多项选择题 Which of the following is true about routers internal to a totally NSSA area?（）

单项选择题 Router R1, an ASBR connected to the Internet and to backbone area 0, has been configured with a default - information originate command. Which of the following is true about the effects of this configuration command?（）

单项选择题 The following output exists on Router R1, a router internal to area 1. What can you d etermine as true from the output of the show ip ospf database summary command?（）