多项选择题
A. uses a default IOS metric of 10 on each interface
B. uses an on - demand circuit to reduce the hello and LSA flooding across switched WAN li nks,such as ISDN
C. uses a DIS and a backup DIS to present the psuedo - node on the LAN
D. encapsulates PDUs directly into a data - link frame
E. uses stubby areas to improve network scalability
F. runs PRC (Partial Route Calculations) to calculate IP re achability information
单项选择题 Why should iBGP sessions be fully meshed within a Transit AS?（）
单项选择题 Given the network diagram, which address would successfully summarize only the networks seen? （）
单项选择题 Which routing protocol will continue to receive and process routing updates f rom neighbors after the passive - interface router configuration command is entered?（）