单项选择题
A. OSPF process ID
B. OSPF router ID
C. OSPF network type
D. OSPF memory usage
E. OSPF CPU utilization
F. OSPF stub area configurations
多项选择题 When verifying the OSPF link state database, which type of LSAs should you expect to see within the different OS PF area types?（）
多项选择题 You are troubleshooting an OSPF problem where external routes are not showing up in the OSPF database. Which two options a re valid checks that should be performed first to verify proper OSPF operation?（）
多项选择题 The maximum number of routers per OSPF area typically depends on which three factors?（）