Correct Answer: D

Work with alternate keys All Microsoft Dataverse table rows have unique identifiers defined as GUIDs. These are the primary key for each table. When you need to integrate with an external data store, you might be able to add a column to the external database tables to contain a reference to the unique identifier in Dataverse. This allows you to have a local reference to link to the Dataverse row. However, sometimes you can't modify the external database. With alternate keys you can now define a column in a Dataverse table to correspond to a unique identifier (or unique combination of columns) used by the external data store. This alternate key can be used to uniquely identify a row in Dataverse in place of the primary key. You must be able to define which columns represent a unique identity for your rows. Once you identify the columns that are unique to the table, you can declare them as alternate keys through the customization user interface (UI) or in the code.

Reference: https://docs.microsoft.com/en-us/power-apps/developer/data-platform/define-alternate-keys-entity

Correct Answer: C

* Issues. Address verification

Users report that the address verification API returns the following error message: The Same Origin Policy disallows reading the remote resource.

* Cross-origin resource sharing (CORS) is disabled for all three APIs.

Correct Answer: C

When the account is entered into the system, extra fields must appear if the referral customer box is selected. If the box is not selected, the extra fields must not appear. Note: By combining conditions and actions, you can do any of the following with business rules:

1.

Set column values

2.

Clear column values

3.

Set column requirement levels

4.

Show or hide columns

5.

Enable or disable columns

6.

Validate data and show error messages

7.

Create business recommendations based on business intelligence.

Reference: https://docs.microsoft.com/en-us/powerapps/maker/data-platform/data-platform-createbusiness-rule

Correct Answer:

Step 1: Call the login logic.

Step 2: Retrieve the Course credit entity metadata by using RetrieveEntityRequest with EntityFilters = Attributes and LogicalName

The RetrieveEntityRequest.EntityFilters property gets or sets a filter to control how much data for the entity is retrieved.

Step 3: Define the AttributeMetaData for each new field.

Step 4: Call the RetrieveAttributeRequest with LogicalName for each new field. The RetrieveAttributeRequest contains the data that is needed to retrieve attribute metadata.

Correct Answer:

Box 1: Display Rule

When configuring ribbon elements, you can define specific rules to control when the ribbon elements will display.

Box 2: Action

Define the actions to be performed by a command bar or ribbon control in a element together with rules that control whether the control is enabled or visible in the ribbon.

Box 3: Enable Rule

When configuring ribbon elements, you can define specific rules to control when the ribbon elements are enabled.

Correct Answer:

Box 1: start npm start

Those two “start”-s surrounding the “npm” have completely different meaning. When done this way, a new command prompt window will show up and “npm start” will run in that additional window:

It’ll be the same result – you will have the harness started, but, also, your original terminal session will continue to work, and you won't need to open another one.

Box 2: Npm start watch

The following image shows what Visual Studio Code will look like when you use the npm start watch for the DataSetGrid sample:

Launching the test harness in watch mode enables you to quickly see the changes in action. Changes made to any of the following component assets are automatically reflected in the test harness without having to restart it:

index.ts file.

Imported modules in index.ts (excluding node_modules).

All of the resources listed in the ControlManifest.Input.xml file, for example, css/DataSetGrid.css or strings/DataSetGrid.1033.resx

Incorrect:

* To start the test harness, you would use the following command:

npm start

This is fast and convenient, but this command will lock your terminal session. For example, if you are doing PCF development in Visual Studio Code, here is what you will see in the terminal window:

Reference:

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

Correct Answer:

Box 1: The combination of Account Number and Account Name must be unique With alternate keys you can now define a column in a Dataverse table to correspond to a unique identifier or unique combination of columns. Box 2: Delete AlternateKey1 and re-create it with all three fields

Correct Answer:

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.

Correct Answer:

Box 1:Contoso, Ltd.

publisher and stackOwner properties

"publisher" is the name of your company or organization. Provide the full company name (for example, "Contoso Corporation"). This must be in alphanumeric format.

"stackOwner" is the owning company or organization of the back-end service stack that the connector is connecting to. This must be in alphanumeric format

Box 2: apiProperties.json

The publisher and stackOwner properties exist as top-level properties within the apiProperties.json file.

Reference:

https://docs.microsoft.com/en-us/connectors/custom-connectors/certification-submission