软考备考每日试题(231013)
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71、When performing project activity duration estimates,()is not included in the estimation techniques.
A、Three-point Estimating
B、Analogous Estimating
C、Parametric Estimating
D、Checklist Estimating
72、Self-driving technologies are important for the research and development in the field of().
A、Cloud Computing
B、Digital Finance
C、Artificial Intelligence
D、Intelligent Manufacturing
73、To build a modern logistics system,we should work on the()of its infrastructure,including railways and ports,and promote the integration of cources in the sector.
A、digital transformation
B、new generation of communication technology
C、block-chain technology
D、VR and AR
74、Information security emphasizes the security attributes of information(data)itself.()is not included in the security attributes.
A、Confidentiality
B、Consistency
C、Interity
D、Availability
75、()is enforced in 2021.
A、The Civil Code of the People's Republic of China
B、The Tendering and Bidding Law of the People's Republic of China
C、Government Procurement Law of the People's Republic of China
D、The Personal Information Protection Law of the People's Republic of China
(231012)答案
66、【试题解析】
高级教程第四版P615
动态投资回收期的计算
Pt=(累计净现金流量现值出现正值的年数-1)+上一年累计净现金流量现值的绝对值/出现正值年份净现金流量的现值=(5-1)+9.8/37.2=4+0.26=4.26。慧翔天地
【参考答案】A
67、68、【试题解析】
线性规划问题。假设资源A使用量为X,资源B使用量为Y,则可列出不等式方程组:
10X+4Y≥20
5X+5Y≥15
X≥0,Y≥0
求min{6X+3Y}。
画出可行域,则X=4/3,Y=5/3时,6X+3Y最小,所以选择A和B。
实际上就是取等号,即10X+4Y=20,5X+5Y=15时,解出X和Y的值。
【参考答案】A、B
69、70、【试题解析】
高级教程第四版P629
逐个计算V1分别到V6、V7、V8、V9的最短路径长度。
V1到V6为:2+1+1+6=10;V1-V7为2+1+1+9=13;V1-V8为2+1+1+8=12;V1-V9为2+1+1=4;
因此在给出的4个选项中最远是到V7,从V1到V7的最短路径长度是13。
【参考答案】B、C