[单选] Assuming default setting,how can you erase the VTP database of VLANs on a CISCO IOS switch running in VTP server mode?（）
A . Enable VTP pruning B . From privileged mode ,erase the startup configuration file,then reload. C . From privileged mode ,erase the vlan date file, then reload. D . Cycle the switch power.
游乐设施完成验收检验后，必须在（）个工作日内出具验收检验报告。 1；。 3；。 7；。 10。。
What is the BGP synchronization rule？（） Routing information received through an IBGP session is not forwarded to another IBGP neighbor， onlyto EBGP neighbors。 Routing information received through an EBGP session is not forwarded to another EBGP neighbor，only to IBGP neighbors。 BGP neighbor peerings are established and sychronized using the TCP 3-way handshake。 BGP shall not advertise a route until that route has been learned via an IGP also。
简述影响小孔腐蚀的因素。
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分别简述水痘、麻疹和风疹的流行特点。
Assuming default setting,how can you erase the VTP database of VLANs on a CISCO IOS switch running in VTP server mode?（）
