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Exam Code: HDPCD
Exam Name: Hortonworks Data Platform Certified Developer
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HDPCD Real Dumps Total Q&A: 110 Questions and Answers
Last Update: 2016-09-27

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NO.1 For each intermediate key, each reducer task can emit:
A. As many final key-value pairs as desired, as long as all the keys have the same type and all the
values have the same type.
B. As many final key-value pairs as desired. There are no restrictions on the types of those key-value
pairs (i.e., they can be heterogeneous).
C. One final key-value pair per value associated with the key; no restrictions on the type.
D. One final key-value pair per key; no restrictions on the type.
E. As many final key-value pairs as desired, but they must have the same type as the intermediate
key-value pairs.
Answer: A

HDPCD PDF VCE   
Reference: Hadoop Map-Reduce Tutorial; Yahoo! Hadoop Tutorial, Module 4: MapReduce

NO.2 Which best describes how TextInputFormat processes input files and line breaks?
A. Input file splits may cross line breaks. A line that crosses file splits is read by the RecordReaders of
both splits containing the broken line.
B. Input file splits may cross line breaks. A line that crosses file splits is read by the RecordReader of
the split that contains the end of the broken line.
C. Input file splits may cross line breaks. A line that crosses file splits is read by the RecordReader of
the split that contains the beginning of the broken line.
D. The input file is split exactly at the line breaks, so each RecordReader will read a series of complete
lines.
E. Input file splits may cross line breaks. A line that crosses file splits is ignored.
Answer: C

HDPCD original questions   
Reference: How Map and Reduce operations are actually carried out