查看root用户的cron计时器设置的命令是()。

A:crontab-u root -l B:crontab -l C:crontab -u root -e D:crontab -u root -r

在Catalyst 6500(Catalyst OS系统)中设置主root的命令格式是

A:spanning-tree vlan<vlans>root primary B:spanning-tree vlan<vlans>root secondary C:set spantree root<vlans> D:set spantree root secondary<vlans>

Catalyst 6500 (Catalyst OS系统)中设置主root的命令格式是______。

A:spanning-tree lan <vans> root primary B:spanning-tree lan <vans> root secondary C:set spantree root <vans> D:set spantree root secondary <vans>

catalyst 6500(catalyst OS系统)中设置主root的命令格式是()。

A:spanning-tree lanroot primary B:spanning-tree lanroot secondary C:set spantree root D:set spantree root secondary

Catalyst 6500 (Catalyst OS系统)中设置主root的命令格式是______。

A:spanning-tree lan <vans> root primary B:spanning-tree lan <vans> root secondary C:set spantree root <vans> D:set spantree root secondary <vans>

Catalyst 6500(Catalyst OS系统)中设置主root的命令格式是()。

A:spanning-tree lan<vans>root primary B:spanning-tree lan<vans>root secondary C:set spantree root<vans> D:set spantree root secondary<vans>

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