A developer is creating an extension that adds a new table to store company settings. The extension must populate the table with default values when it is first installed. The developer wants to ensure this setup runs only once during installation, not on every upgrade. Which type of codeunit should the developer create?

Normal codeunit with a setup procedure

A developer is building an extension that integrates with multiple payment gateways. Each gateway has a different API, but the developer wants to create a uniform way to process payments. The solution must allow adding new gateways in the future without changing the core payment processing code. Which approach should the developer use?

Create a table to store gateway configurations and use a generic procedure.

Create a single codeunit with a CASE statement for each gateway.

Use events to publish payment requests and have each gateway subscribe.

Define an interface for payment processing and implement it in separate codeunits for each gateway.

What is the purpose of an upgrade codeunit in AL?

To manage user permissions during upgrades

To perform setup tasks during initial installation

To define the user interface for the upgrade process

To handle data and schema changes during app upgrades

What is the purpose of an installation codeunit in AL?

To handle data upgrades when an app is updated

To define the user interface for the installation wizard

To manage user permissions during installation

To perform setup tasks when an app is installed

Microsoft Certified:Dynamics 365 Business Central Developer Associate

Domain 3Objective 4

Develop Codeunits MB-820 Practice Questions (Page 4)

Part of the Develop by using AL objects domain, which accounts for 35–40% of the MB-820 exam. Microsoft does not publish an official question count, but from its 100-minute exam (~40–65 total, ~14–26 in this domain), expect 2–4 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

7concepts

35–40%of the exam

Questions 16–20

16foundation · easy
Which property is used to designate a codeunit as an upgrade codeunit?
Select an answer first
17application · medium
A developer is creating an extension that adds a new table to store company settings. The extension must populate the table with default values when it is first installed. The developer wants to ensure this setup runs only once during installation, not on every upgrade. Which type of codeunit should the developer create?
Select an answer first
18application · medium
A developer is building an extension that integrates with multiple payment gateways. Each gateway has a different API, but the developer wants to create a uniform way to process payments. The solution must allow adding new gateways in the future without changing the core payment processing code. Which approach should the developer use?
Select an answer first
19foundation · easy
What is the purpose of an upgrade codeunit in AL?
Select an answer first
20foundation · easy
What is the purpose of an installation codeunit in AL?
Select an answer first

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Develop Codeunits MB-820 Practice Questions (Page 4)

Questions 16–20

Which property is used to designate a codeunit as an upgrade codeunit?

What is the purpose of an upgrade codeunit in AL?

What is the purpose of an installation codeunit in AL?

Keep studying — Develop by using AL objects