Enfec Technologies Interview Questions and Answers

Q1. Tell me about yourself
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Q2. SQL query related to Uber
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Q1. Question related to Tableau and one SQL question
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It was a MCQ test on CS Fundamentals. We have to answer 50 questions in 40 minutes. Accuracy is must. Company have its own cutoff and it's usually high. So try to gain maximum marks as possible. The results were announced in 1.5 hrs. The selected candidates will be appearing for the coding challenge.

There are 5 questions. 1 easy , 3 medium, 1 hard. You should solve atleast 4 questions to get shortlisted for the interview. Results are announced in 2-3 hours. Take a look at these questions. One of the questions from the coding challenge will be asked in the interview.

Q1. Email validation question from coding challenge
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Q2. Binary Search on rotated arrays
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Q3. About projects (reason behind using the mentioned database)
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Q4. Use of package.json file
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Q5. What are scripts in package.json file
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Q1. I have around 9 rounds interview in span of 2 months
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Q1. Everyday one round interview
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Q1. Same as above .it is too much
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Q1. Same as above .it is too much
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Q1. Same only .it is too much
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4 member team interview

Q1. One on one interview
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Q1. Reference . through referral I sent my resume
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Q1. Salary discussion
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Q1. It is too much
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Q1. Graph theory questions related
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Q2. Programming,data structure and algo
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Q1. Intro about your self
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Q2. Mostly focused on CSE fundamentals
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Q1. SQL question ( window functions) dense_rank
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Q2. SQL question(window function) aggregation, there were 5 tables and you had to do some joins
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Q3. Some question on spark optimisations
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Q1. Salary why not time being paid ?
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Q2. Without any evidence how blaming staff ??
Ans. 
Blaming staff without evidence is unprofessional and can damage morale and trust within the team.
• Avoid jumping to conclusions without concrete evidence

• Encourage open communication and transparency

• Focus on problem-solving rather than assigning blame

• Provide constructive feedback and support to help staff improve

• Lead by example and take responsibility for mistakes
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Q3. Company always carried out theft staff ?
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Q4. No one professional staff in office and overall company ??
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Q5. Why directors board unseen to thefts??
Ans. 
Directors may not always be aware of thefts due to lack of oversight, trust in employees, or focus on other priorities.
• Directors may not be directly involved in day-to-day operations where thefts occur

• There may be a lack of proper oversight or monitoring mechanisms in place

• Directors may trust their employees and not suspect them of theft

• Directors may be focused on other strategic priorities and not pay attention to pot
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Coding Test consists of 3 Problem Question (2 Logical questions and 1 SQL Query ) and Around 20 MCQS
Platform - CoderByte

30 Aptitude Question
3 Mail Writing Question

Q1. Explain 1st Problem Solved in Coding Test. Optimize it.
Ans. 
Solved a sorting problem by implementing quicksort algorithm.
• Implemented quicksort algorithm to efficiently sort the array.

• Used recursion to divide the array into smaller subarrays and sort them individually.

• Optimized the algorithm by choosing a pivot element strategically to minimize comparisons.
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Q2. Explain 2nd Problem Solved in Coding Test. I failed 1 test case in 1st round which was told to solve again.
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Q3. Explain 3rd Question based on SQL Query.
Ans. 
The 3rd question based on SQL query likely refers to a specific query or scenario related to SQL.
• Understand the context of the query being asked about

• Analyze the structure and purpose of the SQL query

• Explain the expected output or result of the query
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Q4. Write a code to Reverse Digits.
Ans. 
Code to reverse digits of a number
• Use modulo operator to extract the last digit of the number

• Multiply the result by 10 and add the next digit until all digits are reversed

• Handle negative numbers separately by converting to positive before reversing
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Q5. A problem question for solving a SQL Query.
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The Hiring team and the trial team is very supportive, and the trial assignment was challenging and enjoyable. At First round the assignment is for design the Ai chat to Human chat process, that was very challenging, and I think best lesson I get from the assignment. and 2nd assignment to design and case study of the helplama website and i give best from my side and the team was very supportive and the work environment also best.