フリー問題

問題文

A source pool holds far fewer public addresses than the private range behind it, and port translation has not been configured for that pool. Which pair states what kind of address mapping that pool keeps and what each public value in it is for two inside hosts at once?

選択肢

1. That entry keeps one chunked mapping and every public address stays unshareable from that arrangement.
2. That entry keeps one chunked mapping and every public address stays revocable from that arrangement.
3. That entry keeps one discrete mapping and every public address stays unshareable from that arrangement.
4. That entry keeps one discrete mapping and every public address stays revocable from that arrangement.