X++ Programming Fundamentals - D365 F&O Technical - Quiz

Among the following which one is not a valid identifier?

AY12
BSum_1
C_temperature
D4th

I have a Enum named Criteria. Can I create an array of Criteria enums like below?


    //An array of Criteria enums 
    Criteria crit[100];

AYes
BNo

In X++ programming, how can you reference a base enum element's associated label?

A By using the element's index
B By converting the enum to a string
C By directly using the element name
D By creating a switch-case statement

Predict the output of the following Java code:


class MCQ
{
	public static void main(String args[])
	{
		MCQ mcq = new MCQ();
		mcq.test(12);
	}

	void test(int n){

		for(int x= 1; x <= n; x++)
		  if(n%x == 0)
		    System.out.print(x+" ");
	}
}

A1 2 3 4 6 12
B1 2 3 4 6 12 13
C1 2 4 6 12
D1 2 3 6 12

If 'while loop" is used within a "while loop", is called a ............ loop.

Anested while
Bnested do while
Cnested for
Dsimple loop

You are setting up a data migration process from a legacy system to Microsoft Dynamics 365 finance and operations apps. The legacy system contains complex customer and vendor data that needs to be migrated while ensuring data integrity and minimal downtime.

You need to ensure that the data import process can handle errors effectively without halting the entire process.

What should you do? Each correct answer presents a complete solution. Choose three.

AUse the data management framework to create a data project and set up a recurring data job with error handling to skip faulty records.
BEnable change tracking for entities in the data management framework to monitor the status and availability of entities during the import process.
CImplement an asynchronous integration pattern using the data management framework to sequence data entities and manage import errors.
DA, B and C

Your company is planning to implement custom services in their finance and operations apps.

You need to identify the component of the Application platform model that enables the development of custom services.

Which component should you use?

AWorkflow and services
BClient and Presentation
CSSRS reporting
DRuntime and Data access

You are working on a finance and operations app. You have a custom table called BankCheque with two fields BankAccount and CheckNo.

You need to run a user interface-driven process to add 100 new check numbers, starting from 10000, by using the sandbox framework without freezing the web client.

What should you do?

ACreate a new class with business logic to create 100 new check numbers and use SysOperationSandbox to run the AsyncInfo static method.
BUse batch processes to perform the task.
CRun the process in synchronous mode in the web client.
DCreate a new form and add a button without using SysOperationSandbox.

Give the output of the following string functions:

"LANGUAGE".replace('A', '0'); "PROGRAM".compareTo("Program");

A1. LONGUOGE 2. -32
BL0NGU0GE 2. -32
C1. Languoge 2. 32
D1. LANGUOGE 2. 30

A company is implementing Dynamics 365 Finance.

A new data entity extension with new fields is deployed to a test environment.

After deployment, the new fields in the data entity do not appear on the entity.

You need to make the new changes to the data entities visible.

Which option should you use?

Select only one answer.

ARefresh entity list
BTruncate entity list
CGenerate mapping
DConfigure entity execution parameters

Quiz Information

X++ Programming Fundamentals - D365 F&O Technical - Quiz

Guest User

Time Taken:

Questions: Answered: Not Answered:

Correct Answer:

Wrong Answer:

Percentage: %

Q: Among the following which one is not a valid identifier?

A. Y12
B. Sum_1
C. _temperature
D. 4th

Correct Option: D
Remarks:

Explanation: 4th

Q: I have a Enum named Criteria. Can I create an array of Criteria enums like below?


    //An array of Criteria enums 
    Criteria crit[100];

A. Yes
B. No

Correct Option: A
Remarks:

Explanation:

You must create an enum type in the AOT before you can declare it.

Enum declaration	=	enumname Variable { , Variable } ;
Variable	=	identifier [ option ]
Option	=	[ [ Length ] [, Memory ] ] \| initialization

Read More: Base enums in D365 F&O

Q: In X++ programming, how can you reference a base enum element's associated label?

A. By using the element's index
B. By converting the enum to a string
C. By directly using the element name
D. By creating a switch-case statement

Correct Option: B
Remarks:

Explanation:

To reference a base enum element's associated label in X++, you can convert the enum element to a string using the strFmt function or the enum2str function. This allows you to retrieve the user-friendly label associated with the enum element, enhancing the readability and clarity of your code.

