams interface.

Answer

Office 365 Outlook

Answer

Dataverse

Answer

SharePoint

Question 13

Which THREE components are part of a Power Automate cloud flow?

Accepted Answer

Action. A Power Automate cloud flow is built from three core components: a Trigger (option E), which defines the event that starts the flow (such as a new email, a scheduled recurrence, or an HTTP request); an Action (option A), which is each step that performs work after the trigger (for example, sending a Teams message, creating a SharePoint item, or calling a connector operation); and a Connector (option B), which is the API wrapper that exposes the underlying service's triggers and actions to the flow. These three elements are exactly what the flow designer composes into the definition that runs in the Power Automate service. Business process flow (option C) is a different Power Platform feature used in Dynamics 365/model-driven apps for guiding users through stages, not a component of a cloud flow, and Power Apps (option D) is a separate app-building service rather than a building block inside a flow.

Answer

Business process flow

Answer

Power Apps

Question 14

A user wants to build a chatbot to answer common IT support questions, such as password reset and software installation steps. Which Power Platform tool should they use?

Accepted Answer

Power Virtual Agents. Power Virtual Agents (D) is the correct tool because it is specifically designed to create conversational AI chatbots without requiring coding. It enables users to build a bot that can handle common IT support queries like password resets and software installation steps by defining topics, trigger phrases, and dialog flows, integrating with backend systems via Power Automate or connectors.

Answer

Power Apps

Answer

Power Automate

Answer

Power BI

Question 15

Match each Microsoft Power Platform component to its primary purpose.

Accepted Answer

Power Apps: Build custom business applications with low-code/no-code. Power Apps builds custom apps, Power Automate automates workflows, Power BI analyzes data, and Power Virtual Agents creates chatbots. Common confusions include swapping these definitions.

Answer

Power BI: Create conversational AI chatbots

Answer

Power Virtual Agents: Visualize and analyze data