CGI Group Salesforce Developer Interview Questions and Answers

It was easy and basic

Coding questions are bit complicated

Q1. Salesforce platform questions
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Q2. Basic hr questions and project based question
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Basic Apex coding questions

Q1. Technical Scenerio in LWC
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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
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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.
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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
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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
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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.
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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.
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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
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Q1. Apex trigger security model etc
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Q1. Managerial round
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Q1. Salary negotiation
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Q1. Profile, role differencess
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Q2. How data is sent by callout
Ans. 
Data is sent by callout using HTTP request methods like GET, POST, PUT, DELETE.
• Data can be sent in the request body or as query parameters

• Headers can be used to provide additional information

• Response codes indicate the status of the request

• Examples: Sending data to an external API, retrieving data from a web service
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Q1. Types of Sharing Rules
Ans. 
Sharing rules control access to records that are owned by other users or in public groups.
• Criteria-based sharing rules

• Owner-based sharing rules

• Manual sharing

• Apex managed sharing
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Q2. Trigger Scenario-based Questions
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Q3. Types of LWC Decorators
Ans. 
LWC Decorators are used to enhance the functionality of Lightning Web Components.
• Wire Decorator - used to get data from Apex controllers

• Track Decorator - used to track changes in a property

• Api Decorator - used to expose a property or method to other components

• AuraEnabled Decorator - used to call an Apex method from a Lightning component

• LightningMessageService Decorator - used to subscribe to and publish events
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Q1. Soql , Apex Trigger , Integration , About last project
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Q1. Previous experience, governor limits, apex , soql and sosl
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Q1. Salary Negotiation
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Q1. Count all number of contacts and display on account
Ans. 
Use SOQL query to count number of contacts related to an account and display on account record
• Use a SOQL query to count the number of contacts related to the account

• Create a formula field on the account object to display the count of contacts

• Use a trigger to update the count of contacts on the account whenever a contact is added or removed
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Q1. Asynchronous apex scenarios
Ans. 
Asynchronous apex scenarios involve executing code in the background to improve performance and user experience.
• Asynchronous apex can be used for long-running processes, such as batch jobs or callouts to external systems.

• It helps in avoiding governor limits by processing tasks in the background.

• Examples include sending email notifications, updating records in bulk, and integrating with external APIs.
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