Description: Vertical scaling is the process of adding resources to a single machine to handle increased load. This can include adding more CPUs, RAM, storage, or any other resource that enhances system performance. Unlike horizontal scaling, which involves adding more machines to distribute the load, vertical scaling focuses on improving the capacity of a single unit. This technique is particularly useful in environments where simplicity and centralized management are priorities. However, it has its limitations, as each machine has a physical limit on the amount of resources that can be added. As the load increases, vertical scaling can become costly and less efficient, as eventually a point will be reached where no more resources can be added. Despite this, vertical scaling remains a popular option for many applications, especially those requiring high performance on a single server, such as databases and critical enterprise applications. Its implementation can be simpler, as it does not require the complexity of managing multiple servers, making it an attractive solution for many organizations.