线路中断，铁路组织原列车绕道运输时，旅客原票（）但中途下车即行失效。 ["补收差额票价","退还差额票价","不补不退"]
杂交
Your company has two primary divisions： Products and Services. The Products division is on network 150.10.640/21. The Services division is on network 150.10.72.0/21. You want to summarize both networks into one routing statement. Which IP address and subnet mask combination would most efficiently accomplish this？（） [" 150.10.64.0\/21"," 150.10.64.0\/22"," 150.10.64.0\/20"," 150.10.0.0.\/16"]
What are two benefits of using NAT?（） [" NAT protects network security because private networks are not advertised."," NAT accelerates the routing process because no modifications are made on the packets."," Dynamic NAT facilitates connections from the outside of the network."," NAT facilitates end-to-end communication when IPsec is enable."," NAT eliminates the need to re-address all host that require extemal access."," NAT conserves addresses through host MAC-level multiplexing."]
Which two types of QoS functionality will be provided by Network-Based Application Recognition？（） ["NBAR provides the ability to configure MCQ； it is a mandatory MCQ component.","NBAR provides deep packet inspection and is used for advanced packet classification.","NBAR provides per-protocol packet and byte accounting functionality； it is used to track bandwidth utilization for all protocols described in the loaded PDLMs.","NBAR provides scheduling in an MQC policy map using an advanced algorithm."]
简述团体课题解决与班级团体。
