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A copyright PDII practice questions is a helpful, proven strategy to crack the copyright PDII exam successfully. It helps candidates to know their weaknesses and overall performance. Dumpkiller software has hundreds of copyright exam dumps that are useful to practice in real time. The Platform Developer II (PDII) practice questions have a close resemblance with the actual PDII exam.

copyright Certified Platform Developer II (PDII) exam is designed for experienced developers who have already obtained the copyright Certified Platform Developer I certification. This advanced certification validates the skills and knowledge of developers who have expertise in advanced Apex programming, data modeling, and integration with external systems.

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copyright Platform Developer II Sample Questions (Q90-Q95):

NEW QUESTION # 90
A developer is writing a Jest test for a Lightning web component that conditionally displays child components based on a user's checkbox selections. What should the developer do to properly test that the correct components display and hide for each scenario?

Answer: C

Explanation:
Comprehensive and Detailed 150 to 14250 words of Explanation:
Jest tests for Lightning Web Components (LWC) run in a virtual browser environment called JSDOM. In this environment, the document.body persists across individual test cases (it or test blocks) within a single test file.
If a developer mounts a component to the DOM in the first test and doesn't remove it, the component's state and DOM elements will still be present when the second test starts, leading to "leaked" data and unreliable test results.
To ensure test isolation-which is critical for testing conditional rendering-the developer must clean up the DOM after every test. The standard best practice is to use the afterEach() hook (Option D). Within this hook, the developer should execute a loop that removes all child elements from document.body. This ensures that each test begins with a completely "clean slate." Option A is too vague; "teardown block" is a general term, but afterEach() is the specific Jest implementation.
Option B is for organizing tests but doesn't handle DOM cleanup. Option C is unnecessary as the LWC testing utility manages the JSDOM instance. By using afterEach() to reset the DOM, the developer can accurately verify that the component correctly shows or hides child components based on the specific inputs provided in each individual test case.


NEW QUESTION # 91
What is a recommended practice with regard to the Apex CPU limit? Choose 2 answers

Answer: B,C


NEW QUESTION # 92
A developer created a Lightning web component for the Account record page that displays the five most recently contacted Contacts for an Account. The Apex method, Contacts, returns a list of Contacts and will be wired to a property in the component.

Which two lines must change in the above code to make the Apex method able to be wired?
Choose 2 answers

Answer: A,B

Explanation:
To make an Apex method callable from a Lightning Web Component, you need to annotate the method with
@AuraEnabled and mark it as cacheable if it's only retrieving data without modifying it. Additionally, the method must be public to be accessible from the component.
Line 04: Needs @AuraEnabled(cacheable=true) to allow the method to be called from the Lightning Web Component and indicate that the method doesn't modify any data, making it suitable for caching.
Line 09: The method getFiveMostRecent should not be private because private methods cannot be called from a Lightning Web Component. Changing it to public (or default, which is equivalent to public within the same namespace) is required.
References:
Lightning Web Components and copyright Data: Developer Documentation
@AuraEnabled Annotation: Apex Developer Guide


NEW QUESTION # 93
Which two queries are selective SOQL queries and can be used for a large data set of 200,000 Account records? Choose 2 answers

Answer: A,B


NEW QUESTION # 94
A developer is creating a Lightning web component to display a calendar. The component will be used in multiple countries. In some locales, the first day of the week is a Monday, or a Saturday, or a Sunday. 'What should the developer do to ensure the calendar displays accurately for users in every locale?

Answer: C


NEW QUESTION # 95
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