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Hortonworks HADOOP-PR000007 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Hadoop Ecosystem Integration | - HDFS interaction - MapReduce basics - Data ingestion and ETL workflows |
| Topic 2: Data Warehousing with Hive | - Advanced Hive features
|
| Topic 3: Data Processing with Pig | - Pig Latin fundamentals
|
Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer) Sample Questions:
Examine the following Hive statements:
Assuming the statements above execute successfully, which one of the following statements is true?
- A. Each reducer generates a file sorted by age
- B. The output is guaranteed to be a single file with all the data sorted by age
- C. The SORT BY command causes only one reducer to be used
- D. The output of each reducer is only the age column
Correct Answer: A 🗳️
Given the following Hive command:
Which one of the following statements is true?
- A. The files in the mydata folder are copied into Hive's underlying relational database
- B. The files in the mydata folder are moved to a subfolder of /apps/hive/wa re house
- C. The files in the mydata folder do not move from their current location In HDFS
- D. The files in the mydata folder are copied to a subfolder of /apps/hlve/warehouse
Correct Answer: C 🗳️
Review the following 'data' file and Pig code.
Which one of the following statements is true?
- A. The code executes successfully but there is not output because the D relation is empty
- 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 Output Of the DUMP D command IS (M,{(M,62.95102),(M,38,95111)})
Correct Answer: D 🗳️
Given the following Hive commands:
Which one of the following statements Is true?
- A. The file mydata.txt does not move from Its current location in HDFS
- B. The file mydata.txt is moved to a subfolder of /apps/hive/warehouse
- C. The file mydata.txt is copied into Hive's underlying relational database 0.
- D. The file mydata.txt is copied to a subfolder of /apps/hive/warehouse
Correct Answer: D 🗳️
Indentify which best defines a SequenceFile?
- A. A SequenceFile contains a binary encoding of an arbitrary number of WritableComparable objects, in
sorted order. - B. A SequenceFile contains a binary encoding of an arbitrary number of heterogeneous Writable objects
- 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 key-value pairs. Each key must be
the same type. Each value must be the same type.
Correct Answer: D 🗳️
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