单项选择题
Which statement about standard STS-1 SONET framing is true？（）
A.8 rows by 64 bytes B.6 rows by 64 bytes C.10 rows by 96 bytes D.8 rows by 128 bytes E.9 rows by 90 bytes
单项选择题 WhatisthedefaultBGPscannertime？（）
单项选择题 Youareabouttodesignaveryfastconvergencetimeonaserviceprovidernetwork.Whichfeaturewouldyouutilizetodeclarealinkfailurewithinlessthantwosecondsofthefaultonalink？（）
多项选择题 Whichthreeofthesecanbeaforwardingequivalenceclass？（）
