Positive SSL
A 橋接器(Bridge)
B 數據機(MODEM)
C 解多工器(Demultiplexer)
D 集線器(Hub)

A 輪詢(Polling)
B 符記(Token)傳遞
C 向量中斷(Interrupt)
D CSMA/CD

A 輪詢(Polling)
B 符記(Token)傳遞
C 向量中斷(Interrupt)
D CSMA/CD

A 210.63.4.5
B 168.95.192.224
C 222.38.2.48
D 150.100.256.123

A 255.255.255.128
B 255.255.255.192
C 255.255.255.240
D 255.255.255.242

A 流量控制
B 停止及等待
C 循環冗餘檢查
D 封包分段及重組