Q: Predict the output of the following Java code:


class MCQ
{
	public static void main(String args[])
	{
		MCQ mcq = new MCQ();
		mcq.test(12);
	}

	void test(int n){

		for(int x= 1; x <= n; x++)
		  if(n%x == 0)
		    System.out.print(x+" ");
	}
}

A. 1 2 3 4 6 12
B. 1 2 3 4 6 12 13
C. 1 2 4 6 12
D. 1 2 3 6 12

Correct Option: A
Remarks:

Explanation:

Class and Main Method:
- The class MCQ contains the main method, which is the entry point for the program.
- Inside the main method, an instance of MCQ is created, and the test method is called with the argument 12.
Method test:
- The test method takes an integer n as a parameter.
- It iterates through numbers from 1 to n (inclusive) using a for loop.
- Inside the loop, it checks if n is divisible by x using the condition if (n % x == 0).
- If the condition is true, it prints the value of x followed by a space.
Output Calculation:
- The test method is called with n = 12.
- The loop iterates from 1 to 12 and checks for divisibility.
- The numbers that divide 12 without leaving a remainder (i.e., the factors of 12) are 1, 2, 3, 4, 6, and 12.

Iteration	`x` Value	Condition `x <= n`	Condition `n % x == 0`	Action
1	1	true	true	Print `1`
2	2	true	true	Print `2`
3	3	true	true	Print `3`
4	4	true	true	Print `4`
5	5	true	false	Do nothing
6	6	true	true	Print `6`
7	7	true	false	Do nothing
8	8	true	false	Do nothing
9	9	true	false	Do nothing
10	10	true	false	Do nothing
11	11	true	false	Do nothing
12	12	true	true	Print `12`
13	13	false	-	Loop ends

Q: If 'while loop" is used within a "while loop", is called a ............ loop.

A. nested while
B. nested do while
C. nested for
D. simple loop

Correct Option: A
Remarks:

Explanation:

If a 'while loop' is used within a 'while loop', it is called a nested while loop.

Q:
You are setting up a data migration process from a legacy system to Microsoft Dynamics 365 finance and operations apps. The legacy system contains complex customer and vendor data that needs to be migrated while ensuring data integrity and minimal downtime.

You need to ensure that the data import process can handle errors effectively without halting the entire process.

What should you do? Each correct answer presents a complete solution. Choose three.

A. Use the data management framework to create a data project and set up a recurring data job with error handling to skip faulty records.
B. Enable change tracking for entities in the data management framework to monitor the status and availability of entities during the import process.
C. Implement an asynchronous integration pattern using the data management framework to sequence data entities and manage import errors.
D. A, B and C

Correct Option: D
Remarks:

Explanation:

Wrong: Manually import data entity files one at a time to isolate and address errors, disregarding the use of the data management framework.

Wrong: Configure the data management framework to halt the entire import process upon encountering any errors, ensuring no faulty data is migrated.

The correct answer is to use the data management framework to create a data project and set up a recurring data job with error handling to skip faulty records, enable change tracking for entities in the data management framework to monitor the status and availability of entities during the import process, and implement an asynchronous integration pattern using the data management framework to sequence data entities and manage import errors. Manually importing data entity files one at a time is time-consuming and does not utilize the capabilities of the data management framework. Configuring the data management framework to halt the entire import process upon encountering any errors does not meet the requirement of skipping faulty records

Data management overview - Finance & Operations | Dynamics 365 | Microsoft Learn

Export, import, and copy data into a legal entity - Training | Microsoft Learn

Q:
Your company is planning to implement custom services in their finance and operations apps.

You need to identify the component of the Application platform model that enables the development of custom services.

Which component should you use?

A. Workflow and services
B. Client and Presentation
C. SSRS reporting
D. Runtime and Data access

Correct Option: A
Remarks:

Explanation:

The 'Workflow and services' component of the Application platform model enables users to develop custom services, making it the correct choice. 'Runtime and Data access' is related to the communication with the kernel, not services. 'Client and Presentation' deals with the user interface, not services. 'SSRS reporting' is used for developing reports, not services.

Application components and architecture - Training | Microsoft Learn

Q:
You are working on a finance and operations app. You have a custom table called BankCheque with two fields BankAccount and CheckNo.

