問題文
An administrator asks where the namespace of a very large cluster physically lives, given that it has to hold billions of objects and must not be capped by the memory of one machine.
選択肢
- It lives in the embedded persistent store, and only the part in active use is kept in the memory cache.
- It lives in the resident heap listing, and only the part in active use is kept in the memory cache.
- It lives in the replicated block collection, and only the part in active use is kept in the memory cache.
- It lives in the shared network mount, and only the part in active use is kept in the memory cache.