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質問 # 30
You need to modify the API Customer list code to obtain the required result.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
正解：
解説：
Explanation:
質問 # 31
You need to create the access modifier for IssueTotal.
Which variable declaration should you use?
正解：B
解説：
In Business Central development using AL (the language for Business Central extensions), the use of access modifiers defines how variables and procedures are accessed within and outside of an object or codeunit.
* Access Modifiers in AL:
* Public : A public variable can be accessed from any object or codeunit within the same module or extension.
* Protected : This restricts access to the current object and objects that inherit from the current object. However, in AL (at least in versions used for Business Central), the Protected access modifier is used with methods but not variables.
* Internal : This modifier restricts the visibility to the current extension. This means that variables or methods declared as internal can only be accessed from within the same extension. This is appropriate when you want to provide functionality that is shared within the extension but not exposed externally.
* Local : This restricts the variable or method to the current object or method where it is declared.
It cannot be accessed from anywhere else, even within the same extension.
* Scenario Justification:
* In the scenario for Contoso, Ltd., IssueTotal is a global variable in the ISSUE BASE extension
, and the ISSUE EXT extension needs to access it. Therefore, the variable cannot be declared as Local , because this would restrict access to just the current object (or method).
* Using Public would expose the variable outside of the extension, which is unnecessary because you only want other parts of the extension (specifically the ISSUE EXT extension ) to have access.
* The best choice in this case is Internal because it restricts access to the variable to within the same extension, which includes the base extension and any dependent extensions like ISSUE EXT . It strikes the right balance between visibility and encapsulation.
Microsoft Dynamics 365 Business Central Developer References:
* Access Modifiers in AL : Microsoft ' s documentation on AL provides the details on access modifiers, where it is specified that internal variables can be accessed within the extension, and the public variable is accessible across all extensions # source: Microsoft Learn on AL Programming # .
* Best Practices for AL Development : Business Central development best practices suggest keeping variables internal unless they need to be accessed outside of the current extension # source: Microsoft Learn on AL development guidelines # .
質問 # 32
A company has a task that is performed infrequently. Users often need to look up the procedure to complete the task.
The company requires a wizard that leads users through a sequence of steps to complete the task.
You need to create the page to enable the wizard creation.
Which page type should you use?
正解：C
解説：
For a task that is performed infrequently and requires users to follow a sequence of steps, a wizard-like interface is ideal. In Microsoft Dynamics 365 Business Central, the NavigatePage page type (A) is best suited for this purpose. NavigatePage is designed to guide users through a series of steps or pages, allowing them to complete a task by making choices or entering data in a structured manner. This page type is often used for setup wizards, data migration tasks, or any other process that benefits from a step-by-step approach. Unlike the other page types like Card (B), RoleCenter (C), or List (D), NavigatePage specifically supports the navigation and decision-making flow required for wizard creation, making it the optimal choice for this requirement.
https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-pages-overview
質問 # 33
You create an 'AddltemsToJson" procedure and publish it.
The procedure fails to run.
You need to fix the errors in the code.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
正解：
解説：
質問 # 34
A company owns and operates hotels, restaurants, and stores.
When the staff orders materials from the purchasing department, the requests are not directed to the correct approvers.
The staff requires a new field named Approver from which they can select the appropriate approver. The field must include the following options:
* Hotel manager
* Restaurant manager
* Store manager
* Purchasing manager
You need to create the Approver field in the Item table by using an AL extension.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
正解：
解説：
1 - Create an enum object named Approver and include all options.
2 - Create a table extension object for an Item table with an Approver field of enum type named Approver in the fields section.
3 - Create a page extension object that extends the Item Card object. Add the field to the fields section.
質問 # 35
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