HCL Group Salesforce Developer Interview Questions and Answers

It was easy and basic

Coding questions are bit complicated

Q1. Salesforce platform questions
Add your answer
Q2. Basic hr questions and project based question
Add your answer

Q1. Trigger to display all contacts on an account
Add your answer
Q2. Diff bw 15 to 18 digits id
Add your answer

Basic Apex coding questions

Q1. Technical Scenerio in LWC
Add your answer
Q2. Basic sceneries in Apex sharing
Ans. 
Apex sharing allows developers to control access to records based on criteria.
• Apex sharing rules can be used to extend sharing access beyond the organization-wide defaults.

• Apex managed sharing allows developers to programmatically share records with specific users or groups.

• Sharing reasons can be used to define the reason for sharing a record in Apex.

• Apex sharing can be enforced using the 'with sharing' keyword in Apex
Answered by AI
Add your answer

Q1. Life Cycle hook in LWC
Ans. 
Life Cycle hooks in LWC are methods that allow you to interact with the component at specific stages of its lifecycle.
• There are four main life cycle hooks in LWC: connectedCallback, disconnectedCallback, renderedCallback, and errorCallback.

• 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 com...read more
Answered by AI
Add your answer
Q2. In how many ways we can Communicate between component
Ans. 
There are multiple ways to communicate between components in Salesforce, including using events, public properties, and Apex methods.
• Using events to communicate between components

• Passing data through public properties

• Invoking Apex methods to share data
Answered by AI
Add your answer
Q3. Outbound integration
Add your answer
Q4. After having Read, Write permission on the object what will be the reason that user can't see all record.
Add your answer

Q1. Can we call future method from batch class
Ans. 
Yes, future methods can be called from a batch class in Salesforce.
• Future methods can be called from batch classes to perform asynchronous processing.

• This can be useful for offloading long-running tasks to future methods to avoid hitting governor limits.

• Example: Calling a future method from a batch class to update records in Salesforce asynchronously.
Answered by AI
Add your answer
Q2. What's the use of @track decorator. Is it mandatory to explicitly use it? If yes, for which use case?
Ans. 
The @track decorator in Salesforce is used to track changes to a property in a Lightning web component.
• Used to make a property reactive and trigger re-renders when its value changes

• Not mandatory but recommended for properties that need to be reactive

• Use @track when you want changes to a property to be reflected in the UI
Answered by AI
Add your answer
Q3. When does APEX CPU Limit Exceeded error happens. What's the best practice to avoid getting this error?
Ans. 
APEX CPU Limit Exceeded error happens when code consumes too much CPU time. Best practices include optimizing code, reducing loops, and using asynchronous processing.
• Avoid using nested loops and optimize code for better performance

• Use asynchronous processing like @future or Queueable to offload CPU intensive tasks

• Limit the use of SOQL queries inside loops to reduce CPU consumption
Answered by AI
Add your answer
Q4. When does Mixed DML Exception occurs?
Ans. 
Mixed DML Exception occurs when DML operations are performed on setup and non-setup objects in a single transaction.
• Occurs when DML operations are performed on both setup and non-setup objects in a single transaction

• Setup objects include User, Profile, PermissionSet, etc.

• Non-setup objects include custom objects, standard objects like Account, Contact, etc.
Answered by AI
Add your answer
Q5. Debug the following code: var a=10; function abc() { console.log(a); var a=2; } abc();
Ans. 
The code will output 'undefined' because variable 'a' is hoisted within the function.
• Variable 'a' is hoisted to the top of the function scope, so when 'console.log(a)' is called, 'a' is undefined.

• To fix this, move the declaration of 'var a=2;' above the 'console.log(a);' statement.
Answered by AI
Add your answer
Q6. Write a SOQL query to fetch the values of description field from the Account. Why does "the description field cannot be filtered in the query call"?
Ans. 
SOQL query to fetch description field from Account and reason for inability to filter
• SOQL query: SELECT Description FROM Account

• Description field is not filterable because it is a long text field

• Long text fields cannot be filtered in SOQL queries
Answered by AI
Add your answer

Q1. Write a LWC to display contacts associated to an account.
Ans. 
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
Answered by AI
Add your answer
Q2. Write a trigger to update field on child record from parent record.
Ans. 
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
Answered by AI
Add your answer

Q1. Write a trigger to update a field on child record a default value if the child record is the only child of parent
Ans. 
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
Answered by AI
Add your answer

Q1. Salary Discussion
Add your answer

Q1. Lookup and masterdetail
Add your answer
Q2. Owd and profile level permission
Add your answer
Q3. Write a trigger
Ans. 
A trigger is a piece of code that is executed before or after a record is inserted, updated, or deleted in Salesforce.
• Triggers are written in Apex and are used to perform custom actions on records.

• Triggers can be executed before or after a record is inserted, updated, or deleted.

• Triggers can be used to enforce validation rules, update related records, or perform other custom logic.
Answered by AI
Add your answer
Q4. LWC lifecycle hooks
Add your answer
Q5. LWC decorators and uses
Ans. 
LWC decorators are used to add metadata to class fields or methods. '@api' is used to expose a public property or method.
• LWC decorators are used to enhance the functionality of Lightning web components.

• '@api' decorator is used to expose a public property or method that can be accessed by parent components.

• Other decorators like '@track', '@wire', '@api get', '@api set' are also commonly used in LWC development.
Answered by AI
Add your answer