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Duplex Technology Mern Stack Developer Interview Questions, Process, and Tips
Duplex Technology Mern Stack Developer Interview Experiences
1 interview found
Selected
I applied via Walk-in and was interviewed before Oct 2023. There were 2 interview rounds.
(6 Questions)
- Q1. About the Project
- Q2. Basic in JavaScript , Event Loop , Asynchronous Programming, closures , Mongodb Aggregation Pipile
- Q3. Diff b/w sql / nosql
- Ans.
SQL is a relational database management system, while NoSQL is a non-relational database management system.
SQL databases are table-based and have a predefined schema, while NoSQL databases are document-based, key-value pairs, graph databases, or wide-column stores.
SQL databases are good for complex queries and transactions, while NoSQL databases are better for hierarchical data storage.
Examples of SQL databases include...
- Q4. Asking about the Nest.js middleware
- Q5. Nest.js Pipiline , Gaurd
- Q6. Given me the coding Question to resolve the multiple promiss in using promiss.all()
(9 Questions)
- Q1. React js ( vertual Dom , Real Dom )
- Q2. Feature of React using advanced and disadvantage
- Ans.
React's advanced feature is virtual DOM for efficient rendering, but it can be complex for beginners.
Virtual DOM allows React to update only the necessary parts of the actual DOM, improving performance.
Advanced state management with tools like Redux or Context API.
Server-side rendering for better SEO and initial load performance.
Component-based architecture for reusability and maintainability.
Complex learning curve for...
- Q3. Hooks, React life cycle
- Q4. UseMemo , use of useMemo
- Q5. UseRef , forwordRef , both uses and example
- Q6. Coding question gives me create excel sheet to fill the data Drag and drop the Data
- Q7. Create multiselect dropdown with scrach , one select have to choose the other dropdown option
- Q8. Implement the file uploads system coding task multiselect file uplods
- Ans.
Implementing a multiselect file upload system for a MERN stack application.
Use a library like Multer for handling file uploads in Node.js
Create a form in React with multiple file input fields for selecting multiple files
Send the selected files to the server using a POST request
Handle the file uploads on the server side and save them to a designated folder
- Q9. Create product , perform curd opration , make the suggetion in this cart
- Ans.
Create a product cart with CRUD operations and suggestion feature.
Create a database schema for products
Implement CRUD operations for adding, updating, and deleting products
Implement a suggestion feature based on user preferences or past purchases
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
Selected
I applied via Company Website and was interviewed in May 2024. There were 3 interview rounds.
(1 Question)
- Q1. Node js, Express, React js, javascript, html, css, some coding tests. Duration 1 hour. Online interview. They asked almost everything. Challenging but can crack easily if you are experienced. The interview...
(1 Question)
- Q1. You need to travel to the office where they mention, but you will get notified only a day before the interview. I was travelling from coimbatore to chennai unplanned. Interviewer was very good talented. He...
(1 Question)
- Q1. Really really worst discussion with HR Ayushi Pathak. Its a one-way conversation, she speaks you listen. I never expected this kind of attitude in capgemini. I Refused the offer after HR round. Cant even i...
Interview Preparation Tips
- nodejs
- react js
- Javascript
- docker
- Jenkins
- jest
- CSS
- mysql
- MongoDB
Selected
I applied via campus placement at Asia Pacific Institute of Management Technology, Panipat and was interviewed in Jan 2024. There were 2 interview rounds.
React js and node js questions
(4 Questions)
- Q1. Introduction and mern stack questions
- Q2. React js questions and answers
- Q3. Java script basically used in
- Q4. HTML used for website create
- Ans.
HTML is a markup language used to create the structure of a website.
HTML stands for HyperText Markup Language
It is used to define the structure of web pages using elements like ,
, ,,, etc.
It uses tags to enclose content and provide formatting, such as
for headings and for links
Answered by AIAdd your answer
Interview Preparation Tips
Skills evaluated in this interview
Shubham Kumar
I applied via campus placement at Vel tech multitech dr.rangarajan dr.sakunthala engineering college, Chennai and was interviewed in Dec 2021. There were 2 interview rounds.
That test is really very good because they ask some good aptitude questions in this round along with english.
My second round is the coding round in which they have given total 6 question and from that I solve 4 questions.
Interview Preparation Tips
Full Stack Software Developer Interview Questions & Answers
Deloitte
Anonymous
posted on 20 Apr 2024
Selected
I applied via Recruitment Consulltant and was interviewed in Mar 2024. There were 2 interview rounds.
(1 Question)
- Q1. Python langauge questions.
(1 Question)
- Q1. Related to projects mentioned in my Resume.
Full Stack Developer Interview Questions & Answers
Tech Mahindra
Samiksha Dhalwar
posted on 25 Jul 2023
Selected
I applied via Walk-in and was interviewed in Jun 2023. There were 3 interview rounds.
Aptitude test questions, let's test your knowledge about preposition
(5 Questions)
- Q1. Tell me about your self
- Ans.
Sir/Madam. First of all, Thank you for giving me this opportunity to introduce my self. My Name Samiksha Dhalwar. I am from yavatmal. I did my bachelor's degree in BCA from CMCS college amravati University. Currently I am pursuing my master degree in MCA from GH Raisoni amravati University .I am skilled in react JS and have good knowledge of Java.I intern in growsoft Technologies LLP company as a Full stack developmen
- Q2. What is your strength and weekness
- Ans.
Sir,I am hardworking self motivated and optimistic person. I always over prepare for any work that is assigned to me
- Q3. Why do you need job
- Q4. What are your career goals
- Q5. Why do you want to join in this company
- Ans.
As s fresher, I need a platform to start my career. I have gone throught your company profile and learnt that your company encourage fresh talent and provide good work culture .By joining your company.
Aditya pal
(1 Question)
- Q1. Tell me about yourself
Selected
I applied via Company Website and was interviewed in May 2023. There were 2 interview rounds.
(6 Questions)
- Q1. About the knowledge of front-end of website design
- Q2. About the knowledge of Back-end of website
- Q3. About the skill
- Q4. Anything about my life
- Q5. About the knowledge of course
- Q6. There is about many things
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Jul 2023. There were 2 interview rounds.
(5 Questions)
- Q1. Tell me about your self. Why are you interested in this company/role?
- Q2. Do you have any questions for us
- Q3. Greatest professional achievement so far
- Q4. Short team and long team goals
- Q5. Your strength & weakness
Interview Preparation Tips
- Core java SQL
- SQL
- MongoDB
- Git hub
- Spring Boot
- JDBC
I applied via Naukri.com and was interviewed in Jul 2023. There were 4 interview rounds.
Quantitive aptitude, reasoning
(3 Questions)
- Q1. Tell me about yourself
- Q2. What is your weakness and strength?
- Q3. Why should I hire you
(1 Question)
- Q1. Programming related questions
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