フリー問題

問題文

An administrator adds processing units and memory to a running virtual machine without stopping it, and later wants to take some of them out again. Under which condition can a processing unit be taken out while the virtual machine runs, and which value has to be settled before memory can be added that way?

選択肢

1. A processing unit can be taken out while the machine runs if it had been sized that way, and adding memory that way needs the floor settled beforehand.
2. A processing unit can be taken out while the machine runs if it had gone in that way, and adding memory that way needs the ceiling settled beforehand.
3. A processing unit can be taken out while the machine runs if it had been sized that way, and adding memory that way needs the ceiling settled beforehand.
4. A processing unit can be taken out while the machine runs if it had gone in that way, and adding memory that way needs the floor settled beforehand.