Apache Cassandra is a high-performance, distributed NoSQL database designed to handle large volumes of data across many servers with no single point of failure. This guide will walk you through the process of installing Cassandra on an Ubuntu system. Prerequisites Ubuntu System : This guide assumes you're using Ubuntu 20.04 or later. Java Installed : Apache Cassandra requires Java (JRE version 8 or later). Root or Sudo Access : Ensure you have administrative privileges. Step 1: Update System Packages Always start with updating your package index to ensure all dependencies are up-to-date. Open a terminal and run: sudo apt update && sudo apt upgrade -y Step 2: Install Java Apache Cassandra requires Java to run. You can install OpenJDK using the following commands: sudo apt...