[单选] SMB network decision makers commonly site which of the following as typical network requirements?（）

从学术角度探讨，（）是衍生工具的两个基本构件。 远期和互换。 远期和期货。 远期和期权。 期货和期权。 六淫 You are operating a multi-vendor network and are considering adding redundancy at the access level. Which routing redundancy solution should you implement?（） Both Gateway Load Balancing Protocoland Hot Stand by Router Protocol。 Gateway Load Balancing Protocol。 Virtual Router Redundancy Protocol。 Hot Stand by Router Protocol。 写出完成下列功能的UNIX命令。显示当前目录jj.a文件的内容 繁殖季节产卵完成后，亲鳗会全部死亡的鱼种是（）。 A.七鳃鳗 。 B.鳗鲡 。 C.海鳗 。 D.盲鳗。 SMB network decision makers commonly site which of the following as typical network requirements?（）