Microsoft Role-based PL-400 Questions & Answers

• Question 31:

  HOTSPOT

  You need to package and deploy a Power Apps code component to an environment.

  Which commands should you use? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: pac solution init --publisher-name

  Create a new solutions project using the following command. The solution project is used for bundling the code component into a solution zip file that is used for importing into Dataverse.

  pac solution init --publisher-name developer --publisher-prefix de

  Box 2: pac auth create

  Connecting to your environment.

  Auth commands are used to authenticate to Dataverse.

  Creates the authentication profile for your organization by passing the url parameter. Shows AAD dialog if sign in credentials are not specified.

  Example: pac auth create --url https://Myorg.crm.dynamics.com

  Box 3: pac pcf push --publisher-prefix

  Deploying code components

  After you have successfully created an authentication profile, you can start pushing the code components to the Dataverse instance with all the latest changes.

  The push capability speeds up the inner-developer cycle development because it bypasses the code component versioning requirements and does not require that you build your solution (cdsproj) to import the code component.

  To use the push capability, do the following:

  1.

  Ensure that you have a valid authentication profile created.

  2.

  Navigate to the directory where the sample component file is located.

  3.

  Run the command.

  pac pcf push --publisher-prefix

  Incorrect:

  Commands for working with Dataverse solution projects include:

  Parameter init

  Initializes the solution project. It has the following parameters:

  publisher-name: Publisher name of the organization.

  publisher-prefix: Publisher prefix of the organization.

  Reference:

  https://docs.microsoft.com/en-us/power-apps/developer/component-framework/import-custom-controls

• Question 32:

  HOTSPOT

  You are creating a new model-driven app.

  The app must meet the following requirements:

  1.

  Display an image that can be resized without loss in quality.

  2.

  Use a client API function to return language-localized text.

  You need to customize the app by using web resources.

  Which web resource types should you use?

  To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: SVG

  Display an image that can be resized without loss in quality.

  Use image web resources to make images available for use in model-driven apps.

  There are 5 types of image web resources:

  1.

  PNG Format

  2.

  JPG Format

  3.

  GIF Format

  4.

  ICO Format

  5.

  Vector Format (SVG)

  Use Vector Format (SVG) web resources for any icon presented in the application. Vector images are defined as Scalable Vector Graphics (SVG) an XML-based vector image format. The advantage of SVG over other image web resources is scale, smaller in size, and if the fill color is removed the model-driven app can control the icon color to avoid contrast issues. Box 2: RESX

  Use a client API function to return language-localized text.

  How to localize content in Custom pages for Model Driven app

  For standalone canvas apps, we usually use Language() function to detect users' language and LookUp some translated text from static data which contains localization and language code.

  In contrast with it, localizing contents in custom pages is achieved by adding RESX Web resources to your page.

  The process has the following steps:

  1.

  Prepare Resx web resources (Xml file) containing key-localize text pairs

  2.

  Import resources to solution through modern designer

  3.

  Set ResourceName.KeyName for some controls in page

  Reference:

• Question 33:

  HOTSPOT

  A manufacturing company takes online orders.

  The company requires automatic validation of order changes. Requirements are as follows:

  1.

  If validation is successful, the order changes must be submitted.

  2.

  If exceptions are encountered, a message must be shown to the customer and the order changes must not be submitted.

  You need to set up and deploy a plug-in that encapsulates the rules.

  Which options should you use? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: PreValidation

  PreValidation: For the initial operation, this stage will occur before the main system operation.

  This provides an opportunity to include logic to cancel the operation before the database transaction.

  Box 2: Synchronous

  Ideally, you should only cancel operations using synchronous plug-ins registered in the PreValidation stage.

  Box 3: Pre Image

  Box 4: throw ..

  When you throw an InvalidPluginExecutionException exception within a synchronous plug-in an error dialog with your message will be displayed to the user.

  Reference:

  https://docs.microsoft.com/en-us/powerapps/developer/common-data-service/event-framework

  https://docs.microsoft.com/en-us/powerapps/developer/common-data-service/handle-exceptions

• Question 34:

  HOTSPOT

  The planning department for municipal government wants to survey the land in town and define new property lines. You define a data model for the surveys.

  Surveyors and other department employees need a phone app to capture survey data.

  You need to define a Power Apps component framework (PCF) component to be used across multiple functional areas.

  How should you complete the PCF control manifest? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  In Microsoft Dataverse, activities are tasks that you or your teams perform when they contact customers, for example, sending letters or making telephone calls.

  

  Box 1: Decimal

  Latitudes range from -90 to +90 (degrees), so DECIMAL is ok.

