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Hortonworks HADOOP-PR000007 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Hadoop Ecosystem Integration | - MapReduce basics - Data ingestion and ETL workflows - HDFS interaction |
| Data Processing with Pig | - Pig Latin fundamentals
|
| Data Warehousing with Hive | - Advanced Hive features
|
Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer) Sample Questions:
Which one of the following statements describes a Pig bag. tuple, and map, respectively?
- A. Ordered collection of maps, ordered collection of bags, and unordered set of key/value pairs
- B. Unordered collection of maps, ordered collection of tuples, ordered set of key/value pairs
- C. Ordered set of fields, ordered collection of tuples, ordered collection of maps
- D. Unordered collection of tuples, ordered set of fields, set of key value pairs
Which one of the following is NOT a valid Oozie action?
- A. pig
- B. hive
- C. mrunit
- D. mapreduce
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 the same Writable object if the next value is the same as the previous value, or
a new Writable object otherwise. - B. It returns a reference to a different Writable object time.
- C. It returns a reference to a Writable object. The API leaves unspecified whether this is a reused object
or a new object. - D. It returns a reference to the same Writable object each time, but populated with different data.
- E. It returns a reference to a Writable object from an object pool.
You have the following key-value pairs as output from your Map task:
- A. One
- B. Two
- C. Five
- D. Six
- E. Four
- F. Three
Given the following Hive command:
INSERT OVERWRITE TABLE mytable SELECT * FROM myothertable;
Which one of the following statements is true?
- A. A new table named mytable is created, and the contents of myothertable are copied into mytable
- B. The statement is not a valid Hive command
- C. The contents of myothertable are appended to mytable
- D. Any existing data in mytable will be overwritten
