Final answer:
Vertical scaling involves adding a new server rack to meet higher expectations in the existing system. It focuses on increasing the capacity of a single server without major architectural changes.
Step-by-step explanation:
Adding a new server rack in the existing system to meet higher expectations is known as vertical scaling. With vertical scaling, the focus is on increasing the capacity of a single server or device by adding more resources, such as RAM, storage, or processing power. This allows the system to handle a larger workload and support more users without the need for major architectural changes.
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