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Microsoft PL-400 Exam Syllabus Topics:

Section	Weight	Objectives
Create a technical design	10–15%	- Design technical architecture 1. Design authentication and authorization strategy 2. Analyze requirements and determine solution approach 3. Assess security and DLP policy impact 4. Evaluate out-of-the-box vs custom development - Design solution components 1. Design data model and table structures 2. Design custom connectors and APIs 3. Plan application lifecycle management (ALM) 4. Design business logic and automation
Extend the platform	30–35%	- Customize connectors and services 1. Authenticate and secure service connections 2. Build custom connectors - Develop Dataverse extensions 1. Create and register plug-ins 2. Implement Azure Functions and webhooks 3. Develop custom APIs and virtual entities - Implement server-side logic 1. Handle data operations and transactions 2. Use Power Fx and plug-in development
Build Power Platform solutions	10–15%	- Configure Microsoft Dataverse 1. Create and configure tables, relationships, and fields 2. Manage solutions and environment variables 3. Implement business rules, calculated and rollup fields 4. Configure security roles, teams, and access - Implement ALM practices 1. Manage solution dependencies and versions 2. Create CI/CD pipelines with Build Tools 3. Deploy solutions across environments
Implement Power Apps improvements	10–15%	- Enhance model-driven apps 1. Customize forms, views, and navigation 2. Implement client-side scripting 3. Configure command bar and event handlers - Enhance canvas apps 1. Optimize performance and resolve delegation issues 2. Implement advanced controls and component libraries 3. Use complex Power Fx formulas and functions
Develop integrations	10–15%	- Integrate with external systems 1. Use Microsoft Graph and Azure services 2. Connect to REST APIs and web services - Secure and monitor integrations - Implement data integration and transformation 1. Use Azure Logic Apps and Power Automate 2. Data conversion and synchronization
Extend the user experience	10–15%	- Implement custom client-side logic 1. Use JavaScript and TypeScript 2. Work with form events and client APIs - Create custom visualizations - Use Power Apps Component Framework 1. Build and deploy code components 2. Integrate custom components into apps

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Microsoft Power Platform Developer Sample Questions (Q332-Q337):

NEW QUESTION # 332
An online store has a custom web page that allows customers to place their orders against a Microsoft Dataverse database that uses custom products. The custom web page uses Web API patterns to create and update records.
Customers report that orders can be placed for out-of-stock items.
You need to update the page code to ensure that inventory is available before confirming an order.
Which pattern should you use for each step? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation:
Box 1: IsOptimisticConcurrencyEnabled
On a multi-threaded and multi-user system like Power Apps, operations and data changes often happen in parallel. A problem arises when two or more update or delete operations on the same piece of data happen at the same time. This situation could potentially result in data loss. The optimistic concurrency feature provides the ability for your applications to detect whether a table record has changed on the server in the time between when your application retrieved the record and when it tries to update or delete that record.
Box 2: If-Match: Etag
Use If-Match and If-None-Match headers with ETag values to check whether the current version of a resource matches the one last retrieved, matches any previous version or matches no version. These comparisons form the basis of conditional operation support. Dataverse provides ETags to support conditional retrievals, optimistic concurrency, and limited upsert operations.
Reference:
https://docs.microsoft.com/en-us/powerapps/developer/data-platform/optimistic-concurrency
https://docs.microsoft.com/en-us/powerapps/developer/data-platform/webapi/perform-conditional-operations-usi
https://docs.microsoft.com/en-us/powerapps/developer/data-platform/webapi/perform-conditional-operations-usi

NEW QUESTION # 333
An organization uses Dynamics 365 Sales. You plan to add a custom button to the app ribbon.
You need to ensure that the button displays only when conditions specified by business rules are met.
Which two code segments can you use? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.

A. formContext.ui.refreshRibbon();
B. formContext.getControl(arg).refresh();
C. gridContext.refresh();
D. formContext.ui.refreshRibbon(refreshAll);
E. formContext.data.refresh(save).then(successCallback, errorCallback);

Answer: A,D

Explanation:
B: formContext.ui.refreshRibbon(refreshAll);
Causes the ribbon to re-evaluate data that controls what is displayed in it.
Indicates whether all the ribbon command bars on the current page are refreshed. If you specify false, only the page-level ribbon command bar is refreshed. If you do not specify this parameter, by default false is passed.
Remarks: This function is typicaly used when a ribbon (RibbonDiffXml) depends on a value in the form. After your code changes a value that is used by a rule, use this method to force the ribbon to re-evaluate the data in the form so that the rule can be applied.
D: If role is there - just refresh the ribbon to see the button
if (isButtonEnabled) {
formContext.ui.refreshRibbon();
}
},
Reference:
https://docs.microsoft.com/en-us/powerapps/developer/model-driven-apps/clientapi/reference/formcontext-ui/refreshribbon
https://community.dynamics.com/crm/f/microsoft-dynamics-crm-forum/302049/show-hide-button-bases-on-different-criteria/871674

NEW QUESTION # 334
A JavaScript function on a Contact form alerts users to what they need to type, as shown in the JavaScript Code exhibit. (Click the JavaScript Code tab.)

The Business Phone field has the OnChange event handler defined as shown in the Event Handler exhibit. (Click the Event Handler tab.)

Users report that there is incorrect wording on the Contact page, as shown in the Contact exhibit. (Click the Contact tab.)

You need to determine what happens when a user modifies the business phone of a contact record.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Reference:
https://docs.microsoft.com/en-us/powerapps/developer/model-driven-apps/clientapi/reference/formcontext-ui/setformnotification
https://docs.microsoft.com/en-us/powerapps/developer/model-driven-apps/clientapi/reference/controls/setnotification

NEW QUESTION # 335
An international organization has a series of client-server applications that manage red light cameras and traffic violations across a wide geographic region. The daily volume of traffic violations is very high and growing.
You plan to use Microsoft Power Platform apps to manage the following types of data:
* Existing vehicle licensing data must be imported into Common Data Service and easily queried.
* Red light camera images must be stored in a repository for later analysis.
* Information about traffic violations must be stored and related to vehicle details.
You need to select data storage mechanisms for the new apps.
Which data storage mechanisms should you use? To answer, drag the appropriate data storage mechanisms to the correct data types. Each storage mechanism may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation:

NEW QUESTION # 336
You create a Power Apps component framework component.
You need to test the component.
Which option should you use? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

NEW QUESTION # 337
......

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