【點擊查看：2021年上半年系統(tǒng)集成項目管理工程師《綜合知識》真題及答案解析匯總】
71、The ETL technology is mainly used in (  ) stage.
A、 data collection
B、 data storage
C、 data management
D、 data analysis
信管網(wǎng)參考答案：A
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72、(  ) is not used on perception layer of Internet of Things.
A、 WLAN
E、RFID
C、 Bluetooth
D、 SOA
信管網(wǎng)參考答案：D
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73、The (  ) is a hierarchical decomposition of the total scope of work to be carried out by the project team to accomplish the project objectives and create the required deliverable.
A、 OBS
B、 WBS
C、 RBS
D、 RAM
信管網(wǎng)參考答案：B
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74、(  ) is a measure of schedule performance expressed as the difference between the earned value and the planned value.
A、 Schedule variance (SV)
B、 Cost variance (CV)
C、 Actual cost (AC)
D、 Earned value (EV)
信管網(wǎng)參考答案：A
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75、(  ) information is not disclosed to unauthorized individuals.
A、 Authenticity
B、 Integrity
C、 Availability
D、 Confidentiality
信管網(wǎng)參考答案：D
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