According to this picture, we can judge:

According to this picture, we can judge:

A . The system ID of R1 is ee8c.a0c2.baf1
B. R1 has both level1-1 and level-1-2 dimension information
C. R1 only has link status information of level1-2
D. In the leve1-2 network, there are a total of 8 routers

View Answer

Answer: A