单项选择题 Which BGP option i s required when load sharing over multiple equal - bandwidth parallel links from a single CE router to a single ISP router over eBGP?（）

单项选择题 Refer to the above exhibit. Why are the EIGRP neighbors for this router not learning the routes redistributed from OSPF?（）

单项选择题 Refer to the above exhibit. Why is the 140.140.0.0 network not used as the gateway of last resort even though it is configured first?（）