Explanation:
The correct answer is 'B' - vertical scaling. Vertical scaling, also known as scaling up or scaling down, involves increasing the capacity of a single virtual machine by adding more resources such as memory or CPUs. This is different from horizontal scaling, which involves adding more instances of virtual machines, rather than increasing the capacity of individual machines.
In the context of virtual machine management, which term is used to describe the action of enhancing the machine's capacity by increasing its memory or number of CPUs?
A
agility
B
vertical scaling
C
horizontal scaling
D
elasticity
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