WhichtwoarevalidIS－ISPDUtypes?()A.broadcasthellosB.Level1LANhellosC.Point-to-pointhellosD.Level2point-to-pointhellos
题目
WhichtwoarevalidIS－ISPDUtypes?()
A.broadcasthellos
B.Level1LANhellos
C.Point-to-pointhellos
D.Level2point-to-pointhellos