100、An administrator notices a Fibre Channel adapter in an ESXi host has been experiencing inconsistent connectivity states Which trigger can be used to quickly identify the issue and alert the administrator so that the issue can be resolved?

解析: Complicated， the question does not comment on whether the path is redundant， if not redundant the correct answer would be D， but if we take into account good practices， the FC would be redundant. 这个问题很复杂，没有评论路径是否冗余，如果不冗余，正确答案应该是D，但是如果我们考虑好的实践，FC将是冗余的。Book course: 6-23 Fibre Channel SAN Components Using SAN switches， you can set up path redundancy to address any path failures from host server to switch， or from storage array to switch. 6-25 Multipathing with Fibre Channel By default， ESXi hosts use only one path from a host to a given LUN at any one time. If the path actively being used by the ESXi host fails， the server selects another available path.书籍课程:6-23光纤通道SAN组件使用SAN交换机，您可以设置路径冗余来解决从主机服务器到交换机或从存储阵列到交换机的任何路径故障。6-25光纤通道多路径默认情况下，ESXi主机在任何时候都只使用一条从主机到给定LUN的路径。如果ESXi主机当前使用的路径出现故障，服务器会选择另一条可用路径。