单项选择题
Which LSA is flooded across area boundaries?（）
A.Type1 B.Type2 C.Type3 D.Type5
单项选择题 What is the address range associated with the link-local scope?（）
单项选择题 What defines a BGP confederation?（）
多项选择题 Which two conditions, when met, allow an IS-IS Level 2 router to be considered attached?（）
