Jawahar Navodaya Vidyalaya Interview Questions and Answers

Tools for continuous integration include Jenkins, Travis CI, CircleCI, GitLab CI/CD, and Bamboo.

• Jenkins is a popular open-source tool for continuous integration and delivery

• Travis CI is a cloud-based continuous integration platform

• CircleCI is a cloud-based continuous integration and delivery platform

• GitLab CI/CD is a built-in continuous integration and delivery tool in GitLab

• Bamboo is a continuous integration and deployment tool from Atlassian

Handling load for a distributed system involves load balancing, scaling, caching, and monitoring.

• Implement load balancing to evenly distribute incoming traffic across multiple servers.

• Scale the system by adding more servers or resources to handle increased load.

• Utilize caching to store frequently accessed data and reduce the load on the backend.

• Monitor system performance and adjust resources as needed to maintain optimal performance.

• Examples: Using a load balancer like Nginx ...read more

OOPS concepts are the principles of Object-Oriented Programming that help in designing and implementing software systems.

• Encapsulation - bundling of data and methods that operate on that data

• Inheritance - ability of a class to inherit properties and methods from a parent class

• Polymorphism - ability of objects to take on multiple forms or behaviors

• Abstraction - hiding of complex implementation details and providing a simplified interface

• Examples: Java, C++, Python

DevOps benefits include faster delivery, improved collaboration, increased efficiency, and better quality.

• Faster time-to-market for software releases

• Improved collaboration between development and operations teams

• Increased efficiency through automation and continuous delivery

• Better quality through continuous testing and monitoring

• Reduced risk of errors and downtime

• Improved customer satisfaction and loyalty

• Cost savings through streamlined processes and reduced waste

Abstraction is a fundamental concept in OOPS that allows hiding implementation details and focusing on essential features.

• Abstraction is the process of identifying essential features and ignoring the rest.

• It allows creating abstract classes and interfaces that can be implemented by concrete classes.

• Abstraction helps in achieving encapsulation and modularity in software design.

• Examples of abstraction include abstract classes, interfaces, and inheritance.

• Abstraction is one of t...read more

Parameterize refers to the process of defining parameters or variables in a system or program.

• Parameterizing allows for greater flexibility and customization in a system or program.

• It can be used in various fields such as engineering, finance, and computer science.

• For example, in a computer program, parameterizing can allow the user to input values for certain variables, making the program more adaptable to different scenarios.