Free Practice Questions for Salesforce PDII Exam

To make a Lightning web component available in the Lightning App Builder, the developer must specify the target where the component can be placed (e.g., record pages) in the .xml file and set the isExposed attribute to true. References: Expose Lightning Web Components for Flow Screens, Quick Actions, App Builder, and Experience Builder

To optimize the code's efficiency when assigning users to the Account's Auditor field based on the audit code, the following changes should be considered:

B. Building a map of audit code to accounts (Map<string, List<Account>>) would allow for efficient grouping of accounts by their audit code. This would make it easier to process accounts with the same audit code in a single operation, reducing the number of SOQL queries and DML operations needed.

D. Adding a WHERE clause to the SOQL query to filter on audit codes would limit the number of records returned by the query. This means the code only processes relevant User records with matching audit codes, thereby reducing the processing time and memory consumption.

Option A is not recommended because querying for all distinct audit codes without any context of the accounts being processed could be inefficient. Option C is less effective because it would involve creating a mapping of Account Ids to audit codes, which doesn't aid in the efficient assignment of auditor to accounts.

To improve the performance of an Aura component that is loading slowly, the developer can make the following change:

D. Change the default for showContactInfo to “False": By setting the default value of showContactInfo to False, the component does not fetch or render the contact information by default, which can reduce the initial load time. The information can be fetched and displayed later based on user action or other triggers.

Changing the type of contactInfo to "Map" (Option A) or moving the contents of <c:contactInfo> into the component (Option B) may not necessarily improve load times. Adding a change event handler for showContactInfo (Option C) adds more processing and can potentially slow down the component if not handled efficiently.

The optimal way to integrate invoice data into Salesforce, allowing for the upsert operation which can insert or update records based on the presence of the External ID, is to use the External ID fields. This ensures that the invoices are associated correctly with the existing Accounts and that upsert operations can be performed efficiently.

Salesforce CLI with Salesforce DX supports source-driven development and is designed for continuous integration and delivery (CI/CD) processes. It enables developers to automate deployments across multiple environments, including sandbox and production.

The requirement is for the Lightning web component to display in one column on phones and in two columns on larger devices. To achieve this, we should specify the size attributes for different devices using the design tokens provided by the Lightning Design System.

Option B is correct because size="6" will set each lightning-layout-item to take up half the available space (since the grid system is based on a 12-column structure), creating two columns on tablets, desktops, and larger devices. small-device-size="12" will ensure that on small devices like phones, each item will take up the full width, resulting in a single column.

Options A, C, and D do not meet the requirement correctly, as they either do not set the size correctly for small devices or do not specify the sizes for both small and larger devices appropriately.

The optimal way to enforce the exclusion of blocked domains for email addresses entered into Contacts and a custom object is to use a helper class. The class can be called by an Apex trigger on the Contact object and from the controller of the custom Visualforce page used for the Survey Response. This centralizes the logic for maintainability and reusability.

Salesforce CLI with Salesforce DX is the best tool for managing a source-driven deployment process. It facilitates version control, scriptable deployment, and rollback, and is optimized for collaboration and continuous integration.

Lazy loading is a strategy to improve the performance of a Visualforce page that loads a large amount of data. By loading the data on demand, rather than in the controller's constructor, the initial page load is faster, and additional data is only loaded when necessary.

Application Events in Aura components are used for communication between components that are not in the same containment hierarchy. An application event to alert users about the arrival of a guest at the front desk is appropriate because it allows any component within the app to listen and respond to the event, regardless of where it is located in the component hierarchy.