Microsoft Microsoft Certifications PL-400 Questions & Answers

• Question 251:

  Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.

  After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

  A Common Data Service (CDS) environment has two custom entities named Building code and Work item. Building code has a code date custom field and Work item has an elapsed time custom field. Construction workers use a consolidated

  custom form with data from both entities to fill.in their daily work items.

  A JavaScript library is used with these custom entities and fields to apply complex logic.

  You need to ensure that the JavaScript library continues to function as originally designed if other developers expand the environment.

  Solution: In the JavaScript library, add Building code with Code date and Work item with Elapsed time in the dependencies tab.

  Does the solution meet the goal?

  A. Yes

  B. No

  Correct Answer: A

  Within a solution you can define dependencies within solution components. Up until Dynamics 365 for Customer Engagement apps version 9.0 the main purpose of these dependencies was to prevent the deletion of a solution component when another solution component depended on it.

  The following image shows the dependencies tab within the web resource form. Dependencies between web resources are set in the top list.

  

  Reference: https://docs.microsoft.com/en-us/dynamics365/customerengagement/on-premises/developer/web-resource-dependencies

• Question 252:

  A company uses a model-driven app to record details of laboratory test.

  You are asked to create a custom component that makes it easier to capture multiple values from lab test results on mobile devices.

  You need to create the interface for the dataset in case the mobile devices lose connection to the network.

  Which method should you use?

  A. SaveData

  B. updateView

  C. init

  D. getClient

  Correct Answer: A

  Use LoadData and SaveData for basic data storage while offline.

  Note:

  When building mobile apps, one of the most common scenarios app makers face is how to enable their users be productive in situations where there is limited or no connectivity at all. This has been one of the most requested features for

  PowerApps to allow running apps while being disconnected and to provide some support for offline data caching. In this release of PowerApps, we are delivering the first set of improvements for app makers to achieve that by enabling:

  Launching the PowerApps mobile player app offline Running apps while being offline

  Determine when your app is online or offline or in a metered connection by using the Connection signal object.

  Leverage existing formulas such as LoadData and SaveData for basic data storage while offline.

  Reference:

  https://powerapps.microsoft.com/sv-se/blog/build-offline-apps-with-new-powerapps-capabilities/

• Question 253:

  Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while

  others might not have a correct solution.

  After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

  An organization has an Azure SQL Database instance that must be synchronized daily with data from Dynamics 365 Sales. A large amount of data might need to be synchronized on some days.

  You need to reduce the time required to synchronize data.

  Solution:

  Enable change tracking for entities that will be synchronized. Implement a console application that queries for changes.

  Does the solution meet the goal?

  A. Yes

  B. No

  Correct Answer: B

  Instead use the Data Export Service to sync data between the database and Dynamics 365 Sales.

  References: https://docs.microsoft.com/en-us/power-platform/admin/enable-change-tracking-control-data-synchronization

• Question 254:

  You have a Common Data Service entity and a model-driven app. The model-driven app integrates with an external system.

  You plan to run business logic each time the model-driven app creates a record. Running business logic must not negatively affect model-driven app users.

  You need to implement the business logic.

  What should you use?

  A. Synchronous plug-in registered in the PreOperation stage

  B. Synchronous workflow

  C. Asynchronous plug-in registered in the PostOperation stage

  Correct Answer: C

  The asynchronous service executes long-running operations independent of the main Microsoft Dataverse core operation. This results in improved overall system performance and improved scalability.

  Reference: https://docs.microsoft.com/en-us/powerapps/developer/common-data-service/asynchronous-service

• Question 255:

  An organization uses Dynamics 365 Sales. The organization has accounting and customer service departments.

  You must restrict users in customer service from being able to change the value of the balance field on the Contact records. The accounting team must be the only team able to edit this field.

  You need to create the appropriate solution without any customizations.

  What should you do first?

  A. Enable field security for the balance field and grant the customer service team read and update permissions.

  B. Create a customer service form and role and make the balance field read-only.

  C. Enable field security for the balance field and grant the accounting team read permissions.

  D. Enable field security for the balance field and grant the customer service team read permissions.

  Correct Answer: C

  In Dynamics 365 Customer Engagement (on-premises), you use field-level security to restrict access to high business impact fields to specific users and teams. For example, you use this to enable only certain users to read or update the credit score for a customer.

  Reference: https://docs.microsoft.com/en-us/dynamics365/customerengagement/on-premises/developer/security-dev/use-field-security-control-access-field-values

• Question 256:

  A financial institution that has a Dynamics 365 Customer Engagement environment requires that the account balance field from the account entity be visible to specific users only.

  You need to set up the field security for the account balance field.

  Which three actions should you perform? Each correct answer presents part of the solution.

  NOTE: Each correct selection is worth one point.

  A. Set the field to Read-Only and then publish the entity

  B. Set the field permission Allow Read to Yes and add the users to the members section

  C. Create a security role and add the specific users to the role

  D. Enable field security and then publish the entity

  E. Create a field security profile

  Correct Answer: BDE

  To implement field-level security, a system administrator performs the following tasks.

  1.

  Enable field security on one or more fields for a given entity.

  2.

  Associate one more existing security profiles, or create one or more new security profiles to grant the appropriate access to specific users or teams.

  A security profile determines the following:

  1.

  Permissions to the secure fields

  2.

  Users and Teams

  A security profile can be configured to grant user or team members the following permissions at the field level:

  1.

