What is the scope of a variable declared inside a procedure in AL?

Accessible from any procedure in the same object

A developer is writing an AL extension that imports sales orders from an external system. The import process must insert multiple Sales Header records and their lines. If any record fails validation, the entire import must be rolled back, and the user must see a clear error message. The developer has wrapped the code in a try-catch block. What should the developer do inside the catch block to ensure the transaction is rolled back and the error is shown?

Call the Error() method with the message, which automatically rolls back the transaction.

Call the Rollback() method, then call the Error() method with the message.

Call the Clear() method on the record variables and then return from the procedure.

Call the LogMessage() method to record the error and continue processing the next record.

A developer is writing an AL expression to calculate the total price of a sales line, including tax. The line has Quantity (Integer), UnitPrice (Decimal), and TaxRate (Decimal, e.g., 0.20 for 20%). Which expression correctly calculates the total price including tax?

TotalPrice := Quantity * UnitPrice * (1 + TaxRate);

TotalPrice := Quantity * (UnitPrice + TaxRate);

TotalPrice := Quantity * UnitPrice * TaxRate;

TotalPrice := Quantity * UnitPrice + TaxRate;

Microsoft Certified:Dynamics 365 Business Central Developer Associate

Domain 4Objective 3

Use AL to Extend Business Central MB-820 Practice Questions (Page 3)

Part of the Develop by using AL domain, which accounts for 15–20% of the MB-820 exam. Microsoft does not publish an official question count, but from its 100-minute exam (~40–65 total, ~6–13 in this domain), expect 2–4 from this objective — we provide 33 practice questions to prepare you well beyond it. (estimate)

33questions here

7free pages

10concepts

15–20%of the exam

Questions 11–15

11foundation · easy
What is the scope of a variable declared inside a procedure in AL?
Select an answer first
12foundation · easy
Which of the following is a valid AL variable declaration?
Select an answer first
13application · medium
A developer is writing an AL extension that imports sales orders from an external system. The import process must insert multiple Sales Header records and their lines. If any record fails validation, the entire import must be rolled back, and the user must see a clear error message. The developer has wrapped the code in a try-catch block. What should the developer do inside the catch block to ensure the transaction is rolled back and the error is shown?
Select an answer first
14application · easy
A developer is writing an AL expression to calculate the total price of a sales line, including tax. The line has Quantity (Integer), UnitPrice (Decimal), and TaxRate (Decimal, e.g., 0.20 for 20%). Which expression correctly calculates the total price including tax?
Select an answer first
15foundation · easy
Which AL function is used to write a line of text to a file?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to MB-820

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Microsoft. “MB-820” is a trademark of its owner, used for identification only.

Use AL to Extend Business Central MB-820 Practice Questions (Page 3)

Questions 11–15

What is the scope of a variable declared inside a procedure in AL?

Which of the following is a valid AL variable declaration?

A developer is writing an AL expression to calculate the total price of a sales line, including tax. The line has Quantity (Integer), UnitPrice (Decimal), and TaxRate (Decimal, e.g., 0.20 for 20%). Which expression correctly calculates the total price including tax?

Which AL function is used to write a line of text to a file?

Keep studying — Develop by using AL