多项选择题
A. Both are configured as type external.
B. Both configurations use the peer-as command.
C. Neither advertises the local-preference attribute.
D. Both set next-hop self when advertising routes to peers.
E. Both modify the AS-path attribute when advertising routes.
单项选择题 An OSPF non-backbone area allows external routes to be flooded within the area. These externalroutes are propagated into other areas. However, external routes from other areas are not allowed to enter this area. Which type of OSPF area does this describe?（）
单项选择题 In JUNOS software, how is route summarization at the L1/L2 border configured?（）
多项选择题 Which two are default preference values for both internal and external IS-IS Level 2 routes on a Juniper Networks router?（）