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Microsoft PL-400 Exam Syllabus Topics:

Section	Weight	Objectives
Extend the user experience	10-15%	- Create custom UX components 1. Build custom pages 2. Implement PCF controls - Apply business logic using Power Fx 1. Use variables and collections 2. Implement Power Fx formulas
Create a technical design	10-15%	- Design solution components 1. Design data models 2. Design security models - Design technical architecture 1. Identify Power Platform components 2. Design solution architecture
Build Power Platform solutions	10-15%	- Configure environments 1. Set up development environments 2. Manage solutions - Create entities and fields 1. Design entity relationships 2. Configure business rules
Extend the platform	40-45%	- Create custom connectors 1. Implement authentication 2. Define Open API specifications 3. Configure policy templates - Develop plug-ins 1. Debug plug-ins 2. Create custom plug-ins 3. Register plug-ins - Use platform APIs 1. Use Organization service 2. Implement OAuth authentication 3. Perform operations with Dataverse Web API
Develop integrations	5-10%	- Configure Azure integrations 1. Implement Azure Service Bus 2. Set up Azure Functions - Implement Power Automate cloud flows 1. Create automated workflows 2. Implement error handling
Implement Power Apps improvements	5-10%	- Extend canvas apps 1. Connect to external data sources 2. Implement advanced formulas - Extend model-driven apps 1. Customize forms and views 2. Implement business logic

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Microsoft Power Platform Developer Sample Questions (Q69-Q74):

NEW QUESTION # 69
You need to handle errors in UpdateRecord.js.
Which code segment should you add at line UR06?

A. function (error){
console.log(error.message)}
B. catch(exception e){
console.writeline(e)}
C. Exception exception = Server.GetLastError() ;
if(exception != null)}
D. catch(error) {
alert("Caught error: " + error.message);}

Answer: D

Explanation:
https://docs.microsoft.com/en-us/powerapps/developer/model-driven-apps/clientapi/reference/xrm-webapi
/updaterecord

NEW QUESTION # 70
You develop the following JavaScript code for a web resource that will be used in a model-driven app.

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:

Explanation
Graphical user interface, text, application, email Description automatically generated

Box 1: Yes
Problem patterns: Web-use-async
There are multiple ways to interact with the server or request resources. Common approaches that allow for synchronous communications include the following (These scenarios should be avoided.):
Usage of the XMLHttpRequest object passing in false for the value of the async parameter for the open function call var requestXhr = new XMLHttpRequest();
// Explicitly setting the async parameter to false or supplying a variable with a value of false will force this as a synchronous call. requestXhr.open('GET', '/test/test.txt', false); Box 2: No
=== - Strict Equality Comparison is already used in the code.
Box 3: No
No debugger statement in the code, so web-remove-debug-script (avoid including debug script in non-development environments) does not apply.
Reference:
https://docs.microsoft.com/sr-cyrl-rs/powerapps/developer/model-driven-apps/best-practices/business-logic/inter
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Strict_equality

NEW QUESTION # 71
An organization uses Common Data Service.
The organization's IT helpdesk requires a single-page web application to monitor and manage Data Export Service. The app must access Data Export Service securely. The app must also permit helpdesk users to perform a limited set of functions.
You need to create a single-page app.
Which options should you use? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation:

Box 1: Register the app in Azure Active Directory
Box 2: Use FetchXML queries
The failure entries can be retrieved through the Get the failure details for a given Profile request. The response returns a URI to an Azure blob that contains the failure information. Each line has the following comma- separated fields (newlines added for clarity):
Entity: <entity-name>,
RecordId: <"N/A" | guid>,
NotificationTime: <datetime>,
ChangeType: <sync-type>,
FailureReason: <description>
Note: FetchXML is a proprietary XML based query language of Microsoft Dataverse used to query data using either the Web API or the Organization service. It's based on a schema that describes the capabilities of the language. The FetchXML language supports similar query capabilities as query expressions.
Reference:
https://docs.microsoft.com/en-us/powerapps/developer/data-platform/data-export-service
https://docs.microsoft.com/en-us/power-platform/admin/replicate-data-microsoft-azure-sql-database
https://docs.microsoft.com/en-us/powerapps/developer/data-platform/use-fetchxml-construct-query

NEW QUESTION # 72
You need to add the script for the registration form event handling.
Which code segment should you use?

A. addOnPreProcessStatusChange
B. formContext.data.entity.addOnSave(myFunction)
C. formContext.data.isValid()
D. formContext.data.removeOnLoad(myFunction)
E. formContext.data.addOnLoad(myFunction)

Answer: E

Explanation:
Scenario: Information about upcoming tournaments must be pre-located into the registration form when the registration form loads.
addOnLoad adds event handlers to the Subgrid OnLoad event event.
Reference:
https://docs.microsoft.com/en-us/powerapps/developer/model-driven-apps/clientapi/reference/grids/gridcontrol/addonload

NEW QUESTION # 73
You are developing a Web API for a company.
You need to implement the appropriate operations to meet the company's requirements.
What should you implement? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation

Box 1: Functions
Box 2: Actions
Box 3: Complex types
Complex types are keyless named structured types consisting of a set of properties. Complex types are commonly used as property values in model entities, or as parameters or return values for operations.
Reference:
https://docs.microsoft.com/en-us/powerapps/developer/common-data-service/webapi/web-api-types-operations#c

NEW QUESTION # 74
......

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