Ernst & Young Salesforce Developer Interview Questions and Answers

Q1. Diff. between SOQL and SOSL
Ans. 
SOQL is used to query records from Salesforce objects, while SOSL is used to search for records across multiple objects.
• SOQL stands for Salesforce Object Query Language

• SOQL is used to query records from a single Salesforce object

• SOSL stands for Salesforce Object Search Language

• SOSL is used to search for records across multiple Salesforce objects

• SOQL queries are more structured and specific, while SOSL searches are more
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Q2. Queueable Apex and Future Apex , Use, syntax and differences
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Q3. Screen flow, Why we use Subflow?
Ans. 
Subflows are used in screen flows to break down complex processes into smaller, reusable components.
• Subflows help in organizing and modularizing the flow logic.

• They allow for reusability of common flow elements across multiple screen flows.

• Subflows can be called from multiple places within a screen flow, reducing redundancy.

• They make it easier to maintain and update the flow logic.

• Subflows can improve the overall perfo...read more
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Q4. What is mixed dml error?
Ans. 
Mixed DML error occurs when DML operations on setup and non-setup objects are mixed in a single transaction.
• Mixed DML error occurs when DML operations are performed on both setup and non-setup objects in a single transaction.

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

• Non-setup objects include custom objects created by the user.

• To avoid mixed DML error, separate the DML operations on setup and
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Q5. Trigger to prevent user from deleting Account if any opportunity record is associated with it
Ans. 
Use a trigger to prevent deletion of Account if any Opportunity record is associated with it
• Create a before delete trigger on Account object

• Query for related Opportunity records using SOQL

• If any Opportunity records are found, throw an error message to prevent deletion
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Q6. What is ValidateInput
Ans. 
ValidateInput is a method used to check and validate user input in a software application.
• ValidateInput ensures that the data entered by the user meets certain criteria or constraints.

• It helps prevent errors and security vulnerabilities by verifying the input before processing it.

• Examples include checking for valid email addresses, ensuring numeric values are within a specified range, and validating required fields.
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1 hr of multiple choices questions all technical questions salesforce admin and development

Q1. Scenario based questions
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Q1. Scenario based questions on profile
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Q2. 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
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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.
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Q2. Managerial round
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Medium to hard difficultly

Q1. Basic understanding of platform
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Q1. Advance level knowledge
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Q1. Salary discussion
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Q1. Apex Trigger to count no of Contacts in a particular account
Ans. 
Use an Apex Trigger to count the number of Contacts in a specific Account.
• Create an Apex Trigger on the Contact object.

• Query for Contacts related to the specific Account.

• Use a SOQL query to count the number of Contacts.

• Update a custom field on the Account with the count.
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Q2. Different Values of Apex Context variables in different scenarios
Ans. 
Apex context variables hold different values based on the scenario in Salesforce development.
• Trigger.new and Trigger.old contain new and old versions of records in trigger context

• System.isBatch() returns true in batch context

• System.isFuture() returns true in future method context

• System.isScheduled() returns true in scheduled job context
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Q1. Roll up summary trigger to populate number of open opportunities on account
Ans. 
Use a roll up summary trigger to populate the number of open opportunities on an account
• Create a trigger on Opportunity object to update the count on Account object

• Query for open opportunities related to the account

• Update the count field on the Account object with the number of open opportunities
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Q1. Screening round. MCQ's based on automation, security,lwc,lac, integration,apex Need to have good knowledge,not straight forward questions.
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Q1. 1.relationship types 2.what is junction object 3.scenario based questions on security. 4.mixed dml error 5.scenario based questions on automation process, flows 6.what are bound and inbound expression in l...read more
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Q1. Questions on your working experience. Why Deloitte Complex situations you have faced in ur project Why are u looking for change Given a business problem and asked how would you approach or solve it
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