Which of the following settings will reduce packet overhead and overall latency in a standalone point-to-point bridge deployment？（） ["enable concatenation on the non-root bridge only","enable concatenation on the root bridge only","enable concatenation on both the root bridge and non-root bridge","enable concatenation on the root bridge and set it as desirable on the non-root bridge","set concatenation as desirable on the root bridge and enable it on the non-root bridge"]
In a Cisco SDN， every element in the network acts as a point of defense. Which two best describethe features of Cisco SDN？ （） [" enables automated threat response"," enables noncompliant device access"," enables endpoint posture enforcement"," enables third-party client and server protocol"]
下列各种价格中，符合最优售价条件的有（）。 ["边际收入等于边际成本时的价格","边际利润等于零时的价格","收入最多时的价格","利润最大时的价格","成本最低时的价格"]
按照《建筑安装工程费用项目组成》（建标［2013］44号）的规定，试验部门使用的属于固定资产的设备仪器的维修费，属于（）。 ["A.检验试验费 ","B.研究试验费 ","C.固定资产使用费 ","D.工具用具使用费"]
Deploying the cisco unified computing system platform into the data center provides which two benefits?（） ["it leverages low-speed interfaces","only one configuration is used for all blades","storage, computing and networking services are combined onto one blade","it is A pra-as-you-go incremental deployment","server replacement is as easy as replacing the physical blade"]
简述“养生之道”。
