多项选择题
A. null password B. simple password C. message digest 5 D. Password Authentication Protocol E. Challenge Handshake Authentication Protocol
WhenconfiguringOSPFontheERX，whatisthedefaultauto-costre...
单项选择题When configuring OSPF on the ERX， what is the default auto-cost reference-bandwidth value？（）
A. 1 Mbps B. 10 Mbps C. 100 Mbps D. 1000 Mbps
Whywouldyoumakeanon-backboneareaastubornot-so-stubbyare...
单项选择题Why would you make a non-backbone area a stub or not-so-stubby area？（）
A. to aggregate routes learned from the ABR B. to lower the cost of routes advertised by the ABR C. to connect a non-contiguous area to the backbone D. to decrease the size of the link-state database in that area
DuringOSPFadjacencyformation，whatstateisarouterinwhenit...
单项选择题During OSPF adjacency formation， what state is a router in when it is sending LSA header information to its neighbor？ （）
A. Init B. 2Way C. ExStart D. Exchange
