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copyright Certified Platform Developer II - Multiple Choice Sample Questions (Q98-Q103):

NEW QUESTION # 98
A developer needs to store variables to control the style and behavior of a Lightning Web Component.
Which feature can be used to ensure that the variables are testable in both Production and all Sandboxes?

Answer: B

Explanation:
Custom metadata types are the best feature for storing variables that control style and behavior of a Lightning Web Component. Unlike custom settings, custom metadata is deployable and testable in both Production and all Sandboxes.


NEW QUESTION # 99
Refer to the test method below:

The test method tests an Apex trigger that the developer knows will make a lot of queries when a lot of Accounts are simultaneously updated to be customers. The test method fails at the Line 20 because of too many SOQL queries. What is the correct way to fix this? A)

B)

C)

D)

Answer: D

Explanation:
The correct way to fix this is to add Test.startTest() before and add Test.stopTest() after Line 18 of the code. This will reset the governor limits for the code that executes between these two methods, and allow the test to run without hitting the SOQL query limit.The Test.startTest() and Test.stopTest() methods are used to test code that makes a lot of queries or calls asynchronous methods12. By using these methods, the developer can isolate the code that needs more resources and verify that it does not exceed the governor limits.
:
Using Limits, startTest, and stopTest | Apex Developer Guide | copyright Developers Test.StartTest & Test.StopTest - copyright Developer Community Why would a developer use test startTest and test stopTest in copyright? | ForceTalks


NEW QUESTION # 100
A company has a custom object, Order__c, that has a custom picklist field, Status__c, with values of `"New', `"In Progress', or `"Fulfilled' and a lookup field, Contact__c, to Contact.
Which SOQL query will return a unique list of all the Contact records that have no `"Fulfilled' Orders?

Answer: D

Explanation:
The correct SOQL query to return a unique list of Contact records that have no 'Fulfilled' Orders is one that selects Ids from the Contact object where the Contact Id is not in the set of Contact Ids related to 'Fulfilled' Orders. This is done by a subquery that selects the Contact__c field from the Order__c records where the Status__c is 'Fulfilled'.


NEW QUESTION # 101
A company has many different unit test methods that create Account records as part of their data setup. A new required field was added to the Account and now all of the unit tests fail.
What is the optimal way for a developer to fix the issue?

Answer: A

Explanation:
The optimal way to fix the failing unit tests after adding a new required field to the Account object is to create a TestDataFactory class that serves as a centralized place to create Accounts for unit tests. This class would include the new required field, ensuring that all unit tests have the necessary data setup.


NEW QUESTION # 102
What is a benefit of JavaScript remoting over Visualforce Remote Objects?

Answer: D

Explanation:
JavaScript remoting in Visualforce allows for the execution of complex server-side application logic without the need to refresh the entire page, providing a more dynamic user experience. It supports more complex operations than Visualforce Remote Objects, which are intended for basic CRUD operations.


NEW QUESTION # 103
......

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