单项选择题
When STP UplinkFast is enabled on a switch utilizing the default bridge priority， what will the new bridge priority be changed to？（）
A.8192 B.16384 C.49152 D.65535
单项选择题 WhatisthepurposeoftheSTPPortFastBPDUguardfeature？（）
问答题 WhichpictureisTrafficShape，why？
单项选择题 IfaportconfiguredwithSTPloopguardstopsreceivingBPDUs，theportwillbeputintowhichstate？（）
