Deqode Interview Questions, Process, and Tips

Q1. Can you explain the concepts of Object-Oriented Programming (OOP)?
Ans. 
OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOP focuses on creating objects that interact with each other to solve problems.

• Key concepts include encapsulation, inheritance, and polymorphism.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Inheritance allows classes to inherit at...read more
Answered by AI
Add your answer
Q2. What is the Spring Boot framework?
Ans. 
Spring Boot is a framework for building Java-based applications with minimal configuration.
• Spring Boot simplifies the process of creating stand-alone, production-grade Spring-based applications.

• It provides a range of features including embedded servers, auto-configuration, and production-ready metrics.

• Spring Boot allows developers to quickly set up and run applications with ease, reducing the need for manual configurat...read more
Answered by AI
Add your answer

3 leetcode questions were given 2 hard and 1 medium .They just wanted to know your approach to tackling problems .

Q1. About c++ and python core. Basic things about keywords memory allocation etc
Add your answer
Q2. Sql queries and dbms normalization, acid , designing of rdbms
Add your answer

Q1. What is microservices different pattern?
Ans. 
Microservices are a software architectural style that structures an application as a collection of loosely coupled services.
• Each service is self-contained and can be developed, deployed, and scaled independently.

• Communication between services typically occurs over lightweight protocols like HTTP or messaging queues.

• Microservices allow for greater flexibility, scalability, and resilience compared to monolithic architect...read more
Answered by AI
Add your answer
Q2. Communication of microservices
Ans. 
Communication between microservices is typically done through APIs or messaging systems.
• Microservices communicate with each other using APIs, such as REST or gRPC.

• Message brokers like Kafka or RabbitMQ are commonly used for asynchronous communication between microservices.

• Service mesh tools like Istio can help manage communication between microservices by handling service discovery, load balancing, and security.

• Event-d...read more
Answered by AI
Add your answer
Q3. Different annotations used in the springboot @Qualifier @Transactional etc
Ans. 
Annotations like @Qualifier and @Transactional are used in Spring Boot for dependency injection and transaction management.
• Annotations like @Qualifier are used to specify which bean to inject when multiple beans of the same type are present.

• Annotations like @Transactional are used to mark a method as transactional, allowing for rollback in case of exceptions.

• Annotations like @Component, @Service, @Repository are used f...read more
Answered by AI
Add your answer
Q4. Tell me about the exception handling in the spring boot project
Add your answer
Q5. Coding question given an array like {1,2,3,4,5,6,7,8,9} we have to rotate the array element in pair of 3 like {3 2 1 6 5 4 9 8 7} in this way
Add your answer
Q6. Different HTTP methods
Ans. 
HTTP methods are used to indicate the desired action to be performed on a resource.
• GET - Retrieve data from a server

• POST - Submit data to be processed by a server

• PUT - Update a resource on the server

• DELETE - Remove a resource from the server

• PATCH - Partially update a resource on the server
Answered by AI
Add your answer

There were 3 coding questions.

Oops is must.

Q1. Work experience in any cloud service platforms like AWS, Azure etc
Add your answer
Q2. Logical questions
Add your answer

Q1. Roles and responsibilities in previous organisation
Add your answer
Q2. Salary discussion
Add your answer