Salesforce Developer

20+ Salesforce Developer Interview Questions and Answers for Freshers

Updated 16 Nov 2024
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Q1. Scenario how to create 1 to 1 relationship

Ans.

To create a 1 to 1 relationship in Salesforce, use a lookup field on the child object pointing to the parent object.

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

  • Ensure that the lookup field has a unique constraint to enforce the 1 to 1 relationship.

  • Use validation rules or triggers to prevent multiple child records from being linked to the same parent record.

Q2. What is power electronics, what is the architecture of the ic2716

Ans.

Power electronics is the application of electronics to control and convert electrical power.

  • Power electronics involves the use of semiconductor devices such as diodes, transistors, and thyristors to control and convert electrical power.

  • The architecture of the ic2716 is a 16Kbit EPROM (erasable programmable read-only memory) with a 24-pin DIP (dual in-line package) configuration.

  • The ic2716 is commonly used in microcontroller and embedded systems for storing program code and da...read more

Q3. Tell me about trigger Governor limit Soql sosl Relationship in Salesforce

Ans.

Triggers are code that execute before or after specific events occur in Salesforce. Governor limits are limits on resources that a single transaction can consume. SOQL and SOSL are query languages used to search for data in Salesforce. Relationships define how objects are related to each other in Salesforce.

  • Triggers are used to automate processes in Salesforce

  • Governor limits prevent a single transaction from consuming too many resources

  • SOQL is used to search for data in a sin...read more

Q4. Tell me about Asynchronous Apex? Difference between Batch Apex and Queueable Apex

Ans.

Asynchronous Apex allows you to run processes in the background, without user interaction. Batch Apex and Queueable Apex are two types of Asynchronous Apex.

  • Asynchronous Apex allows you to process large amounts of data asynchronously, without impacting the user interface.

  • Batch Apex is used to process large data sets that can be divided into smaller batches for processing.

  • Queueable Apex allows you to submit jobs for asynchronous processing, similar to future methods but with mo...read more

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Q5. How to cal child to parent in Lightning aura

Ans.

To call child to parent in Lightning aura, use events and event handlers.

  • Create an event in the child component

  • Register the event in the parent component

  • Create an event handler in the parent component

  • Fire the event from the child component

  • Handle the event in the parent component

  • Pass data between the child and parent components using event attributes

Q6. What is difference between profile and permission sets

Ans.

Profiles define user's access to objects and fields while permission sets grant additional permissions to users.

  • Profiles are assigned to users and define their access to objects, fields, tabs, and other features.

  • Permission sets are used to grant additional permissions to users without changing their profiles.

  • Profiles are used to restrict access while permission sets are used to grant access.

  • Profiles are used to define the baseline access while permission sets are used to exte...read more

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Q7. Explain Future method? and why we need (Callout= true) along with that annotation?

Ans.

Future method is used to run code asynchronously. Callout=true is needed to make HTTP callouts from future methods.

  • Future methods are used to run code asynchronously in Salesforce.

  • They are annotated with @future annotation.

  • Callout=true is needed to make HTTP callouts from future methods.

  • Without Callout=true, making HTTP callouts from future methods is not allowed.

Q8. Difference between queable and feature apex

Ans.

Queueable is used for asynchronous processing while future apex is used for executing code in a separate thread.

  • Queueable is used for complex, long-running processes that can be split into multiple jobs.

  • Future apex is used for short, quick processes that need to be executed in a separate thread.

  • Queueable jobs can be chained together to run in a specific order.

  • Future apex methods are limited in terms of governor limits compared to Queueable jobs.

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Q9. What is the full form of BDA

Ans.

BDA stands for Big Data Analytics.

  • BDA refers to the process of examining large and complex data sets to uncover patterns, correlations, and insights.

  • It involves using various techniques and tools to analyze data and make informed business decisions.

  • Examples of BDA include analyzing customer behavior data to improve marketing strategies or analyzing financial data to identify potential risks.

Q10. in lwc, frameworks and best practices,pagination in lwc

Ans.

Pagination in LWC involves using frameworks and best practices to efficiently display large sets of data.

  • Use Lightning Data Service to fetch data efficiently

  • Implement server-side pagination to reduce load times

  • Consider using third-party libraries like Lightning Datatable with Infinite Scrolling

  • Optimize queries and data retrieval to improve performance

Q11. Can you explain about Platform Events?

Ans.

Platform Events are a feature in Salesforce that allow developers to deliver secure, scalable, and customizable event notifications.

  • Platform Events are based on the publish-subscribe model, where publishers send events and subscribers receive them.

  • They are used to communicate changes in Salesforce data or custom events within an organization.

  • Developers can define custom event objects and trigger events using Apex or declaratively through Process Builder or Flow.

  • Subscribers ca...read more

Q12. What is OWD in salesforce?

Ans.

OWD stands for Organization Wide Default. It is a security setting in Salesforce that defines the default level of access to records.

  • OWD can be set for different objects in Salesforce

  • It determines the default access level for records created in that object

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

  • For example, if OWD for Accounts is set to Private, only the record owner and users with higher access can view/edit the record

Q13. Patterns using c program

Ans.

C programs can use various patterns for solving problems. Some common patterns include iterative, recursive, and functional.

  • Iterative pattern involves using loops to repeat a set of instructions until a condition is met.

  • Recursive pattern involves breaking down a problem into smaller sub-problems and solving them recursively.

  • Functional pattern involves using functions to perform specific tasks and combining them to solve a larger problem.

  • Other patterns include object-oriented,...read more

Q14. Data Security in Salesforce and types in it.

