Xebia
Tele Access E-services Interview Questions and Answers
Q1. 1. What are the differences between Spring and spring boot framework.
Spring Boot is a framework built on top of Spring, providing additional features and simplifying configuration.
Spring Boot provides auto-configuration, reducing the need for manual configuration
Spring Boot includes an embedded server, making it easy to deploy applications
Spring Boot provides a simpler project structure and reduces boilerplate code
Spring Boot includes Actuator, which provides production-ready features like health checks and metrics
Spring Boot is opinionated, p...read more
Q2. Java 8 features and use case Coding program using stream Spring boot
Java 8 features like streams are used in Spring Boot for efficient data processing.
Java 8 introduced streams for functional-style operations on collections.
Streams allow for parallel processing of data, improving performance.
Spring Boot applications can leverage streams for efficient data manipulation.
Example: Using streams to filter and map data in a Spring Boot REST API.
Q3. What projects I have worked on? What is Agile process?
I have worked on various projects including software development, system implementation, and process improvement.
Implemented Agile methodology in software development projects to increase efficiency and collaboration
Led cross-functional teams in daily stand-up meetings, sprint planning, and retrospectives
Utilized tools such as Jira and Trello to track progress and manage tasks
Worked on projects in industries such as finance, healthcare, and technology
Q4. 2. What is use case of concurrent hash map
Concurrent hash map is used for thread-safe operations on a hash map.
Concurrent hash map allows multiple threads to access and modify the map concurrently without causing any data inconsistency or corruption.
It is useful in scenarios where multiple threads need to access a shared hash map, such as in a multi-threaded server application.
Java provides a built-in implementation of concurrent hash map in the java.util.concurrent package.
Example: A web server that maintains a cach...read more
Q5. Provide solutions for development of application
The development of an application requires a thorough understanding of the requirements and the target audience. It also involves selecting the appropriate technology stack and following best practices.
Identify the requirements and target audience
Select the appropriate technology stack
Follow best practices such as modular design, code reviews, and testing
Ensure scalability and security
Consider user experience and design
Continuously update and maintain the application
Q6. Collections in java
Collections in Java are used to store and manipulate groups of objects.
Java provides several collection classes like ArrayList, LinkedList, HashSet, etc.
Collections can store objects of any type, including user-defined classes.
Collections provide methods for adding, removing, and accessing elements.
They also offer functionalities like sorting, searching, and iterating over elements.
Example: ArrayList
names = new ArrayList<>(); names.add("John"); names.add("Jane");
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