单项选择题
Given the configuration shown in the exhibit, what is the function of the protect-loopback filter?（）
A. to protect the Routing Engine
B. to protect all interfaces on the device
C. to protect the Packet Forwarding Engine
D. to protect the management interface
多项选择题 Referring to the exhibit, which two statements are true?（）
单项选择题 Given the configuration and routing table shown in the exhibit, which routes will be advertised to OSPF neighbors because of the demo policy?（）
单项选择题 Given the configuration shown in the exhibit, what will happen to traffic from source 10.10.10.25 destined to 200.200.200.1?（）