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单项选择题
A.val dm:Matrix=Matrices.dense(3,2,Array(0.0,3.0,0.0,2.0,0.0,6.0))
B.val dm:Matrix=Matrices.sparse(3,2,Array(0.0,2.0,3.0,0.0,0.0,6.0))
C.val sm:Matrix=Matrices.sparse(3,2,Array(0,1,2),Array(1,0,1),Array(2,3,6))
D.val sm:Matrix=Matrices.dense(3,2,Array(0,1,2),Array(1,0,1),Array(2,3,6))
单项选择题
A.val pos=LabeledPoint(1.0,Vectors.dense(1.0,0.0,3.0))
B.val pos=LabeledPoint(1.0,(1.0,0.0,3.0))
C.val pos=LabeledPoint(Vectors.dense(1.0,0.0,3.0),1.0)
D.val pos=LabeledPoint((1.0,0.0,3.0),1.0)
单项选择题
A.Array(1,2,3,4,5,6,7,8,9,10)
B.Array(1,3,5,7,9)
C.Array(2,4,6,8,10)
D.Array(1,10)
单项选择题
A.Array((1,2),(3,10))
B.Array((9,“Tom”),(11,“Lee”))
C.Array((“Tom”,9),(“Lee”,11))
D.Array((“Tom”,2,7),(“Lee”,5,6))
单项选择题
A.regionserver
B.spark-env.sh
C.spark-defaults.conf
D.slaves
单项选择题
A.Pig可以使用一个类SQL的语言,降低了学习成本
B.Pig的语言编辑器可以把类SQL语言转换为一系列经过优化处理的MapReduce运算
C.目前Pig主要由开源社区维护
D.Pig是一种数据流语言