商品品种结构是否合理，实质上是商品能否广大消费者（）的消费需要问题。
A. 多层次
B. 特殊化
C. 多样化
D. 个性化
E. 专业化
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WhichofthefollowingBESTdescribesabenefitofRAID0?（）
A. Highfaulttolerance
B. Easeoffailurerecovery
C. Highperformance
D. Noconfiguration
Anadministratoristroubleshootingacommunicationissuebetweentwocomputersonthesame Layer2switch. WhichofthefollowingistheBESTwaytodetermineiftheswitchiscausingtheissue?（）
A. SetupanACLthatallowsandlogsallIPtrafficbetweenthetwocomputers
B. Configureaspanningtreetocheckforaloop
C. SetupaspanportontheswitchtowatchforCRCerrors
D. Connectbothcomputersusingacrossovercable
Whichofthefollowingisabestpracticethatcanbeusedtoensureconsistencywhenbuildingsystems?（）
A. Serverbuildchecklist
B. Serverbaseliningtools
C. Architecturediagrams
D. Hardwarecompatibilitylist
After successfully testing a probable cause to an issue， which of the following is the NEXTtroubleshooting step？（）
A. Implement the solution or escalate.
B. Perform a root cause analysis.
C. Establish a plan of action to resolve the problem.
D. Verify full system functionality and if applicable implement preventative measures.
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