单项选择题
A. The eBGP peer neighborship uses TCP
B. The eBGP peer uses port 180 (default)
C. The eBGP peer uses the same ASN as the local router
D. The eBGP peer updates its AS_Path PA before sending updates to this router
多项选择题 Which of the following are most likely to be used as an ASN by a company that has a registered public 16 -bit ASN?（）
单项选择题 Router R1, in ASN 11, learns a BGP route from BGP peer R22 in ASN 22. R1 and then uses BGP to advertise the route to R2, also in ASN 11. What ASNs would you see in the BGP table on R2 for this route?（）
单项选择题 Class C network 200.1.1.0/24 was allocated to an ISP that operated primarily in AsiA.That ISP then assigned this entire Class C network to one of its Asian customers. Network 200.1.2.0/24 has yet to be assigned to any ISP. Which of the following is most likely to be true?（）