Free PDF 2026 Salesforce Efficient PDII: Clearer Platform Developer II Explanation

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Salesforce Platform Developer II Sample Questions (Q16-Q21):

NEW QUESTION # 16
A developer is asked to create a Lightning web component that will be invoked via button on a record page.
The component must be displayed in a model dialog.
Which three steps should the developer take to achieve this?
Choose 3 answers

Answer: B,C,E


NEW QUESTION # 17
A developer is tasked with creating a Lightning web component that allows users to create a Case for a selected product, directly from a custom Lightning page. The input fields in the component are displayed in a non-linear fashion on top of an image of the product to help the user better understand the meaning of the fields. Which two components should a developer use to implement the creation of the Case from the Lightning web component?161718

Answer: B,D

Explanation:
3233
When a requirement specifies a "non-linear" or highl34y customized layout, the high-35level lightning-record- form (A) is unsuitable because it automatically renders fields in a standard grid or based on a page layout. To achieve a custom UI-such as overlaying fields on a product image-the developer needs more granular control.
The lightning-record-edit-form (B) is the ideal container for this scenario. It provides the heavy lifting for data communication (loading and saving records) without imposing a strict visual structure. Within this form, the developer uses lightning-input-field (C) components for each Case field. These components are "context- aware," meaning they automatically inherit metadata like field labels, picklist values, and validation rules directly from the Salesforce object definition.
Because lightning-input-field components can be placed anywhere inside the lightning-record-edit-form tag, the developer can use custom CSS (absolute positioning or CSS Grid) to place them precisely over the product image as requested. Standard lightning-input (D) components could work but would require much more manual code to handle data binding, type conversion, and validation, making the combination of B and C the most efficient and platform-aligned approach.


NEW QUESTION # 18
As part of a custom development, a developer creates a Lightning component to show how a particular opportunity progresses over time.
The component must display the date stamp when any of the following fields change:
* Amount, Probability, Stage, or Close Date
How should the developer access the data that must be displayed?

Answer: B


NEW QUESTION # 19
A developer is writing code that requires making callouts to an external web service. Which scenario necessitates that the callout be made in an @future method?

Answer: D


NEW QUESTION # 20
Refer to the markup below:
HTML
<template>
<lightning-record-form
record-id={recordId}
object-api-name="Account"
layout-type="Full">
</lightning-record-form>
</template>
A Lightning web component displays the Account name and two custom fields out of 275 that exist on the object. The custom fields are correctly declared and populated. However, the developer receives complain2223ts that the component performs slowly. What can the developer d2425o to improve the performance?

Answer: C

Explanation:
The lightning-record-form is a powerful, high-level component that simplifies data entry and display.
However, its performance is heavily influenced by the layout-type attribute. When layout-type="Full" is used, the component fetches and renders every single field defined on the object's "Full" page layout in the Salesforce metadata. In this case, the Account object has 275 fields. Fetching and rendering such a large volume of metadata and data causes a significant performance lag, even if the user only cares about three specific fields.
To improve performance, the developer should switch from a layout-based approach to a field-based approach. By removing the layout-type attribute and adding the fields attribute (Option A), the developer can pass an array of only the specific field API names required (e.g., ['Name', 'CustomField1__c',
'CustomField2__c']). This drastically reduces the amount of data requested from the Lightning Data Service (LDS) and minimizes the DOM elements the browser needs to render. Option C is incorrect because "Partial" is not a valid value for layout-type; the only supported values are "Full" and "Compact". Option B only affects the visual spacing of the fields and does not reduce the data load. Option A is the direct and most effective way to optimize component responsiveness by limiting the data scope.


NEW QUESTION # 21
......

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