最新的Hortonworks Data Platform Certified Developer - HDPCD免費考試真題

A. Into in-memory buffers that spill over to the local file system of the TaskTracker node running the Mapper.

B. Into in-memory buffers on the TaskTracker node running the Reducer that spill over and are written into HDFS.

C. Intermediate data in streamed across the network from Mapper to the Reduce and is never written to disk.

D. Into in-memory buffers on the TaskTracker node running the Mapper that spill over and are written into HDFS.

E. Into in-memory buffers that spill over to the local file system (outside HDFS) of the TaskTracker node running the Reducer

A. NameSpaceManager

B. DataNode

C. NameNode

D. Metanode

A. The Output Of the DUMP D command IS (M,{(M,62.95102),(M,38,95111)})

B. The output of the dump d command is (M, {(38,95in),(62,95i02)})

C. The code does not execute successfully because D is not a valid relation

D. The code executes successfully but there is not output because the D relation is empty

A. As soon as at least one mapper has finished processing its input split.

B. Not until all mappers have finished processing all records.

C. It depends on the InputFormat used for the job.

D. As soon as a mapper has emitted at least one record.

A. B= GROUP A BY (zip = = '95102' AND gender = = 'M');

B. B = FILTER A BY (zip = = '95102' AND gender = = M");

C. B= FOREACH A BY (gender = = 'M' AND zip = = '95102');

D. B = JOIN A BY (gender = = 'M' AND zip = = '95102');

A. A SequenceFile contains a binary encoding of an arbitrary number of heterogeneous writable objects.

B. A SequenceFile contains a binary encoding of an arbitrary number key-value pairs. Each key must be the same type. Each value must be same type.

C. A SequenceFile contains a binary encoding of an arbitrary number of homogeneous writable objects.

D. A SequenceFile contains a binary encoding of an arbitrary number of WritableComparable objects, in sorted order.