Interview Questions and Answers
Freshers / Beginner level questions & answers
Ques 1. What is Salesforce?
Salesforce is a cloud-based customer relationship management (CRM) platform that helps organizations manage their sales, service, marketing, and more.
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Ques 2. What is a Salesforce sandbox, and why is it used?
A Salesforce sandbox is a copy of a Salesforce organization used for testing and development purposes. It allows developers to create, test, and deploy changes in a controlled environment before applying them to the production org.
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Ques 3. Explain the purpose of the Salesforce AppExchange.
The Salesforce AppExchange is an online marketplace that provides a variety of third-party applications, components, and consulting services to extend the functionality of Salesforce.
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Ques 4. Explain the purpose of the Schema Builder in Salesforce.
Schema Builder is a visual tool in Salesforce that allows users to create and modify objects, fields, and relationships using a point-and-click interface, without writing code.
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Ques 5. What is the difference between a public group and a queue in Salesforce?
A public group is a collection of individual user records, roles, or other groups, used in sharing settings and permissions, while a queue is used to manage records that need to be worked on by a group of users.
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Ques 6. What is the purpose of the Salesforce Data Loader?
Salesforce Data Loader is a client application for the bulk import or export of data. It allows users to insert, update, delete, or export data in Salesforce.
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Ques 7. What is a Salesforce Lightning App?
A Salesforce Lightning App is a collection of custom tabs and Lightning components, designed to provide a cohesive user experience. It can be accessed via the Salesforce Lightning Experience or a custom Lightning App Builder page.
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Ques 8. Explain the difference between a standard object and a custom object in Salesforce.
A standard object is provided by Salesforce, such as Account or Contact, while a custom object is created by users to store information specific to their organization's needs.
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Ques 9. What is the purpose of the Salesforce Schema Builder?
The Salesforce Schema Builder is a visual tool that allows users to view and modify the schema of their data model. It provides a graphical representation of objects, fields, and relationships.
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Ques 10. What is the purpose of the Salesforce Chatter feature?
Salesforce Chatter is a collaboration tool that allows users to share information, files, and updates within the Salesforce platform. It facilitates communication and collaboration among users.
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Ques 11. Explain the concept of an external ID in Salesforce.
An external ID in Salesforce is a custom field that is used to match records in Salesforce with records in an external system. It allows for the integration and synchronization of data between Salesforce and external systems.
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Ques 12. What is the purpose of the '@isTest' annotation in Apex?
The '@isTest' annotation in Apex is used to define a class or method as a test class or test method. It ensures that the enclosed code is treated as test code and doesn't count against the organization's code size limits.
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Ques 13. Explain the concept of a lightning component bundle in Salesforce.
A lightning component bundle in Salesforce is a collection of files that define a Lightning component. It includes a component file, controller file, helper file, style file, and documentation file. Bundles encapsulate the functionality and appearance of a Lightning component.
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Ques 14. Explain the purpose of the 'force:hasRecordId' interface in Lightning components.
The 'force:hasRecordId' interface in Lightning components is used to enable the component to receive the record ID of the current record. It allows components to dynamically interact with the record being viewed or edited.
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Ques 15. What is the purpose of the 'System.debug()' statement in Apex?
The 'System.debug()' statement in Apex is used for logging and debugging purposes. It allows developers to output variable values, expressions, and messages to the debug log, helping in the analysis of code execution.
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Ques 16. Explain the purpose of the 'Test.isRunningTest()' method in Apex testing.
The 'Test.isRunningTest()' method in Apex testing is used to check whether the current code is running in a test context. It allows developers to conditionally execute code based on whether it is being run in a test environment.
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Ques 17. Explain the concept of a permission set in Salesforce.
A permission set in Salesforce is a collection of settings and permissions that can be assigned to users in addition to their profiles. It allows administrators to grant additional permissions without changing the user's profile.
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Intermediate / 1 to 5 years experienced level questions & answers
Ques 18. Explain the difference between a role and a profile in Salesforce.
In Salesforce, a profile is a collection of settings and permissions that determine what a user can access, while a role defines the hierarchical level of data access within an organization.
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Ques 19. What is an Apex trigger, and when would you use it?
An Apex trigger is a piece of code that runs before or after records are inserted, updated, or deleted in Salesforce. It's used to perform custom actions and logic on record changes.
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Ques 20. Explain the difference between a workflow rule and a process builder in Salesforce.
