As an experienced network administrator, you are asked to troubleshoot a QoS problem. In which way might the Cisco NetFlow be helpful during the troubleshooting process?（） [" NetFlow can discover the protocols in use and automatically adjust QoS traffic classes to meet policy-map requirements."," NetFlow records can be used to understand traffic profiles per class of service for data, voice, and video traffic."," NetFlow can be configured to identify voice and video traffic flows and place them into a low-latency queue for expedited processing."," NetFlow can report on the number of traffic matches for each class map in a configured QoS policy configuration."]
以下属于公司的民事权利能力受到自然性质限制的情况是（） ["对公司转投资的限制","对公司担保的限制","公司没有肖像权","公司没有诉讼权"]
作用于淹没物体上的静水总压力只有一个铅垂向上的浮力，其大小等于该物体所排开的同体积的水重，这是著名的（）。 ["连通器原理","动量原理","帕斯卡原理","阿基米德原理"]
商业银行的资产是商业银行获得收入的唯一来源。
经营风险是指企业因经营上的原因而导致（）变动的风险。 ["A.收入 ","B.利润 ","C.费用 ","D.成本"]
写出完成下列功能的UNIX命令。将当前目录下文件wb1，wb2拷贝到子目录/home下。
