Exam AZ-900 topic 1 question 378 discussion

Vertical scaling, also known as scaling up or scaling out, is the process of increasing the capacity of a single resource, such as a virtual machine or a database, to meet the demands of a workload. This can be done by adding more resources to the existing resource, such as additional CPUs, memory, or storage. An example of vertical scaling in a cloud environment is adding an additional CPU to an existing Azure virtual machine. This can be done by modifying the VM's size or configuration to include more CPUs, which will allow it to handle a larger workload or more concurrent requests. Other examples of vertical scaling in a cloud environment include adding more memory to a database server, or increasing the capacity of a storage volume. Vertical scaling is typically used to address short-term or temporary increases in workload demand, and is often a faster and simpler way to scale a resource than horizontal scaling, which involves adding additional instances of a resource.