You need to run a user interface-driven process to add 100 new check numbers, starting from 10000, by using the sandbox framework without freezing the web client.

What should you do?

A. Create a new class with business logic to create 100 new check numbers and use SysOperationSandbox to run the AsyncInfo static method.
B. Use batch processes to perform the task.
C. Run the process in synchronous mode in the web client.
D. Create a new form and add a button without using SysOperationSandbox.

Correct Option: A
Remarks:

Explanation:

Option A is correct because the SysOperationSandbox framework allows you to run a synchronous operation on the asynchronous session that's happening on the web client. This will prevent the web client from freezing. Option B is incorrect because batch processes are used for lengthy tasks that are implemented on the batch servers, not for user interface-driven processes. Option C is incorrect because running the process in synchronous mode in the web client will freeze the web browser until the process completes. Option D is incorrect because simply creating a new form and adding a button will not solve the problem of the web client freezing.

Implement the SysOperationSandbox framework - Training | Microsoft Learn

The user interface - Training | Microsoft Learn

Use X++ runtime functions for common tasks - Training | Microsoft Learn

Q: Give the output of the following string functions:

"LANGUAGE".replace('A', '0'); "PROGRAM".compareTo("Program");

A. 1. LONGUOGE 2. -32
B. L0NGU0GE 2. -32
C. 1. Languoge 2. 32
D. 1. LANGUOGE 2. 30

Correct Option: B
Remarks:

Explanation:

Explanation:

"LANGUAGE".replace('A', '0');

Replaces all occurrences of 'A' with '0' in the string.

Result: "L0NGU0GE".

"PROGRAM".compareTo("Program");

Compares the strings lexicographically.

Java uses ASCII values, and the difference in case ('P' in uppercase vs. 'p' in lowercase) gives -32.

Q:
A company is implementing Dynamics 365 Finance.

A new data entity extension with new fields is deployed to a test environment.

After deployment, the new fields in the data entity do not appear on the entity.

You need to make the new changes to the data entities visible.

Which option should you use?

Select only one answer.

A. Refresh entity list
B. Truncate entity list
C. Generate mapping
D. Configure entity execution parameters

Correct Option: A
Remarks:

Explanation:

When you extend a data entity in Dynamics 365 Finance (for example, by adding new fields), these changes may not appear immediately in the Data Management framework.

To make the changes visible and usable, you need to:

✔ Use the "Refresh entity list" function in the Data Management workspace.

This action:

Refreshes metadata for all data entities.
Ensures that the new fields or extensions are recognized by the system.
Makes the entity ready for further actions like export, import, or mapping.

❌ Incorrect Options:

Truncate entity list
❌ Deletes records from the staging or execution tables — not related to metadata or field visibility.
Generate mapping
❌ Used after the entity is already recognized and you're mapping source/target fields, but won't make new fields visible if the entity list isn’t refreshed first.
Configure entity execution parameters
❌ Deals with execution settings (like batch size), not metadata or visibility of new fields.

✅ Final Answer:

✔ Refresh entity list

X++ Programming Fundamentals - D365 F&O Technical - Quiz

Among the following which one is not a valid identifier?

I have a Enum named Criteria. Can I create an array of Criteria enums like below? //An array of Criteria enums Criteria crit[100];

In X++ programming, how can you reference a base enum element's associated label?

Predict the output of the following Java code: class MCQ { public static void main(String args[]) { MCQ mcq = new MCQ(); mcq.test(12); } void test(int n){ for(int x= 1; x <= n; x++) if(n%x == 0) System.out.print(x+" "); } }

If 'while loop" is used within a "while loop", is called a ............ loop.

Your company is planning to implement custom services in their finance and operations apps. You need to identify the component of the Application platform model that enables the development of custom services. Which component should you use?

Give the output of the following string functions: "LANGUAGE".replace('A', '0'); "PROGRAM".compareTo("Program");

I have a Enum named Criteria. Can I create an array of Criteria enums like below?

Predict the output of the following Java code:

Your company is planning to implement custom services in their finance and operations apps.

You need to identify the component of the Application platform model that enables the development of custom services.

Which component should you use?

Give the output of the following string functions:

"LANGUAGE".replace('A', '0'); "PROGRAM".compareTo("Program");