为方便广大考生考后估分对答案，希赛网特向广大学员和网友搜集整理了2022上半年广东系统集成项目管理工程师上午真题（71-75），供大家参考。希赛网老师也将在考后进行真题答案解析，敬请广大考生关注。

第71题 （）is the core component of bitcoin.

A、Block chain

B、Hash

C、RSA

D、DES

第72题 （）is the action to eliminate the caues or ruduce the likehood of recurrence of a detected Nonconformity or other undersirabee situatlon.

A、corrective action

B、continual improvement

C、known error

D、preventive action

第73题 （）put forward the theory of statistical process control(SPC),which used statistical technology to monitor the production process to reduce the dependence on inspection.

A、Juran

B、shewhart

C、feigenbaum

D、taylor

74、（持续更新中）

第75题 （）is not primarily used to protect thee correctness and integrity of data.

A、CA certification

B、Identity authentication service

C、Digital signature

D、Intrusion detection system