Interview Questions and Answers

Ansible is a configuration management and automation tool, while Terraform is an infrastructure provisioning tool.

• Ansible is used for configuration management, application deployment, and task automation.

• Terraform is used for infrastructure provisioning and managing cloud resources.

• Ansible uses YAML-based playbooks to define tasks and configurations, while Terraform uses HCL (HashiCorp Configuration Language) to define infrastructure as code.

• Ansible is agentless, meaning it d...read more

Docker is a containerization platform for packaging, distributing, and running applications. Kubernetes is a container orchestration tool for managing containerized applications.

• Docker allows you to package an application and its dependencies into a container for easy deployment.

• Kubernetes automates the deployment, scaling, and management of containerized applications.

• Kubernetes provides features like auto-scaling, self-healing, and load balancing, which Docker alone does not...read more

Some common packages used in Ansible are ansible, ansible-lint, ansible-playbook, ansible-vault, and ansible-doc.

• ansible

• ansible-lint

• ansible-playbook

• ansible-vault

• ansible-doc

To create a Jenkins pipeline, you can use the Jenkinsfile to define the stages and steps of the pipeline.

• Create a Jenkinsfile in your project repository

• Define stages and steps in the Jenkinsfile using declarative or scripted syntax

• Commit and push the Jenkinsfile to trigger the pipeline in Jenkins

• Monitor the pipeline execution in Jenkins dashboard

Inode is a data structure in Linux file systems that stores metadata about files, such as permissions, ownership, and location.

• Inodes contain information like file size, timestamps, and pointers to data blocks.

• Each file in a Linux system is associated with an inode.

• Inodes are identified by a unique inode number.

• When a file is created, an inode is also created to store its metadata.

Sort array of strings using final class

• Create a final class with a static method to sort the array of strings

• Use Arrays.sort() method to sort the array of strings

Storage classes in Java define the scope and lifetime of variables.

• There are four storage classes in Java: static, public, protected, and private.

• Static variables are shared among all instances of a class.

• Public variables can be accessed from any other class.

• Protected variables can only be accessed within the same package or by subclasses.

• Private variables can only be accessed within the same class.