Cognizant Salesforce Developer Interview Questions and Answers

2 Coding Questions + 1 Web Dev Question (HTML, CSS, JavaScript)

Q1. Introduction your self
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Q2. Sort a string for both lowe and uper case characters
Ans. 
Sort a string with both lower and upper case characters.
• Convert the string to an array of characters.

• Sort the array using a custom comparator function that considers case.

• Join the sorted array back into a string.
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Q3. What is LWC, Database, SOQL, etc Basics fundamental Questions
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Q1. Learn in depth advanced concepts
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Q1. What is Salesforce?crm
Ans. 
Salesforce is a cloud-based customer relationship management (CRM) platform that helps businesses manage their sales, customer service, marketing, and more.
• Cloud-based CRM platform

• Helps businesses manage sales, customer service, marketing, etc.

• Provides tools for automation, analytics, and collaboration

• Offers customizable solutions for different industries

• Examples: Sales Cloud, Service Cloud, Marketing Cloud
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Q2. What are profiles and users in Salesforce?
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Profiles and users in Salesforce are used to control access to data and functionality within the platform.
• Profiles define the permissions and access settings for a group of users.

• Users are individuals who have access to the Salesforce platform.

• Profiles can be assigned to users to determine what they can view and edit.

• Users can have different roles and permissions based on their profile settings.
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Q3. What is trigger ?
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A trigger is a piece of code that automatically executes when a specified event occurs in a database.
• Triggers are used to enforce business rules, validate data, and maintain data integrity.

• They can be written in Apex programming language in Salesforce.

• Triggers can be executed before or after an event like insert, update, delete, etc.

• Example: A trigger can be used to update a related record when a new record is inserted...read more
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Q4. What is apex in Salesforce?
Ans. 
Apex is a strongly typed, object-oriented programming language used in Salesforce for creating custom business logic.
• Apex is similar to Java and C# in syntax and structure.

• It allows developers to add custom code to Salesforce applications.

• Developers can use Apex to create triggers, classes, and web services.

• Example: Writing a trigger in Apex to automatically update a field on a record when certain conditions are met.
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Q5. What is LWC in Salesforce.
Ans. 
LWC stands for Lightning Web Components, a modern UI framework for building web components on the Salesforce platform.
• LWC is a programming model for building Lightning components using modern web standards like JavaScript and HTML.

• It provides a lightweight and efficient way to create reusable components that can be easily integrated into Salesforce applications.

• LWC allows developers to build components that are secure,...read more
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Q1. What is apex sharing
Ans. 
Apex sharing controls access to records in Salesforce based on the organization-wide defaults and sharing rules.
• Apex sharing allows developers to programmatically share records with users or groups in Salesforce.

• It can be used to extend the sharing settings defined in the organization-wide defaults and sharing rules.

• Developers can use Apex sharing to grant access to specific records based on custom logic or criteria.

• Ex...read more
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Q2. What is events in aura
Ans. 
Events in Aura are used to communicate between components in the Salesforce Lightning framework.
• Events are used to pass data or trigger actions between components.

• There are two types of events in Aura: component events and application events.

• Component events are used to communicate between components in the same hierarchy.

• Application events are used to communicate between components across the entire application.

• Events...read more
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Q3. Explain lifecycle hooks in lwc
Ans. 
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
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Q4. Diff between wire and imperative
Ans. 
Wire is a reactive data binding approach in LWC, while imperative is an imperative data fetching approach.
• Wire is used to declaratively bind data to a component, automatically handling updates.

• Imperative is used to fetch data imperatively, giving more control over when and how data is fetched.

• Wire is recommended for most scenarios due to its simplicity and efficiency.

• Imperative is useful for cases where more control is...read more
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Q5. Diff between aura and lwc
Ans. 
Aura is a component-based framework for building web apps on Salesforce platform, while LWC is a modern framework to build web components.
• Aura is based on JavaScript and has a larger codebase compared to LWC

• LWC uses modern web standards like ES6, Shadow DOM, and Custom Elements

• Aura components have a .cmp file extension, while LWC components have a .html file extension

• LWC provides better performance and is easier to deb...read more
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Q6. Explain batch and batch size
Ans. 
Batch is a process that divides a large job into smaller chunks for easier processing. Batch size is the number of records processed in each chunk.
• Batch is used to process large volumes of data in Salesforce.

• Batch size determines the number of records processed in each batch.

• Batch jobs can be scheduled to run at specific times or triggered manually.

• Batch jobs are useful for tasks like data cleansing, data migration, an...read more
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Q7. With and without sharing
Ans. 
In Salesforce, 'with sharing' enforces sharing rules, while 'without sharing' ignores them, affecting data visibility.
• With Sharing: Enforces organization-wide defaults and sharing rules.

• Without Sharing: Bypasses sharing rules, allowing access to all records.

• Example: A user with 'with sharing' can only see records they have access to, while 'without sharing' allows access to all records.

• Use 'with sharing' for Apex class...read more
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Q8. Explain sharing rules
Ans. 
Sharing rules control the level of access users have to records in Salesforce.
• Sharing rules are used to extend sharing access to users in public groups or roles.

• They can be based on criteria or ownership of records.

• Sharing rules are used when organization-wide defaults do not provide the desired level of access.

• They can be defined for standard and custom objects.

• Examples include giving read access to a specific group o...read more
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Q9. Give count of contact records of account trigger
Ans. 
Use SOQL query to count contact records related to account trigger
• Use a SOQL query to retrieve the count of contact records related to the account trigger

• Filter the contacts based on the account ID in the trigger context

• Aggregate the count of contact records using COUNT() function in SOQL
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Q10. Trigger and test class best practices
Ans. 
Best practices for triggers and test classes
• Keep triggers focused on a single concern

• Use helper classes to keep trigger logic clean

• Write test classes to cover all trigger scenarios

• Use @isTest annotation for test classes

• Avoid hardcoding values in test classes
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Q1. Explain ur strength and weakness
Ans. 
My strength lies in my problem-solving skills and ability to learn quickly. My weakness is that I can be overly critical of my own work.
• Strength: Strong problem-solving skills - I enjoy tackling complex issues and finding creative solutions.

• Strength: Quick learner - I pick up new technologies and concepts easily, allowing me to adapt to new challenges.

• Weakness: Overly critical - I tend to be hard on myself and strive f...read more
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Q2. If any escalated project u worked. How u handled it
Ans. 
I handled an escalated project by identifying root causes, creating a plan, and communicating effectively with stakeholders.
• Identified the root causes of the escalation

• Created a detailed plan to address the issues

• Communicated effectively with stakeholders to keep them informed of progress

• Regularly updated project status and milestones
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Q1. Type of flow, salesforce security,Asynchronous process,wrapper class
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