フリー問題

問題文

Capacity planning for the serving tier settles two questions. The first is which direction the tier grows in when demand doubles, given that one request cannot be split across machines. The second is how much of the bought capacity is deliberately left unused so that a spike does not queue. Which pair states each answer?

選択肢

1. The two answers shape the same tier, so the growth path plans the wide streaming and the spare share holds the idle headroom in that documentation.
2. The two answers shape the same tier, so the growth path plans the wide scaleout and the spare share holds the idle headroom in that documentation.
3. The two answers shape the same tier, so the growth path plans the wide streaming and the spare share holds the idle permissions in that documentation.
4. The two answers shape the same tier, so the growth path plans the wide scaleout and the spare share holds the idle permissions in that documentation.