HUDL Senior Software Engineer Interview Questions and Answers

Q1. Reverse the linked list.
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Q1. Internel working of Hashmap
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Q1. Salary Discussion
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Q1. String Question based on hashmap
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Q2. Palindorme -Reverse a string
Ans. 
Reverse a string to check if it is a palindrome.
• Create a function that takes a string as input

• Reverse the string using built-in functions or manually

• Compare the reversed string with the original string to check if it is a palindrome
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Q1. Basic Personal Questions, salary expectations
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Q2. Agile, docker,kunernetes
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DSA round leetcode style question

Q1. Design + Coding round for rate limiter
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Q1. Design zepto delivery system .
Ans. 
Design a zepto delivery system for efficient and fast delivery of small packages.
• Utilize drones for quick and efficient delivery

• Implement a centralized hub for package sorting and distribution

• Use GPS tracking for real-time package monitoring

• Optimize routes for faster delivery times

• Ensure secure and reliable delivery process
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Q1. Solid principals
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Q2. Difference between pure and impure pipes
Ans. 
Pure pipes do not have any side effects and always return the same output for the same input, while impure pipes can have side effects and may not return the same output for the same input.
• Pure pipes are stateless and deterministic.

• Impure pipes can have side effects like modifying global variables or making network requests.

• Examples of pure pipes include filters in Angular, while examples of impure pipes include async
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Q1. Write Trigger Logic
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Writing trigger logic involves defining actions to be taken when a certain event occurs in a database.
• Identify the event that will trigger the logic

• Define the actions to be taken when the event occurs

• Consider any conditions or constraints that need to be met for the trigger to fire
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Q2. Write Batch Class

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A Batch Class is used in Salesforce to process records in batches.

• Batch classes are used to process large amounts of data in Salesforce.

• They are implemented by implementing the Database.Batchable interface.

• Batch classes have three main methods: start, execute, and finish.

• Example: public class MyBatchClass implements Database.Batchable { // implementation }

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