What is the purpose of STP in a switched LAN?
A.To provide mechanismfor network monitioring in switched environments.
B.To prevent routing loops in networks with redundant paths.
C.To prevent switchting loopsin networks with redundant switched paths.
D.To manage the VLAN database across multiple switches.
E.To create collision domains.
答案是：E，我觉得是C。在《CCNA学习指南（中文第六版）》的P448页第5题。大家认真对待哈！我和老婆打赌呢，本章全做对了有奖励，就差这一道咯。
