Cogent E Services Node JS Developer Interview Questions and Answers

Programming questions related to Python and React.

Programmatical problem related to Python and React

Q1. Salary Discussion
Add your answer

Programming Problems related to react and python.

Q1. Object Oriented Programming, Memory Management, Multiprocessing, multithreading, GIL, React Components
Add your answer

Q1. Object Oriented Programming, GIL, Multi threading, multiprocessing, React Component, Shallow Copy, Deep Copy
Add your answer

Q1. Object Oriented Programming, GIL, Multi threading, multiprocessing, React Component, Shallow Copy, Deep Copy
Add your answer

Q1. Object Oriented Programming, GIL, Multi threading, multiprocessing, React Component, Shallow Copy, Deep Copy
Add your answer

Q1. Object Oriented Programming, GIL, Multi threading, multiprocessing, React Component, Shallow Copy, Deep Copy, Django ORM, Class Inheritance
Add your answer

Q1. Started with introduction
Add your answer
Q2. Asked about projects
Add your answer
Q3. Asked Architecture related questions and design pattern related questions
Add your answer
Q4. If you have 1 million requests how will you manage that
Ans. 
I would use load balancing, caching, and scaling techniques to manage the 1 million requests.
• Implement load balancing to distribute requests evenly across multiple servers.

• Utilize caching to store frequently accessed data and reduce response times.

• Scale horizontally by adding more servers to handle the increased load.

• Optimize code and database queries to improve performance.

• Monitor system performance and make adjustmen
Answered by AI
Add your answer
Q5. React vs SAP UI5
Ans. 
React is a popular JavaScript library for building user interfaces, while SAP UI5 is a framework for developing enterprise-ready web applications.
• React is more flexible and widely used in the industry.

• SAP UI5 is specifically designed for SAP applications and has built-in support for SAP technologies.

• React has a larger community and ecosystem with more resources and libraries available.

• SAP UI5 provides a consistent user...read more
Answered by AI
Add your answer
Q6. Node VS JAVA
Ans. 
Node.js is a runtime environment for executing JavaScript code outside of a browser, while Java is a general-purpose programming language often used for building enterprise applications.
• Node.js is single-threaded and event-driven, making it ideal for handling asynchronous operations like I/O operations.

• Java is a statically typed language with a strong emphasis on object-oriented programming, making it suitable for larg...read more
Answered by AI
Add your answer
Q7. Multitenancy in sap btp
Ans. 
Multitenancy in SAP BTP allows multiple customers to share the same application instance while keeping their data isolated.
• Multitenancy allows multiple customers (tenants) to use the same application instance.

• Each tenant's data is isolated and secure from other tenants.

• Tenants can customize their own settings, branding, and configurations within the shared application.

• SAP BTP provides tools and features to manage multi...read more
Answered by AI
Add your answer

Arrays and strings - 90 mins

Create Modules, railway reservation system - 60 mins

Q1. Difference between hashmap and hasptable
Add your answer
Q2. Why typescript over javascript
Add your answer
Q3. Find the percentage of increace in the quantity of item after making it price 20% extra
Add your answer
Q4. What is normalization
Add your answer
Q5. Date and time api available
Add your answer

Q1. How can we return multiple data with different data types from a function in .c#
Add your answer
Q2. How to Optimize Stored Procedure
Add your answer
Q3. How do you run Azure Functions Locally
Add your answer
Q4. API Rate Limiting
Add your answer
Q5. API Return Types
Add your answer
Q6. What is a Partial Class
Add your answer

LeetCode , hard questions on dynamic programming, graphs, and more.

DSA, Cn, os, DBMS, ML

Q1. Is relocation a possibility for this position?
Add your answer
Q2. Senior role is there
Add your answer

MCQ test consisting of 70 mcqs in 75 minutes from aptitude english and cs fundamentals. If cleared next paper 2 coding qs medium level

Q1. Two sum leetcode problem
Add your answer
Q2. What problems you faced in your project
Ans. 
I faced challenges with integrating third-party APIs and debugging complex logic.
• Difficulty in understanding and implementing third-party APIs

• Issues with data synchronization between different systems

• Troubleshooting complex logic errors

• Managing dependencies and version conflicts

• Time constraints affecting problem-solving
Answered by AI
Add your answer

Quants, Reasoning and Verbal
Computer fundamental and pseudocode

15 mins with general topics

Q1. What do like in your college the most?
Ans. 
I enjoyed the collaborative projects and hands-on learning experiences in my college.
• Collaborating with classmates on coding projects

• Hands-on experience with different programming languages

• Engaging discussions in computer science classes
Answered by AI
Add your answer
Q2. Do you have any other offer?
Add your answer

Q1. Explain Encapsulation
Ans. 
Encapsulation is the concept of bundling data and methods that operate on the data into a single unit.
• Encapsulation helps in hiding the internal state of an object and only exposing necessary functionalities.

• It allows for better control over the data by preventing direct access from outside the class.

• Encapsulation also helps in achieving data abstraction and information hiding.

• Example: In a class representing a car, th...read more
Answered by AI
Add your answer
Q2. How to call rest API
Ans. 
To call a REST API, you can use tools like Postman or code in languages like JavaScript or Python.
• Use tools like Postman to make HTTP requests to the API endpoints

• In programming languages like JavaScript, use libraries like Axios or Fetch to make API calls

• Include necessary headers, parameters, and authentication tokens in the request

• Handle the response data accordingly, whether it's JSON, XML, or other formats
Answered by AI
Add your answer