Both workflow rules and process builders automate standard internal procedures, but process builder provides a more powerful and flexible way to define processes with a visual representation.
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Ques 21. What is the difference between a formula field and a roll-up summary field?
A formula field is a read-only field that derives its value from a formula expression, while a roll-up summary field is used to aggregate values from related records, such as calculating the sum or count of child records.
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Ques 22. How does Salesforce handle security and access control?
Salesforce uses a role hierarchy, profiles, and permission sets to control access to data and features. The role hierarchy defines data access levels, profiles determine object and field-level permissions, and permission sets grant additional access.
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Ques 23. What is the difference between a SOQL and a SOSL query in Salesforce?
SOQL (Salesforce Object Query Language) is used to query records from a single object, while SOSL (Salesforce Object Search Language) is used to search for records across multiple objects.
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Ques 24. Explain the use of the @future annotation in Apex.
The @future annotation in Apex is used to run a method asynchronously in the background, typically for long-running operations that would otherwise exceed governor limits.
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Ques 25. What is the difference between a custom controller and a controller extension in Visualforce?
A custom controller is a standalone Apex class that provides controller logic for a Visualforce page, while a controller extension is used to extend the functionality of a standard or custom controller.
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Ques 26. How can you schedule a job in Salesforce?
You can schedule a job in Salesforce using the Apex Scheduler. This involves using the System.schedule method to specify a time and frequency for executing a piece of Apex code.
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Ques 27. What is the difference between a full sandbox and a developer sandbox?
A full sandbox is a replica of your production org, including all data, configurations, and customizations, while a developer sandbox is a copy of your production org with a smaller subset of data and configurations.
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Ques 28. Explain the purpose of the Salesforce Lightning Component Framework.
The Salesforce Lightning Component Framework is a UI framework for developing dynamic web apps for mobile and desktop devices. It allows developers to build reusable components that can be used in the Lightning Experience.
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Ques 29. What is the difference between a trigger and a workflow rule?
A trigger is a piece of Apex code that runs in response to a database event, while a workflow rule is a declarative tool used to automate standard internal procedures to save time across your org.
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Ques 30. Explain the use of the @AuraEnabled annotation in Salesforce.
@AuraEnabled is used to expose Apex methods to Lightning components. It allows client-side JavaScript in Lightning components to call server-side Apex controller methods.
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Ques 31. How does Salesforce support multi-language and multi-currency functionality?
Salesforce provides translation workbench for multi-language support and supports multi-currency functionality by allowing organizations to define multiple currencies and set conversion rates.
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Ques 32. Explain the difference between a trigger and a process builder in Salesforce.
A trigger is a piece of Apex code that executes before or after a record is inserted, updated, or deleted, while a process builder is a point-and-click tool used to automate business processes.
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Ques 33. Explain the concept of sharing rules in Salesforce.
Sharing rules in Salesforce are used to extend access to records that meet certain criteria. They can be used to grant read or read/write access to specific users or groups of users.
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Ques 34. What is the difference between a trigger and a validation rule in Salesforce?
A trigger is an Apex code that performs complex calculations and manipulations on data, while a validation rule is a declarative way to enforce data quality by restricting certain values or combinations of values.
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Ques 35. Explain the concept of data skew in Salesforce and how to address it.
Data skew in Salesforce occurs when a small number of records are associated with a large number of child records. It can lead to performance issues. Addressing data skew involves using best practices, such as proper indexing and data archiving.
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Ques 36. Explain the difference between a trigger and a batch class in Salesforce.
A trigger is an Apex code that runs in response to a database event, while a batch class is used for processing large sets of records asynchronously. Triggers are designed for real-time events, while batch classes are used for bulk processing.
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Ques 37. What is the purpose of the 'Schema.SObjectType' class in Apex?
The 'Schema.SObjectType' class in Apex is used to dynamically access metadata for an object, such as fields, child relationships, and other object properties. It allows developers to create generic code that works with various objects.
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Ques 38. Explain the difference between a before trigger and an after trigger in Salesforce.
A before trigger in Salesforce runs before the record is saved to the database, allowing developers to modify the record before it is committed. An after trigger runs after the record is saved, enabling actions based on the final state of the record.
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Ques 39. Explain the use of the 'WITH SECURITY_ENFORCED' clause in SOQL queries.
