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HDPCD Exam Questions & Answers

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HDPCD Exam Questions & Answers

Vendor: Hortonworks

Certifications: Hortonworks Certifications

Exam Code: HDPCD

Exam Name: Hortonworks Data Platform Certified Developer

Updated: Dec 16, 2024

Q&As: 60

Exam retired

PDF Only: $49.99 VCE Only: $55.99 PDF + VCE: $65.99

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Free HDPCD Exam Questions in PDF Format

Hortonworks_pass4itsure_HDPCD_by_Lee_gh_94.pdf Download
Hortonworks_pass4itsure_HDPCD_by_sidd_101.pdf Download
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Hortonworks_pass4itsure_HDPCD_by_examking_101.pdf Download

HDPCD Online Practice Questions and Answers

Questions 1

In the reducer, the MapReduce API provides you with an iterator over Writable values. What does calling the next () method return?

A. It returns a reference to a different Writable object time.

B. It returns a reference to a Writable object from an object pool.

C. It returns a reference to the same Writable object each time, but populated with different data.

D. It returns a reference to a Writable object. The API leaves unspecified whether this is a reused object or a new object.

E. It returns a reference to the same Writable object if the next value is the same as the previous value, or a new Writable object otherwise.

Show Answer
Questions 2

Which Two of the following statements are true about hdfs? Choose 2 answers

A. An HDFS file that is larger than dfs.block.size is split into blocks

B. Blocks are replicated to multiple datanodes

C. HDFS works best when storing a large number of relatively small files

D. Block sizes for all files must be the same size

Show Answer
Questions 3

For each intermediate key, each reducer task can emit:

A. 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).

B. As many final key-value pairs as desired, but they must have the same type as the intermediate key-value pairs.

C. 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.

D. One final key-value pair per value associated with the key; no restrictions on the type.

E. One final key-value pair per key; no restrictions on the type.

Show Answer More Questions

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