フリー問題

問題文

Two lightweight application protocols reach the same node over different transports: one over a kept connection and one over single datagrams. Which pair states what the broker method keeps and what the datagram method fits into?

選択肢

1. Two lightweight methods carry the same message over different transports, so the broker method keeps the paired stream and the datagram method fits the small bridge in that specification.
2. Two lightweight methods carry the same message over different transports, so the broker method keeps the paired waveguide and the datagram method fits the small block in that specification.
3. Two lightweight methods carry the same message over different transports, so the broker method keeps the paired waveguide and the datagram method fits the small bridge in that specification.
4. Two lightweight methods carry the same message over different transports, so the broker method keeps the paired stream and the datagram method fits the small block in that specification.