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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q36-Q41):

NEW QUESTION # 36
Universal Containers develops a Salesforce application that requires frequent interaction with an external REST API.
To avoid duplicating code and improve maintainability, how should they implement the APL integration for code reuse?

A. Use a separate Apex class for each API endpoint to encapsulate the integration logic,
B. Create a reusable Apex class for the AFL integration and invoke it from the relevant Apex classes.
C. Include the API integration code directly in each Apex class that requires it.
D. Store the APT integration code as a static resource and reference it in each Apex class.

Answer: B

Explanation:
Creating a reusable Apex class for API integration allows for code encapsulation and maintainability. This class can then be invoked from any other Apex class that requires interaction with the API, preventing code duplication.

NEW QUESTION # 37
A developer is creating a Lightning web component that displays a list of records in a lightning-datatable. After saving a new record to the database, the list is not updating.

What should the developer change in the code above for this to happen?

A. Call rafrasnApex() ON this.dazta.
B. Create a new variable to store the result and annotate it with @track.
C. Add the @track decorator to the data variable.
D. Create a variable to store the result and call refreshpex().

Answer: D

Explanation:
In Lightning Web Components (LWC), the data displayed in a component is not automatically refreshed when a new record is saved to the database. To refresh the displayed list of records in a lightning-datatable after a save operation, developers should use the refreshApex() function. This function is imported from the @salesforce/apex module and is used to refresh the cache and re-execute the Apex wire method to fetch the latest data from the server. The @track decorator is no longer necessary in most cases due to reactive properties being the default behavior in LWC as of Spring '20 release. Also, calling refreshApex() on this.data directly or creating a new tracked variable will not initiate a refresh of the cached data.
ferences:
Get Updated Data with refreshApex()
Lightning Web Components and Salesforce Data

NEW QUESTION # 38
A Visualforce page needs to make a callout to get billing information and tax information from two different REST endpoints. The information needs to be displayed to the user at the same time and the return value of the billing information contains the input for the tax information callout. Each endpoint might take up to two minutes to process.
How should a developer implement the callouts?

A. A Continuation for the billing callout and an HTTP REST callout for the tax callout
B. An HTTP REST callout for both the billing callout and the tax callout
C. A Continuation for both the billing callout and the tax callout
D. An HTTP REST callout for the billing callout and a Continuation for the tax callout

Answer: C

Explanation:
Using Continuation for both callouts is the optimal solution when you have long-running callouts in a Visualforce page, as it allows the page to wait for a long-running process without tying up server resources. The Continuation pattern is specifically designed for scenarios where the request-response cycle could exceed the timeout limits.

NEW QUESTION # 39
Universal Containers needs to integrate with their own, existing, internal custom web application. The web application accepts JSON payloads, resizes product images, and sends the resized images back to Salesforce.
What should the developer use to implement this integration?

A. A flow that calls an @future method that allows callouts
B. A platform event that makes a callout to the web application
C. An Apex trigger that calls an @future method that allows callouts
D. A flow with an outbound message that contains a session ID

Answer: C

Explanation:
In a scenario where an integration requires making a callout to an external web application, Apex is often used to perform callouts. The callout must be asynchronous when being made from a trigger because a callout cannot be made from a synchronous operation like a trigger due to the possibility of long-running transactions.
Option A (An Apex trigger that calls an @future method that allows callouts) is correct because it enables the trigger to perform an asynchronous callout to the external web application, which is necessary for sending JSON payloads and receiving the resized images.
Options B, C, and D do not fit the requirement as well as option A because platform events and flows are typically not used for making direct callouts to external systems in the context described.
Apex Developer Guide: Apex Web Services and Callouts

NEW QUESTION # 40
An org has a requirement that addresses on Contacts and Accounts should be normalized to a company standard by Apex code any time that they are saved.
What is the optimal way to implement this?

A. Apex triggers on Contact and Account that normalize the address
B. Apex trigger on Account that calls the Contact trigger to normalize the address
C. Apex triggers on Contact and Account that call a helper class to normalize the address
D. Apex trigger on Contact that calls the Account trigger to normalize the address

Answer: C

Explanation:
Apex triggers on Contact and Account with a helper class is the best practice for code reuse and maintaining clean trigger logic.

NEW QUESTION # 41
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