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Dreamfolks Software Engineer Interview Questions and Answers

Updated 2 Apr 2020

Dreamfolks Software Engineer Interview Experiences

1 interview found

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

Interview Questionnaire 

1 Question

  • Q1. Hello everyone, i would just like to tell everyone that the level of questions basically depends on the individual's experience. As I was having 2.5 years of experience at the time of interview so I was as...

Interview Preparation Tips

Interview preparation tips for other job seekers - Just go with fresh mind and grab a job.

Interview questions from similar companies

I applied via Recruitment Consulltant and was interviewed in Jun 2022. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Zigzag traversal of tree
  • Ans. 

    Zigzag traversal of a tree is a method to visit the nodes in a tree in a zigzag pattern.

    • Use a queue to perform a level order traversal of the tree.

    • For each level, alternate the direction of traversal (left to right, then right to left).

    • Store the values of the nodes in each level in an array of strings.

  • Answered by AI
  • Q2. 3 Technical rounds Core Java and Springboot ques. RabbitMQ, annotations, multithreading, interface, concurrent hashmap, response body, Rest Api

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare Data Structures, Springboot and Java

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in May 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

Math Reasoning, Probability, Graph and pie charts, Indices, Trignometry, Geometry

Round 3 - Group Discussion 

Verbal communication and english speaking, grammer,

Interview Preparation Tips

Interview preparation tips for other job seekers - Work hard and have the confidence on self. Be good listener.

I applied via Recruitment Consultant and was interviewed in Aug 2021. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Next greater element.
  • Ans. 

    Next greater element is a problem where we find the closest greater element for each element in an array.

    • Iterate through the array

    • For each element, compare it with the elements on its right

    • Find the first element greater than the current element

    • Store the result in a new array or data structure

  • Answered by AI
  • Q2. Find all prime number up to given N.
  • Ans. 

    Program to find all prime numbers up to given N.

    • Start with 2 and iterate up to N

    • For each number, check if it is divisible by any number from 2 to its square root

    • If not divisible, add it to the list of primes

  • Answered by AI
  • Q3. You have a file of size approx 10GB and that file has many urls not necessary unique. how will you fetch unique url from there.
  • Ans. 

    Fetching unique URLs from a 10GB file with non-unique URLs.

    • Read the file in chunks to avoid memory issues.

    • Use a hash set to store unique URLs.

    • Iterate through each URL in the file and add it to the hash set if it doesn't already exist.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident and try to solve even if you don't have any idea about the question.

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What if auth token expires during a call. How do we retry?
  • Ans. 

    Retry the call with a new auth token

    • Check if the auth token has expired during the call

    • Generate a new auth token

    • Retry the call with the new auth token

  • Answered by AI
  • Q2. We use authenticator for it. It is provided by retrofit

Skills evaluated in this interview

Interview experience
1
Bad
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Not Selected

I applied via Approached by Company and was interviewed in Jun 2023. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. Basics of Angular and Kendo
  • Q2. Versions used in technologies
  • Ans. 

    Different technologies have different versions that are used for development.

    • Each technology has its own versioning system (e.g. Semantic Versioning for JavaScript libraries)

    • New versions often include bug fixes, new features, and improvements

    • It's important to stay updated with the latest versions to ensure compatibility and security

  • Answered by AI
Round 3 - Coding Test 

Create an business application with angular 14 and kendo

Interview Preparation Tips

Interview preparation tips for other job seekers - Only few basic questions are asked in interview, that last for only 15 minutes. Coding task was given to create big website application and 1 week time given to complete it. The application requirements are not elaborate, just purpose of application alone given. I have developed a complete application to serve all requirement given as task within stipulated time. This is big requirement and this cannot be completed in 1 week, unless we work whole 24/7. But the recruiter rejected me by stating very silly reasons like styles, file structure not proper. Also he was expected few things like lazy loading, reactive forms even for basic login form which was not mentioned in the requirement. How come we know that he was having these expectation in his mind , without listing in the requirement. Almost 1 week of time waste for me. If I can able to create this complete application , then I can also do these task that he was expecting if he mentioned in requirement. Please don't waste time by developing application if any task given. They will reject by stating very silly reasons. How come people like him are working in reputed organization.

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. How to refresh access token if an api fails due to it
  • Ans. 

    Refresh the access token by making a request to the authentication server

    • Check the response code of the API call to determine if it's due to an expired access token

    • If the response code indicates token expiration, make a request to the authentication server to get a new access token

    • Update the access token in the application's authentication header and retry the failed API call

  • Answered by AI

Skills evaluated in this interview

I applied via Recruitment Consulltant and was interviewed in Jun 2022. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Zigzag traversal of tree
  • Ans. 

    Zigzag traversal of a tree is a method to visit the nodes in a tree in a zigzag pattern.

    • Use a queue to perform a level order traversal of the tree.

    • For each level, alternate the direction of traversal (left to right, then right to left).

    • Store the values of the nodes in each level in an array of strings.

  • Answered by AI
  • Q2. 3 Technical rounds Core Java and Springboot ques. RabbitMQ, annotations, multithreading, interface, concurrent hashmap, response body, Rest Api

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare Data Structures, Springboot and Java

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in May 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all tips
Round 2 - Aptitude Test 

Math Reasoning, Probability, Graph and pie charts, Indices, Trignometry, Geometry

Round 3 - Group Discussion 

Verbal communication and english speaking, grammer,

Interview Preparation Tips

Interview preparation tips for other job seekers - Work hard and have the confidence on self. Be good listener.

I applied via Recruitment Consultant and was interviewed in Aug 2021. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Next greater element.
  • Ans. 

    Next greater element is a problem where we find the closest greater element for each element in an array.

    • Iterate through the array

    • For each element, compare it with the elements on its right

    • Find the first element greater than the current element

    • Store the result in a new array or data structure

  • Answered by AI
  • Q2. Find all prime number up to given N.
  • Ans. 

    Program to find all prime numbers up to given N.

    • Start with 2 and iterate up to N

    • For each number, check if it is divisible by any number from 2 to its square root

    • If not divisible, add it to the list of primes

  • Answered by AI
  • Q3. You have a file of size approx 10GB and that file has many urls not necessary unique. how will you fetch unique url from there.
  • Ans. 

    Fetching unique URLs from a 10GB file with non-unique URLs.

    • Read the file in chunks to avoid memory issues.

    • Use a hash set to store unique URLs.

    • Iterate through each URL in the file and add it to the hash set if it doesn't already exist.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident and try to solve even if you don't have any idea about the question.

Skills evaluated in this interview

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