单项选择题
A.CSMA/CD B.CSMA/CA C.CHAP D.Token passing
Which of the following network hardware allows the MOST...
单项选择题Which of the following network hardware allows the MOST network traffic collisions?（）
A.WAP B.Hub C.Switch D.Router
In the OSI model, which of the following layers would b...
单项选择题In the OSI model, which of the following layers would be the cause of a session time-out while browsing the web?（）
A.Laye r2 B.Layer 3 C.Layer 5 D.Layer 7
