フリー問題

問題文

An integration engineer plans the naming scheme for a publish and subscribe deployment that carries readings from many buildings. Which pair states what the published topic provides and what the newly matched subscriber can obtain?

選択肢

1. The broker sits between the two ends, so the published topic forms the layered hierarchy and the newly matched subscriber obtains the stored value in that integration specification.
2. The broker sits between the two ends, so the published topic forms the layered socket and the newly matched subscriber erases the stored value in that integration specification.
3. The broker sits between the two ends, so the published topic forms the layered socket and the newly matched subscriber obtains the stored value in that integration specification.
4. The broker sits between the two ends, so the published topic forms the layered hierarchy and the newly matched subscriber erases the stored value in that integration specification.