多项选择题
A. less frequent SPF calculations
B. fewer hello packets
C. smaller routing tables
D. reduced LSU overhe ad
E. fewer adjacencies needed
单项选择题 Which show command will display only the Type 5 LSAs in the OSPF topology database？（）
单项选择题 Refer to the diagram. Which OSPF configuration command is required to configure Area 3 a s atotally stubby area?（）
单项选择题 The Dev - 1 and Dev -3 routers are OSPF neighbors over the Ethernet 0/0 connection. Based on the show ip ospf neighbor output from the Dev - 1 and Dev - 3 routers, which statement is true?（）