单选题According to JUNOS software route selection algorithm， which IS-IS route type is most preferred？（）A
Level 1 internal routesB
Level 1 external routesC
Level 2 internal routesD
Level 2 external routes
题目内容(请给出正确答案)
单选题
According to JUNOS software route selection algorithm， which IS-IS route type is most preferred？（）
A
Level 1 internal routes
B
Level 1 external routes
C
Level 2 internal routes
D
Level 2 external routes
