单项选择题
A. Router ISP1 should be configured to peer with router B
B. Router ISP2 should be configured with no synchronization
C. Router ISP1 should be configured with no synchronization
D. Router ISP2 should be configured with no auto-summary.
E. Router ISP1 or IPS2 should be configured with network 176.16.10.0 mask 255.255.255.0
单项选择题 WhichmechanismdoesOSPFv3usewhentherouterLSAistoobigtobesentout？（）
单项选择题 Refer to the exhibit. Routers A and B are directly connected and running OSPF， but they are unable to form a neighbor relationship. What is the most likely cause？（）
单项选择题 Refer to the exhibit. Routers A and B are directly connected and running EIGRP， but they are unable to form a neighbor relationship. What is the most likely cause？ （）
