INCREFF Data Engineer Interview Questions and Answers

Python and SQL questions were asked

Q1. I was asked about the project
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Q1. ACID properties of DBMS
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Q1. HR question and family background
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Build a typeahead component

Q1. Build a form for personal details
Ans. 
Build a form for personal details
• Include fields for name, email, phone number, address, date of birth

• Use input fields, dropdowns, and date pickers for user input

• Add validation for required fields and correct formats

• Consider user experience with clear labels and easy navigation
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Q2. Add validations to different fields
Ans. 
Implement validations for different fields in software development.
• Identify the fields that require validation such as email, password, phone number, etc.

• Use regular expressions to validate input data format.

• Implement client-side and server-side validations to ensure data integrity.

• Display error messages for invalid input to guide users on correct data entry.
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Q1. Dsa question regarding linked list and hashmap
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Q1. DS Algo type questions, string manipulation etc was asked and explored with more detailed questions
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Q1. In depth android, kotlin discussions and high level mapping questions
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Q1. General managerial questions and working agreements type discussion
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Q1. Introduce Yourself
Ans. 
I am a data analyst with a background in statistics and experience in analyzing large datasets to drive business decisions.
• Graduated with a degree in Statistics

• Proficient in data analysis tools such as Python, R, and SQL

• Experience in creating visualizations to communicate insights

• Strong problem-solving skills
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Q2. Skills you have
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Easy to medium, can solve with leetcode medium

Q1. Number of islands count
Ans. 
Count the number of islands in a grid of '1's and '0's
• Iterate through the grid and for each '1' encountered, perform a depth-first search to mark all connected '1's as visited

• Increment the island count for each new island found

• Ensure to handle boundary cases and check for visited nodes
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Q2. First and last index of a particular element in an array
Ans. 
Find the first and last index of a specific element in an array of strings.
• Iterate through the array and keep track of the index of the first and last occurrence of the element.

• Return the first and last index once the iteration is complete.

• Example: Array ['apple', 'banana', 'apple', 'orange'], element 'apple' - First index: 0, Last index: 2.
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2hrs aptitude test was there

2 hrs coding test was there

GD was conducted and then i passed it

A general apti round

Data analysis assignment

Q1. Sql questions askes
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Q1. Product sense round
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Q1. Culture fit round
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