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Directi Data Engineer Intern Interview Questions and Answers

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Interview questions from similar companies

I applied via Naukri.com and was interviewed before Mar 2020. There were 4 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. Difference between Hashtable and hashmap?
  • Ans. 

    Hashtable is synchronized while hashmap is not.

    • Hashtable is thread-safe while hashmap is not.

    • Hashtable does not allow null keys or values while hashmap allows one null key and multiple null values.

    • Hashtable is slower than hashmap due to synchronization.

    • Hashtable is a legacy class while hashmap is a newer implementation.

  • Answered by AI
  • Q2. Difference between hashmap and concurrent hashmap?
  • Ans. 

    Hashmap is not thread-safe while Concurrent Hashmap is thread-safe.

    • Hashmap is not suitable for multi-threaded environments as it can lead to race conditions and data inconsistencies.

    • Concurrent Hashmap allows multiple threads to access and modify the map concurrently without any data inconsistencies.

    • Concurrent Hashmap uses a technique called lock striping to achieve thread-safety.

    • Concurrent Hashmap is slower than Hashma...

  • Answered by AI
  • Q3. Jdbc step
  • Q4. Spring ioc

Interview Preparation Tips

Interview preparation tips for other job seekers - Interview was average they asked questions from core java spring hibernate... And so on..

Skills evaluated in this interview

I applied via Campus Placement and was interviewed in May 2021. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. OOPs concept

Interview Preparation Tips

Interview preparation tips for other job seekers - Just be yourself.

I applied via Naukri.com and was interviewed before Apr 2021. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Basic python list tuples set dictionary related questions
  • Q2. Decorators generator and django rest framework

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on logical and basic python fundamental

I applied via Naukri.com and was interviewed in Dec 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Basics of DS and algorithms

Interview Preparation Tips

Interview preparation tips for other job seekers - be thorough in data structures and algorithms

I applied via Campus Placement and was interviewed in May 2021. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Dsa java oops dbms networking

Interview Preparation Tips

Interview preparation tips for other job seekers - Good interview experience.
You have to be very strong in DSA.

Interview Questionnaire 

1 Question

  • Q1. Basic javascript questions , clouser, promise

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepared well on basic of javascript

I applied via Naukri.com and was interviewed in Jan 2021. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. More questions on which topic
  • Q2. Focus on c#, MVC and SQL

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well technically and scenario based questions also prepared.

I applied via Recruitment Consultant and was interviewed in Oct 2020. There were 6 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Oops concepts with examples, SQL query to find second highest salary, diff between fail fast and fail safe, how did u implement security in your app, etc

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare basic Java concepts

I applied via Naukri.com and was interviewed before May 2018. There were 5 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. Telephonic technical
  • Q2. Core Java related exception handling ,design pattern ,oops solid design principle, rest API, different annotations of spring and jpa
  • Q3. Same questions on telephonic round but detailed elaborate and given simple problem statement we had to justify that why it's time n space complexity valid. Rest API questions hibernate orm use
  • Q4. Manager round just to check whether you have actually worked on project or not stress testing performance questions scenario questions

Interview Preparation Tips

General Tips: Quite easy just go with preparation
Skills: Core Java sevlet JSP hibernate spring rest API, Communication, Body Language, Problem Solving, Analytical Skills, Decision Making Skills
Duration: 1-4 weeks

I appeared for an interview in Sep 2019.

Interview Questionnaire 

1 Question

  • Q1. Pl sql related questions

Interview Preparation Tips

Interview preparation tips for other job seekers - y resume was referd through a guy. Later I got call from HR for interview schedule he asked me my expected ctc and Notice Period to which I clearly said 3 months. He scheduled my interview on weekends morning 8am I reached there by 8.30am The interview process got started late by 10am it was an walk in type interview 1 round was Technical I cleared that round and had a feedback session with HR he said we are processing u to next round which was Manager round there itself I told the HR my NP is 3months the Hr Told its not an issue.
Laterly after I had lunch by 2pm Hr came n told me that Manager is not available now so we will be conducting ur further round in weekdays.
Then there was no mail or call so I purposely mailed them still haven't got proper response from them, so at last I told my friend who referd me to ask for an update the same HR told him that they want Immediate joiner so we can't process him to further round. Wasted my whole day over there

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