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CogniAIm Software Developer Interview Questions and Answers
CogniAIm Software Developer Interview Experiences
1 interview found
Anonymous
Selected
I applied via Referral and was interviewed before Dec 2021. There were 2 interview rounds.
An assignment was given to complete it.
(6 Questions)
- Q1. Concepts of React, Firebase and Redux.
- Q2. Difference between class and Functional components
- Ans.
Class components are ES6 classes that extend React.Component while functional components are functions that return JSX.
Class components have state and lifecycle methods while functional components don't.
Functional components are simpler and easier to read and test.
Class components are used when we need to manage state or use lifecycle methods while functional components are used for simple UI components.
Example of clas...
- Q3. How firebase works and how redux works ?
- Ans.
Firebase is a backend platform for building web and mobile applications, while Redux is a state management library for JavaScript applications.
Firebase provides a real-time database, authentication, hosting, and other services for web and mobile apps.
Redux is used to manage the state of an application in a predictable way, making it easier to debug and test.
Firebase can be used with Redux to store and retrieve data fro...
- Q4. Why Redux is used more ?
- Ans.
Redux is used more due to its ability to manage complex state and simplify data flow in large applications.
Redux provides a centralized store for application state
It allows for predictable state management through actions and reducers
Redux can be used with various front-end frameworks such as React, Angular, and Vue
It simplifies data flow in large applications by providing a clear separation of concerns
Redux also enabl...
- Q5. Basic questions on Firebase.
- Q6. Why Functional components is preferred over class components ?
- Ans.
Functional components are preferred over class components due to their simplicity and better performance.
Functional components are simpler and easier to read and write.
They do not require the use of 'this' keyword, which can be confusing.
Functional components are faster and have better performance than class components.
They are easier to test and debug.
Functional components can be used with React Hooks, which provide a...
Interview Preparation Tips
Skills evaluated in this interview
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Interview Questionnaire
3 Questions
- Q1. Mathematical ,verbal, logical, puzzles, pseudo code
- Q2. Verbal
- Q3. Logical
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. Based on programming
I applied via Campus Placement and was interviewed before May 2021. There were 4 interview rounds.
VERBAL QUANT DI/LR and Picture based test
(1 Question)
- Q1. Write a fibonaci series in c++ or C?
- Ans.
Fibonacci series can be easily implemented using loops in C++ or C.
Declare variables for first two numbers of the series
Use a loop to calculate and print the next number in the series
Repeat the loop until desired number of terms are printed
(1 Question)
- Q1. Informed about the policies and made us sign a document
Interview Preparation Tips
Skills evaluated in this interview
I appeared for an interview before Sep 2020.
Round duration - 90 minutes
Round difficulty - Easy
This round was held during university hours and consisted of 2 coding questions.
(1 Question)
Round duration - 120 minutes
Round difficulty - Easy
Make sure you do no cutting and are clear about the approach you'd be following.
- Q1. What is the running median of an input stream?
- Ans.
Running median of an input stream is the median value of the numbers seen so far in a continuous stream of data.
Maintain two heaps - a max heap for the lower half of the numbers and a min heap for the upper half.
Keep the number of elements in the two heaps balanced or differ by at most 1.
If the total number of elements is odd, the median is the root of the max heap. If even, it is the average of the roots of the two he...
Interview Preparation Tips
Prepare for company-wise interview questions according to the company in which you are applying. Try to write the code yourself and if got stuck in between then take help from the internet. I recommend you Codezen of Coding Ninjas for practicing Data Structures and Algorithms based questions.
Application resume tips for other job seekersBe sure 100% of what you write in your resume and prepare for that before the interview what is written on resume.
Final outcome of the interviewSelectedSkills evaluated in this interview
I applied via Recruitment Consultant and was interviewed before Oct 2020. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. What is Abstraction
- Q2. Concept of hiding implementation
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Mar 2021. There was 1 interview round.
Interview Questionnaire
4 Questions
- Q1. Yourself
- Q2. How do you feel about working nights and weekends?
- Ans.
I am open to working nights and weekends if it aligns with project needs and team goals, ensuring productivity and collaboration.
Flexibility: I understand that software development can require off-hours work, especially during critical project phases.
Team Collaboration: Working nights or weekends can enhance communication with team members in different time zones.
Project Deadlines: I am willing to put in extra hours to...
- Q3. I will try to complete my tasks within weekdays effectively and efficiently to avoid weekand night work.
- Q4. What is the difference b/w confidence and over confidence?
Interview Preparation Tips
I applied via LinkedIn and was interviewed in Apr 2021. There were 4 interview rounds.
Interview Questionnaire
2 Questions
- Q1. What is data structures
- Ans.
Data structures are ways of organizing and storing data in a computer so that it can be accessed and used efficiently.
Data structures are used to manage and manipulate data.
They can be implemented using arrays, linked lists, trees, graphs, and other methods.
Examples include stacks, queues, hash tables, and binary search trees.
- Q2. Why database
- Ans.
Databases are essential for storing and managing large amounts of data efficiently.
Databases allow for easy organization and retrieval of data
They provide data security and integrity
Databases enable scalability and performance optimization
Examples include MySQL, Oracle, MongoDB, and SQL Server
Interview Preparation Tips
Skills evaluated in this interview
I applied via Naukri.com and was interviewed before May 2021. There were 3 interview rounds.
(1 Question)
- Q1. Java Collection, OOPS, Seralization
(1 Question)
- Q1. Java OOPS, Collection, threading, SQL
(1 Question)
- Q1. Nothing specific, Salary Negotiations.
Interview Preparation Tips
I applied via Company Website and was interviewed before Jan 2021. There were 5 interview rounds.
Interview Questionnaire
3 Questions
- Q1. Tell me about yourself?
- Q2. Normalization concept,Java basics inheritance overloading, encapsulation ,update table ,related to projects in final year
- Q3. Situation based questions based on project
Interview Preparation Tips
All the Best😊😊
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Full Stack Developer
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