Lupin Interview Questions and Answers

To merge particular commits to a branch, use git cherry-pick command.

• Identify the commit hash of the specific commit you want to merge

• Switch to the branch where you want to merge the commit

• Use 'git cherry-pick ' to apply the changes of that commit to the current branch

I have experience with various configuration management tools such as Ansible, Puppet, and Chef.

• Implemented Ansible playbooks to automate server configuration

• Managed Puppet manifests to ensure consistent server configurations

• Utilized Chef cookbooks to deploy applications across multiple environments

An Ansible playbook is a configuration management tool used to automate tasks on multiple servers.

• Ansible playbooks are written in YAML format.

• Playbooks consist of plays, which are a set of tasks to be executed on remote servers.

• Tasks in playbooks can include modules to perform specific actions like installing packages, copying files, or restarting services.

• Variables can be defined in playbooks to make them reusable and dynamic.

• Handlers can be used to trigger actions only whe...read more

A CI/CD pipeline automates the process of testing and deploying code changes.

• Set up version control system (e.g. Git)

• Create a build stage to compile code

• Include automated testing (unit, integration, etc.)

• Deploy to staging environment for further testing

• Deploy to production environment upon successful tests

Stream API is a feature in Java that allows processing of collections of objects in a functional way.

• Stream API provides a set of functional interfaces to perform operations on collections.

• It supports operations like filter, map, reduce, and forEach.

• It can be used with collections like List, Set, and Map.

• Example: List names = Arrays.asList("John", "Mary", "Bob"); names.stream().filter(name -> name.startsWith("J")).forEach(System.out::println);

• Example: List numbers = Arrays.as...read more