针对每行数据内容为"Timestamp Url"的数据文件,在用JobConf对象conf设置conf.setInputFormat(WhichInputFormat.class)来读取这个文件时,WhichInputFormat应该为以下的
(A)TextInputFormat
(B)KeyValueTextInputFormat
(C)SequenceFileInputFormat
(D)NLineInputFormat
参考答案
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(A)TextInputFormat
(B)KeyValueTextInputFormat
(C)SequenceFileInputFormat
(D)NLineInputFormat