As one of the core technologies of block chains, ( ) refers to the fact that transaction account is performed by multiple nodes distributed in different places and each node records a complete account, so they can participate in the supervision of transaction legitimacy and testify for it together.

试卷相关题目

• 1(   ) is the process of identifying individual project risks as well as source of Over all project risk, and documenting their characteristics.

  A.Identify Risks

  B.Monitor Risks

  C.Implement Risk Responses

  D.Plan Risk Management

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• 2(    ) is a graph that shows the relationship between two variables.

  A.histogram

  B.flowchart

  C.scatter diagram

  D.matrix diagram

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• 3(   ) is called the gateway of network security, which is used to identify what kind of data packets can enter the enterprise intranet.

  A.Anti-virus software

  B.Trojan horse

  C.Secret key

  D.Firewall

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• 4The main direction of Integration of Industrialization and Informatization is (  ).

  A.internet plus

  B.big data

  C.cloud computing

  D.intelligent manufacturing

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• 5关于标准分级与类型的描述，不正确的是（    ）。

  A.GB/T 指推荐性国家标准

  B.国家标准一般有效期为 3 年

  C.强制性标准的形式包含全文强制和条文强制

  D.国家标准的制定过程包括立项，起草、征求意见、审查、批准等阶段

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