A.CPIB.BACC.SPID.EAC（） is the sum of all budgets establ……

单项选择题In project management and systems engineering, （） is a deliverable-oriented breakdown of a project into smaller components. It is a key project deliverable that organizes the team's work into manageable sections.

A.RBS
B.PBS
C.GBS
D.WBS

单项选择题Project Integration Management includes the processes and activities to identify, define, combine, unify, and coordinate the various processes and project management activities within the Project Management Process Groups. （） process does not belong to Project Integration Management.

A.Developing project charter
B.Developing project management plan
C.Analyzing project risks
D.Monitoring and controlling project

单项选择题The IoT architecture can be divided into three layers. （）is the key layer to realize the foundational capabilities which support the electronic devices interact with physical world.

A. Sensing layer
B. Network layer
C. Application layer
D. Operation layer

单项选择题（） is a programming model and an associated implementation for processing and generating big data sets with a parallel, distributed algorithm on a cluster. The model is a specialization of the split-apply-combine strategy for data analysis.

A.HDFS
B.Chukwa
C.MapReduce
D.HBase

单项选择题应用系统运行中涉及的安全和保密层次包括系统级安全、资源访问安全、数据域安全等。以下描述不正确的是（）。

A.按粒度从大到小排序为系统级安全、资源访问安全、数据域安全
B.系统级安全是应用系统的第一道防线
C.功能性安全会对程序流程产生影响
D.数据域安全可以细分为文本级数据域安全和字段级数据域安全