The 'WITH SECURITY_ENFORCED' clause in SOQL queries is used to enforce field- and object-level security in Apex code. It ensures that queries respect the current user's permissions and visibility.
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Ques 40. What is the purpose of the 'Test.startTest()' and 'Test.stopTest()' methods in Apex testing?
'Test.startTest()' and 'Test.stopTest()' methods in Apex testing are used to separate the execution context for the part of the code that precedes 'startTest()' and the part that follows 'stopTest()'. This is helpful for testing asynchronous code and resetting governor limits.
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Ques 41. What is the purpose of the 'System.runAs()' method in Apex testing?
The 'System.runAs()' method in Apex testing is used to run a block of code with the specified user context. It is often used to test code that depends on user permissions and profiles.
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Ques 42. Explain the concept of a junction object in Salesforce.
A junction object in Salesforce is a custom object with two master-detail relationships. It is used to model many-to-many relationships between two objects. Junction objects are commonly used in complex data models.
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Ques 43. Explain the use of the 'Database.upsert()' method in Apex.
The 'Database.upsert()' method in Apex is used to insert or update records based on a specified external ID. It allows developers to perform upsert operations in a single call, reducing the number of DML statements.
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Ques 44. What is the purpose of the 'force:recordData' Lightning component in Salesforce?
The 'force:recordData' Lightning component in Salesforce is used to create, read, and update records without writing Apex code. It provides a declarative way to interact with record data in Lightning components.
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Ques 45. Explain the difference between a trigger and a scheduled job in Salesforce.
A trigger in Salesforce is executed in response to a database event, while a scheduled job is a piece of Apex code that is scheduled to run at a specific time or on a recurring basis using the 'Schedulable' interface.
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Ques 46. What is the purpose of the 'Queueable' interface in Apex?
The 'Queueable' interface in Apex is used to implement asynchronous processing. It allows developers to offload long-running tasks to a separate job queue, avoiding synchronous processing delays.
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Ques 47. Explain the difference between a static resource and a public folder in Salesforce.
A static resource in Salesforce is a collection of files that can be referenced in Visualforce pages, Lightning components, and Apex code. A public folder is used to store and share reports and dashboards with groups of users.
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Ques 48. What is the purpose of the 'System.runAs()' method in Apex testing?
The 'System.runAs()' method in Apex testing is used to run a block of code with the specified user context. It is often used to test code that depends on user permissions and profiles.
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Ques 49. What is the purpose of the 'System.runAs()' method in Apex testing?
The 'System.runAs()' method in Apex testing is used to run a block of code with the specified user context. It is often used to test code that depends on user permissions and profiles.
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Experienced / Expert level questions & answers
Ques 50. What is governor limits in Salesforce?
Governor limits in Salesforce are runtime limits enforced by the platform to ensure efficient resource utilization. These limits include daily limits, transaction limits, and concurrent execution limits.
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Ques 51. What is a Salesforce trigger context variable?
Trigger context variables, such as Trigger.new and Trigger.old, provide information about the records being processed by a trigger. They allow developers to access and manipulate data within the trigger.
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Ques 52. Explain the concept of batch processing in Salesforce.
Batch processing in Salesforce involves processing large sets of data asynchronously. It allows developers to break down complex operations into smaller chunks to avoid hitting governor limits.
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Ques 53. Explain the use of the @future(callout=true) annotation in Apex.
The @future(callout=true) annotation in Apex is used to make asynchronous callouts to external web services. It allows the Apex method to make a callout and return without waiting for the response.
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Ques 54. How can you prevent governor limit issues in Salesforce?
To prevent governor limit issues in Salesforce, developers should write efficient code, use bulk processing techniques, and implement proper error handling. Additionally, consider using asynchronous processing for long-running operations.
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Ques 55. What is the purpose of the 'Database.Stateful' interface in Apex?
The 'Database.Stateful' interface in Apex is used to maintain the state of variables between different invocations of a batch Apex job. It allows variables to retain their values throughout the execution of the batch.
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Ques 56. What is the purpose of the 'LimitException' in Salesforce?
The 'LimitException' in Salesforce is thrown when an Apex code exceeds governor limits. It allows developers to catch and handle exceptions related to governor limits during execution.
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Ques 57. What is the purpose of the 'QueueableContext' interface in Apex?
The 'QueueableContext' interface in Apex is used to provide additional context information to a class that implements the 'Queueable' interface. It allows developers to access and manipulate data within the queueable job.
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