Ans.

Data security in Salesforce involves various types of security measures to protect sensitive information.

  • Salesforce provides various security features such as user authentication, data encryption, and access controls.

  • Types of data security in Salesforce include object-level security, field-level security, and record-level security.

  • Salesforce also offers tools like Salesforce Shield for enhanced data security and compliance.

  • Regular security audits and monitoring help ensure da...read more

Q15. What is master detail relationship

Ans.

Master-detail relationship is a type of relationship in Salesforce where the master object controls certain behaviors of the detail object.

  • Master-detail relationship is a parent-child relationship between two objects.

  • The master object is the controlling object and the detail object is the dependent object.

  • Deleting the master record automatically deletes the associated detail records.

  • Security and sharing settings of the master record are inherited by the detail records.

  • Roll-up...read more

Q16. What is the apex in Salesforce

Ans.

Apex is a programming language used to develop customizations for Salesforce

  • Apex is similar to Java and is used to write custom business logic

  • It is used to create custom controllers, triggers, and classes

  • Apex can interact with Salesforce data and metadata

  • It is executed on the Salesforce servers

  • Example: Apex can be used to create a custom validation rule for a specific object

Q17. Write a code to reverse the string of your name.

Ans.

Code to reverse a string of your name

  • Create a function that takes a string as input

  • Use built-in functions like reverse() or loop through the string to reverse it

  • Return the reversed string

Q18. Write a trigger in developer console ?

Ans.

A trigger can be written in Developer Console using Apex language.

  • Open Developer Console and create a new Apex Trigger

  • Define the object and event for which the trigger will fire

  • Write the logic for the trigger in Apex code

  • Save the trigger and test it in the Salesforce org

Q19. Write a code to print pyramid pattern

Ans.

Code to print pyramid pattern in Python

  • Use nested loops to print spaces and stars in each row

  • Increment the number of stars in each row to form the pyramid shape

  • Example: for a pyramid with 5 rows, the code would look like this:

  • for i in range(5):

  • print(' '*(5-i-1) + '*'*(2*i+1))

Q20. Sorting an unsorted array

Ans.

Sorting an unsorted array of strings

  • Use built-in sorting functions like sort() or sorted()

  • Implement custom sorting algorithms like bubble sort or quicksort

  • Consider the time complexity of the sorting algorithm chosen

Q21. Write a piece of code for Rest API

Ans.

Code snippet for Rest API

  • Use a framework like Express.js for Node.js or Flask for Python to create the API

  • Define routes for different endpoints such as GET, POST, PUT, DELETE

  • Use middleware for authentication and validation

  • Return data in JSON format

Q22. What is Salesforce

Ans.

Salesforce is a cloud-based customer relationship management (CRM) platform that helps businesses manage their sales, marketing, and customer support activities.

  • Salesforce is a CRM platform that offers a range of tools and features to help businesses manage their customer relationships

  • It allows businesses to store customer data, track sales leads, and automate marketing campaigns

  • Salesforce also offers a range of third-party integrations and add-ons to extend its functionality...read more

Q23. How do you debug LWC

Ans.

Debugging LWC involves using browser developer tools, console logs, and Salesforce Lightning Inspector.

  • Use browser developer tools to inspect elements and check for errors.

  • Utilize console logs to track variables and identify issues in the code.

  • Use Salesforce Lightning Inspector to debug server-side Apex calls and network requests.

Q24. What is trigger

Ans.

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 a record is inserted, updated, or deleted.

Frequently asked in, ,

Q25. Define Trigger and async apex

Ans.

Trigger is a piece of code that executes before or after specific data manipulation events, while async apex is code that runs in the background asynchronously.

  • Triggers are used to perform custom actions before or after data manipulation events like insert, update, delete, etc.

  • Async apex is used to run processes in the background asynchronously, without blocking the user interface.

  • Triggers are written in Apex and are associated with specific objects in Salesforce.

  • Async apex i...read more

Q26. REST SOAP APIs differences

Ans.

REST and SOAP APIs are different in terms of architecture, communication, and data formats.

  • REST is based on HTTP protocol and uses standard methods like GET, POST, PUT, DELETE, while SOAP is a protocol-agnostic and uses XML for communication.

  • REST is lightweight and easier to use, while SOAP is more rigid and has more security features.

  • REST APIs are stateless, while SOAP APIs can maintain state between requests.

  • REST APIs are more popular for web services, while SOAP APIs are c...read more

Q27. define salesforce 360

Ans.

Salesforce 360 is a platform that provides a complete view of customers by integrating data from various sources.

  • Salesforce 360 integrates data from sales, service, marketing, and more to create a comprehensive customer profile.

  • It allows businesses to personalize customer interactions and improve overall customer experience.

  • With Salesforce 360, companies can gain insights into customer behavior and preferences to drive targeted marketing campaigns.

  • It helps organizations to st...read more

Q28. Pattern program in Java

Ans.

Pattern program in Java involves printing a specific pattern using loops.

  • Use nested loops to print the desired pattern

  • Identify the pattern and determine the logic to print it

  • Experiment with different loop structures to achieve the pattern

Q29. Define Batch Apex

Ans.

Batch Apex is a Salesforce feature that allows for processing large amounts of data in batches to prevent hitting governor limits.

  • Batch Apex is used to handle large data volumes by breaking the processing into smaller chunks called batches.

  • It is useful for operations like updating records, sending emails, or making callouts in Salesforce.

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

  • It helps in avoiding governor limits like the maximum numbe...read more

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