我看的教材是《CCNA Cisco Certified Network Associate Study Guide Sixth Edition》 ' K, L- W5 w ^# ]6 T+ \$ J: j; ]作者Todd Lammle# F' w# a8 r! l6 y6 {9 v
第375题和该教材中542页Written Lab 8.1 Question 7是一样的。答案在550页Answers 7 “when all ports are in either the blocking or forwarding mode”