SAGUNA CONSULTING SERVICES Salesforce Lead Interview Questions and Answers

Lifecycle hooks in LWC are methods that allow developers to interact with the component lifecycle at specific points.

• Lifecycle hooks include connectedCallback, disconnectedCallback, renderedCallback, errorCallback, and others.

• connectedCallback is called when a component is inserted into the DOM.

• disconnectedCallback is called when a component is removed from the DOM.

• renderedCallback is called after the component's templ...read more

Security model refers to the framework that controls access to data within a system.

• Defines who can access what data

• Includes roles, profiles, and permissions

• Ensures data integrity and confidentiality

• Can be customized to meet specific security requirements

Child to parent communication can be achieved in Salesforce using lookup relationships or formula fields.

• Create a lookup relationship field on the child object that references the parent object

• Use formula fields to display parent information on the child record

• Utilize cross-object formulas to display parent fields on related lists or reports

Master Detail is a strict parent-child relationship where the child record is deleted when the parent record is deleted. Lookup is a looser relationship where the child record can exist without the parent record.

• Master Detail is a required relationship, while Lookup is not required.

• Master Detail relationship helps in maintaining data integrity by enforcing referential integrity, while Lookup does not enforce referentia...read more

Org wide Default is the baseline level of access that all users have to records in Salesforce.

• Org wide Default determines the default level of access to records for all users in an organization

• It can be set to Private, Public Read Only, Public Read/Write, or Controlled by Parent

• Org wide Default settings can be adjusted in the Sharing Settings of Salesforce

• For example, setting Org wide Default to Public Read Only allows

LWC to display contacts associated to an account

• Create an Apex class to fetch contacts associated with the account

• Use Lightning Data Service to retrieve account details

• Display contacts in a Lightning web component using HTML and CSS

Use trigger to update child record field from parent record

• Create a trigger on the parent object

• Query for the child records related to the parent record

• Update the field on the child records with the desired value

Write a trigger to update a field on child record with default value if it is the only child of parent

• Create a trigger on the child object

• Query for the parent record and check if it has only one child record

• If the parent has only one child, update the field on the child record with the default value