LDS Questions Salesforce

1. What is Lightning Data Service (LDS) primarily used for in Salesforce?

• A) Creating custom UI components

• B) Managing server-side logic

• C) Loading, creating, editing, and deleting records without Apex

• D) Automating workflow rules

2. Which base Lightning component is used to fetch a record using LDS?

• <lightning-record-view-form>

• <lightning-data-table>

• <force:recordData>

• <lightning-record-edit-form>

What advantage does LDS offer over Apex-based data handling?

• A) Requires more code

• B) Improves performance and reduces API calls

• C) Only works in Classic mode

• D) Requires manual cache management

What is the main purpose of the recordId property in LDS-based components?

• A) It is used to store metadata

• B) It specifies which object to use

• C) It uniquely identifies the record to fetch, edit, or delete

• D) It is used for defining field-level security

Which Lightning component allows inline record editing using LDS?

• B) <lightning-input>

• A) <lightning-record-edit-form>

• C) <lightning-output-field>

• D) <lightning-record-view-form>

What is the correct way to load a record using LDS in JavaScript?

• A) Use Apex methods to fetch data

• B) Use the getRecord wire adapter from lightning/uiRecordApi

• C) Use REST API to fetch records

• D) Use SOQL queries in JavaScript

What method is used to update a record in LDS?

• B) saveRecord(recordId)

• A) updateRecord(recordInput)

• C) refreshApex(recordId)

• D) modifyRecord(recordData)

What is a key benefit of using LDS instead of Apex for data manipulation?

• A) LDS supports bulk processing

• B) LDS bypasses object security

• C) LDS automatically enforces field-level security and sharing rules

• D) LDS allows direct SOQL queries in JavaScript

How does LDS improve record loading performance?

• B) By bypassing Salesforce Governor Limits

• A) By storing records in a cache and reducing server calls

• C) By using custom Apex triggers

• D) By allowing direct database modifications

Which API module provides LDS functionality for handling records?

• A) lightning/uiRecordApi

• B) lightning/lds

• C) force/ldsApi

• D) salesforce/uiApi