  Decimal - Up to 10 decimal points of precision can be used for values between -100,000,000,000 and -100,000,000,000 can be in this column. You can specify the level of precision and the maximum and minimum values.

  Note: of-type-group – In some cases, we will need to configure a property that may be of different types (Eg: You need to configure a property with a Decimal or whole number CRM field in such cases you can use type-group).

  of-type-group - Name of the type-group as defined in manifest.

  The list of property types that can be created are

  Whole.None, TwoOptions, DateAndTime.DateOnly, DateAndTime.DateAndTime, Decimal, Enum, FP, Multiple, Currency, OptionSet, SingleLine.Email, SingleLine.Text, SingleLine.TextArea, SingleLine.URL, SingleLine.Ticker,

  SingleLine.Phone

  Incorrect:

  *

  Whole.None - This option simply displays a number.

  *

  Floating point

  No such option. There is FP - Up to 5 decimal points of precision can be used for values between -100,000,000,000 and -100,000,000,000 can be in this column. You can specify the level of precision and the maximum and minimum values.

  Box 2: Web API

  uses-feature indicates which feature the code components want to use.

  Web API provides properties and methods to use Web API to create and manage records.

  Available for Model-driven apps, canvas apps, and portals.

  Available for Model-driven apps, canvas apps, and portals.

  Incorrect:

  *

  Client is not an option.

  *

  Utility provides a container for useful methods. It is available for Model-driven apps.

  Reference: https://docs.microsoft.com/en-us/power-apps/developer/component-framework/manifest-schema-reference/property https://blog.magnetismsolutions.com/blog/jaredjohnson/2019/09/27/new-uses-feature-manifest-element-in-powerapps-component-framework-controls https://docs.microsoft.com/en-us/power-apps/developer/component-framework/reference/webapi https://docs.microsoft.com/en-us/power-apps/developer/component-framework/reference/utility

• Question 35:

  HOTSPOT

  You are developing a canvas app for a healthcare center.

  You need to create custom tables for the solution. You have the following requirements:

  

  You need to create the tables.

  Which table type should you create? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: Standard

  Tables appear in Power Apps as one of three different types, which indicate how the table came into the environment, whether the table is managed or unmanaged, and whether it can be customized.

  Standard: Several standard tables, also known as out-of-box tables, are included with a Power Platform environment, that includes Microsoft Dataverse. Account, business unit, contact, task, and user tables are examples of standard tables in

  Dataverse. Most of the standard tables included with Dataverse can be customized. Tables that are imported as part of a managed solution and set as customizable also appear as standard tables. Any user with appropriate privileges can

  customize these tables where the table property has customizable set to true.

  Managed: Are tables that aren't customizable and have been imported into the environment as part of a managed solution.

  Custom: Custom tables are unmanaged tables that are either imported from an unmanaged solution or are new tables created directly in the environment. Any user with appropriate privileges can fully customize these tables.

  Box 2: Virtual

  A virtual table is a custom table in Microsoft Dataverse that has columns containing data from an external data source. Virtual tables appear in your app to users as regular table rows, but contain data that is sourced from an external

  database, such as an Azure SQL Database. Rows based on virtual tables are available in all clients including custom clients developed using the Dataverse web services.

  Incorrect:

  * Activity

  Reference: https://docs.microsoft.com/en-us/power-apps/maker/data-platform/types-of-entities https://docs.microsoft.com/en-us/power-apps/maker/data-platform/create-edit-virtual-entities

• Question 36:

  HOTSPOT

  The following code updates the customersizecode choice column on the Account table if the numberofemployees column value is greater than 100.

  Line numbering is provided for information only.

  

  For each of the following statements, select Yes if the statement is true. Otherwise, select No.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: Yes

  The CrmServiceClient.Retrieve(String, Guid, ColumnSet) method issues a retrieve request to CRM

  Parameters

  EntityName String

  Entity name to request

  Id Guid

  ID of the entity to request

  ColumnSet ColumnSet

  ColumnSet to request

  Box 2: No

  The numberofemployees column is not updated.

  The customersizecode is updated.

  Box 3: No

  The code is in C#.

  In C#: When you perform comparisons with nullable types, if the value of one of the nullable types is null and the other is not, all comparisons evaluate to false except for != (not equal).

  Reference:

  https://learn.microsoft.com/en-us/dotnet/api/microsoft.xrm.tooling.connector.crmserviceclient.retrieve

  https://stackoverflow.com/questions/15777745/how-does-comparison-operator-works-with-null-int

• Question 37:

  HOTSPOT

  A travel agency uses Dynamics 365 Sales.

