Salesforce Interview Questions, Process, and Tips

Q1. HLD - Design a live streaming platform
Ans. 
Design a live streaming platform for seamless video streaming experience.
• Implement a robust video encoding and transcoding system to support various devices and internet speeds.

• Utilize a content delivery network (CDN) to reduce latency and ensure high-quality streaming.

• Incorporate adaptive bitrate streaming to adjust video quality based on user's internet connection.

• Include features like live chat, viewer analytics, an...read more
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It was on hackerrank(OA). There were two string and array based medium question.(Part of Blind 75 list)

Q1. Questions around Triggers, asynchronous apex,soql query, apex basics
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Q2. A scenario for grand parent child trigger
Ans. 
A grand parent child trigger scenario involves triggering an action in a child record based on changes in a grandparent record.
• Create a trigger on the grandparent object to monitor changes

• Use a trigger handler class to handle the logic for updating child records

• Consider using trigger context variables to pass data between the grandparent and child triggers
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Q3. Write an asnchronous apex to return opportunities groupby AccountId
Ans. 
Asynchronous Apex code to group opportunities by AccountId
• Create a Queueable Apex class to handle the asynchronous processing

• Query the opportunities and group them by AccountId using a Map

• Implement the execute method to process the opportunities and return the grouped data
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Q1. Salary expectation
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Q2. What is previous working
Ans. 
I have experience working as a Sales Support Executive for the past 3 years.
• Managed customer inquiries and provided product information

• Assisted sales team in preparing proposals and presentations

• Handled order processing and logistics coordination

• Maintained CRM database and generated sales reports
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Q3. Family bag round
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Q4. Are willing to do travel
Ans. 
Yes, I am willing to travel for the role.
• I am open to traveling for work-related purposes.

• I understand that travel may be required for client meetings or training sessions.

• I am flexible and adaptable to different travel schedules and destinations.
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Q1. 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 de...read more
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Q2. 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 asyn...read more
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Q3. 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.
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Q4. 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 compli...read more
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Two medium level question in 75 minutes

Q1. Return k most frequent string from an array of strings
Ans. 
Return k most frequent strings from an array of strings
• Use a hashmap to store the frequency of each string in the array

• Sort the hashmap by frequency in descending order

• Return the first k keys from the sorted hashmap
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