2. 职称考试
  3. Refer to the exhibit． A problem with net

Refer to the exhibit． A problem with net

恬恬2020-09-17  23
问题 Refer to the exhibit． A problem with network connectivity has been observed． It is suspected that the cable  connected to switch port Fa0/9 on Switch1 is disconnected． What would be an effect of this cable being disconnected?
选项 A、Host B would not be able to access the server in VLAN9 until the cable is reconnected．B、Communication between VLAN3 and the other VLANs would be disabled．C、The transfer of files from Host B to the server in VLAN9 would be significantly slower．D、For less than a minute, Host B would not be able to access the server in VLAN9． Then normal network function would resume．
答案D
解析在交换机间是有一个环路存在的，所以运行的生成树就会block一个端口，从而阻断环路的产生，所以端口f0/9就被block了，所以就没有了连通性。而生成树的选举过程在正常的情况下是需要至少50秒的。所以在生成树选举的过程中HOST B是不能访问到处于VLAN 9中的SERVER的。
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