  Customers are allowed to add up to three regions to their travel preferences from the website. Customer preferences must be stored in the Contact entity. An error message must display if customers enter data incorrectly. You create a plug-

  in.

  You need to register the plug-in to meet the requirements.

  Which value should you apply for each parameter? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: create An error message must display if customers enter data incorrectly. The message must be created

  Box 2: contact Customers are allowed to add up to three countries/regions to their travel preferences from the website. Their preferences must be stored in the Contact entity.

  Box 3: region Customers are allowed to add up to three regions to their travel preferences from the website. Customer preferences must be stored in the Contact entity

  Box 4: synchronous A synchronous plug-in will cause the operation to wait until the code in the plug-in completes. This has an impact on perceived performance of the system. The operations in an asynchronous plug-in are placed in a queue and are executed after the operation is completed so that the operation can complete with minimal interruption.

  Reference: https://docs.microsoft.com/en-us/powerapps/developer/common-data-service/tutorial-write-plug-in

• Question 38:

  HOTSPOT

  You are developing a Power Platform solution that uses a plug-in. The plug-in includes the following code (line numbers are included for reference):

  

  The plug-in includes a step that is registered in the execution pipeline within the PreOperation stage for the Create message.

  For each of the following statements, select Yes if the statement is true. Otherwise, select No.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: No

  The code will only run with stage is 20 (pre-operation), not with in Post-operation, which is 40.

  Note: Stages: Valid values are 10 (pre-validation), 20 (pre-operation), 40 (post-operation), and 50 (post-operation, deprecated).

  Box 2: Yes

  Box 3: No

  No, the Update method can be offline when updating the Account table.

  Note: The IOrganizationService.Update(Entity) method updates an existing record.

  Reference:

  https://docs.microsoft.com/en-us/dotnet/api/microsoft.xrm.sdk.ipluginexecutioncontext.stage

  https://docs.microsoft.com/en-us/dotnet/api/microsoft.xrm.sdk.iorganizationservice.update

• Question 39:

  HOTSPOT

  You have a plug-in that performs business logic on contact records. The plug-in is registered in the post-operation stage and is executed when a field named custom_field3 is updated.

  The plug-in contains the following code:

  

  For each of the following statements, select Yes if the statement is true. Otherwise, select No.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: No

  ColumnSet(Boolean) initializes a new instance of the ColumnSet class setting the AllColumns property.

  public:

  ColumnSet(bool allColumns);

  Note: Do not retrieve Entity all columns via query APIs.

  Symptoms

  Retrieving all columns can cause:

  Performance issues due to the amount of data being retrieved

  Unintended plug-in/process execution

  Guidance

  For optimal performance, you should only select the minimum amount of data needed by your application when querying Microsoft Dataverse data.

  Box 2: Yes

  Define entity images

  Within your plug-in, you may want to reference primary table property values that weren't included in an operation. For example, in an Update operation you might want to know what a value was before it was changed, but the execution

  context doesn't provide this information, it only includes the changed value.

  If your plug-in step is registered in the PreValidation or PreOperation stages of the execution pipeline, you could use the Organization service to retrieve the current value of the property, but this isn't a good practice for performance. A better

  practice is to define a pre-entity image with your plug-in step registration. This will capture a 'snapshot' of the table with the fields you're interested in as they existed before the operation that you can use to compare with the changed values.

  Box 3: Yes

  Rather than filter tables after they have been retrieved, in the PostOperation stage, a plug-in can apply changes to the query in the PreOperation stage before it is executed.

  Reference:

  https://docs.microsoft.com/en-us/dotnet/api/microsoft.xrm.sdk.query.columnset.-ctor

  https://docs.microsoft.com/en-us/power-apps/developer/data-platform/best-practices/work-with-metadata/retrieve-specific-columns-entity-via-query-apis

  https://docs.microsoft.com/en-us/power-apps/developer/data-platform/register-plug-in

  https://docs.microsoft.com/en-us/power-apps/developer/data-platform/org-service/samples/modify-query-preoperation-stage

• Question 40:

  HOTSPOT

  You are creating a Microsoft Power Automate flow.

  The flow must prompt a user for some input and populate a field in an app based on the user's input.

  You need to add an expression that returns User1 if the input from the user is High. Otherwise, the expression must return User2.

  How should you complete the expression? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: equals Power automate if Funtion The Power Automate if Function is a fundamental function, which checks the expression or value, and returns true or false.

  For example: If (equals(2,3),’yes’, ‘no’), so this expression return no.

  Box 2: User1

  Box 3: User2

  Reference: https://www.enjoysharepoint.com/power-automate-if/