Cogent E Services Software Developer Interview Questions and Answers

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

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

Q1. Basic Java questions
Add your answer
Q2. Spring, Spring boot basics
Add your answer

Q1. Microservices Communications
Add your answer
Q2. Project level experiences
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. Where did you use Service Bus in your application?
Ans. 
I used Service Bus to implement asynchronous communication between microservices in my application.
• Implemented message queuing for decoupling services

• Used Service Bus to handle communication between different components

• Leveraged Service Bus for reliable message delivery
Answered by AI
Add your answer
Q2. SOLID Principles and OOPS
Add your answer
Q3. How is Authorization implemented at your organization?
Ans. 
Authorization at our organization is implemented using role-based access control (RBAC) and OAuth.
• Role-based access control (RBAC) is used to assign permissions to roles, which are then assigned to users based on their job responsibilities.

• OAuth is used for authentication and authorization, allowing users to access resources based on their permissions and roles.

• Access control lists (ACLs) are also used to define specif
Answered by AI
Add your answer
Q4. Why prefer Entity Framework Core over Entity Framework?
Ans. 
Entity Framework Core is preferred for its improved performance, cross-platform support, and new features.
• Entity Framework Core is faster and more lightweight compared to Entity Framework.

• Entity Framework Core supports cross-platform development, allowing for easier deployment on different operating systems.

• Entity Framework Core introduces new features like Global Query Filters, Owned Entities, and Value Conversions fo
Answered by AI
Add your answer

Q1. I am freshers soo please one chance for your company
Add your answer
Q2. Yes I am fresher soo for your company work
Add your answer
Q3. Talk about a range of elements, including customer service.
Ans. 
Customer service is an essential element in software development.
• Customer service involves providing support and assistance to users of software applications.

• It includes addressing user queries, resolving issues, and ensuring customer satisfaction.

• Software developers may interact with customers through various channels like email, phone, or live chat.

• Good customer service can lead to positive user experiences and incre...read more
Answered by AI
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