フリー問題

問題文

A virtualized function needs an additional instance because its load has grown. Which management element performs that operation on the function?

選択肢

1. The virtualized infrastructure manager, because adding an instance means adding a virtual machine, and whichever element creates the virtual machine is by definition the element that owns the decision to scale the function that will eventually run inside it.
2. The operations support system, because scaling is a business decision, and the number of running instances is then changed from the billing system rather than by the element that owns the function.
3. The element management system, which monitors the function and so is the place where a new instance is created once a counter it watches crosses a threshold.
4. The function's manager, which is responsible for the life cycle of that function's instances, including scaling them out and in.