单项选择题
Which OSI layer does a bridge operate at
A.the Physical Layer
B.the Network Layer
C.the Transport Layer
D.the Data Link Layer
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单项选择题
You are performing two sums: the first is a sum of two scalar variables and the second is a matrix sum of a pair of two- dimensional arrays-size 1000 by 1000. What speedup is achieved when the calculations are performed on size 1000 processors
A.50
B.100
C.999
D.none of the above
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单项选择题
若有一个计算类型的程序,它的输入只有一个X,其范围是[-1.0,1.0],现从输入的 角度考虑设计一组测试,该程序的测试用例为-1.001,-1.0,1.0,1.001,设计这组测试用例 的方法是
A.逻辑覆盖
B.等价类划分
C.边界值分析
D.错误推测
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