  Read. Read-only access to the field's data.

  2.

  Create. Users or teams in this profile can add data to this field when creating a record.

  3.

  Update. Users or teams in this profile can update the field's data after it has been created.

  Reference: https://docs.microsoft.com/en-us/power-platform/admin/field-level-security

• Question 257:

  Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.

  After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

  A Common Data Service (CDS) environment has two custom entities named Building code and Work item. Building code has a code date custom field and Work item has an elapsed time custom field. Construction workers use a consolidated

  custom form with data from both entities to fill.in their daily work items.

  A JavaScript library is used with these custom entities and fields to apply complex logic.

  You need to ensure that the JavaScript library continues to function as originally designed if other developers expand the environment.

  Solution:

  In the Building code form, add the JavaScript library in the events tab and the Code date field to the non-event dependencies. In the Work item form, add the JavaScript library in the Events tab and the Elapsed time field to the non-event

  dependencies.

  Does the solution meet the goal?

  A. Yes

  B. No

  Correct Answer: B

  Instead, in the JavaScript library, add Building code with Code date and Work item with Elapsed time in the dependencies tab.

  Reference: https://docs.microsoft.com/en-us/dynamics365/customerengagement/on-premises/developer/web-resource-dependencies

• Question 258:

  You have the following code:

  

  You have a contact record that uses the GUID 991bf2fd-d40c-4752-9984-26b7c0455b69.

  You need to assign the contact record as the primary contact for an account when you create the account.

  Which two code segments can you use? Each correct answer presents a complete solution.

  NOTE: Each correct selection is worth one point.

  A. var data = { "name": "Contoso account","primarycontactid": { "logicalname": "contact","id": "991bf2fd-d40c-4752-9984-26b7c0455b69" }

  };

  B. var data = { "name": "Contoso account","[email protected]":"/contacts(991bf2fd-d40c-4752-9984-26b7c0455b69)"

  };

  C. var data = { "name": "Contoso account","[email protected]":"/contacts(991bf2fd-d40c-4752-9984-26b7c0455b69)"

  };

  D. var data = { "name": "Contoso account","primarycontactid":"/contacts(991bf2fd-d40c-4752-9984-26b7c0455b69)"

  };

  Correct Answer: AB

  B: To associate new table records to existing table records, set the value of single-valued navigation properties using the @odata.bind annotation

  Example: var data =

  {

  "name": "Sample Account",

  "[email protected]": "/contacts(465b158c-541c-e511-80d3-3863bb347ba8)"

  }

  A: For mobile clients in the offline mode, you cannot use the @odata.bind annotation, and instead have to pass a lookup object (logicalname and id) pointing to the target record.

  var data =

  {

  "name": "Sample Account",

  "primarycontactid":

  {

  "logicalname": "contact",

  "id": "465b158c-541c-e511-80d3-3863bb347ba8"

  }

  }

  Note Syntax:

  Xrm.WebApi.createRecord(entityLogicalName, data).then(successCallback, errorCallback);

  entityLogicalName: Logical name of the table you want to create. For example: "account".

  Data: A JSON object defining the columns and values for the new table record.

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

• Question 259:

  A company has two development instances, two test instances, two staging instances, and one production instance.

  The test team reports connection issues with the test and staging instances.

  You need to identify which of the instances the testing team currently has access.

  Which two URLs can you use? Each correct answer presents a complete solution.

  NOTE: Each correct selection is worth one point.

  A. https://globaldisco.crm.dynamics.com/api/discovery/v9.1/instances

  B. https://myorg.api.crm.dynamics.com/api/data/v9.1/

  C. https://dev.crm.dynamics.com/api/discovery/v9.1/instances

  D. https://disco.crm.dynamics.com/api/discovery/v9.1/

  E. https://dev.crm.dynamics.com/api/discovery/v9.1/instances(UniqueName='myorg')

  Correct Answer: CE

  Organization information is stored in the Instance entity of the Discovery service. To see the kind of information contained in that entity, send an HTTP GET request to the service for one of your instances. GET https://dev.{servername}/api/ discovery/v9.0/Instances(UniqueName='myorg') Example: Get the details of a specific instance. If you leave out the GUID, all instances that the authenticated user has access to are returned. GET https:// dev.{servername}/api/discovery/v9.0/ Instances()

  Reference: https://docs.microsoft.com/en-us/dynamics365/customerengagement/on-premises/developer/webapi/discoverurl-organization-web-api

• Question 260:

  You are developing an app that uses Common Data Service.

  You must integrate Common Data Service with a new web application. You must allow the new web application to display data from Common Data Service.

  You build a single-page web application using the Web API.

  You need to authenticate your app using OAuth.

  What should you use?

  A. Windows Communication Foundation (WCF)

  B. Cross-Origin Resource Sharing (CORS)

  C. Microsoft Authentication Library (MSAL)

  D. Kerberos authentication

  E. Active Directory Authentication Library (ADAL)

  Correct Answer: B

  You can create a Single-Page Application (SPA) which uses JavaScript to work with Microsoft Dataverse (Common Data Service) data. To provide this, Cross-Origin Resource Sharing (CORS) is enabled so that your SPAs can bypass browser restrictions that normally prevent requests that cross domain boundaries.

  Reference: https://docs.microsoft.com/en-us/power-apps/developer/data-platform/oauth-cross-origin-resource-sharing-connect-single-page-application