A Business Central extension must call an external REST API that requires OAuth2 authentication. The token is obtained from a separate endpoint and expires every hour. The developer needs to implement the token refresh logic. Which approach is most maintainable and efficient?

Store the token and its expiry time in a table, and refresh it only when the stored token is about to expire.

Store the token in a global variable and refresh it only when the API returns a 401 response.

Request a new token for every API call without storing it.

Hard-code the token in the extension code and update it manually when it expires.

Microsoft Certified:Dynamics 365 Business Central Developer Associate

Domain 6Objective 1

Access Representational State Transfer (REST) Services from Within Business Central MB-820 Practice Questions (Page 4)

Part of the Integrate Business Central with other applications domain, which accounts for 10–15% of the MB-820 exam. Microsoft does not publish an official question count, but from its 100-minute exam (~40–65 total, ~4–10 in this domain), expect 2–5 from this objective — we provide 19 practice questions to prepare you well beyond it. (estimate)

19questions here

4free pages

8concepts

10–15%of the exam

Questions 16–19

16foundation · easy
Which AL class is used to read or write the body content of an HTTP request or response?
Select an answer first
17foundation · easy
Which AL class represents the response received from an HTTP request?
Select an answer first
18foundation · easy
In JSON, which data type is used to represent a true or false value?
Select an answer first
19expert · hard
A Business Central extension must call an external REST API that requires OAuth2 authentication. The token is obtained from a separate endpoint and expires every hour. The developer needs to implement the token refresh logic. Which approach is most maintainable and efficient?
Select an answer first

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Access Representational State Transfer (REST) Services from Within Business Central MB-820 Practice Questions (Page 4)

Questions 16–19

Which AL class is used to read or write the body content of an HTTP request or response?

Which AL class represents the response received from an HTTP request?

In JSON, which data type is used to represent a true or false value?

A Business Central extension must call an external REST API that requires OAuth2 authentication. The token is obtained from a separate endpoint and expires every hour. The developer needs to implement the token refresh logic. Which approach is most maintainable and efficient?

Keep studying — Integrate Business Central with other applications