相对离心力
The OSPF RFC 3623 Graceful Restart feature allows you to configure IETF NSF in ultivendor networks. When using OSPF Graceful Restart， which mechanism is used tocontinue forwarding packets during a switchover？（） ["Reverse Path Forwarding","Hardware-based forwarding","UDP forwarding","Layer 2 Forwarding"]
层理
A customer has deployed a wireless core feature set using autonomous access points and now wants to include a satellite building 4500 feet away from the main campus. The customer also wants to provide wireless access to a courtyard for wireless clients in close proximity to the antenna mounting position. Which Cisco Aironet product is the most applicable solution？（） [" Cisco Aironet 1000 Series"," Cisco Aironet 1100 Series"," Cisco Aironet 1200 Series"," Cisco Aironet 1300 Series"," Cisco Aironet 1400 Serie"]
GPON网络采用（）技术，实现（）双向传输。 ["WDM，单纤","TDMA，单纤","广播，双纤","TDMA，双纤"]
在我国，当企业发生亏损时，为维护企业形象，可以用盈余公积发放不超过面值（）的现金股利，发放后法定公积金不得低于注册资本的（）。
