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Hortonworks Apache-Hadoop-Developer Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Apache Hive | - Hive architecture
|
| Data Processing and Integration | - Hadoop data formats
|
| Apache Pig | - Pig Latin Programming
|
| Hadoop Ecosystem Fundamentals | - YARN and Resource Management
|
Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer Sample Questions:
Given the following Pig commands:
Which one of the following statements is true?
- A. The severe relation is not valid
- B. The $1 variable represents the first column of data in 'my.log'
- C. The $1 variable represents the second column of data in 'my.log'
- D. The grouped relation is not valid
Correct Answer: C 🗳️
In a MapReduce job, the reducer receives all values associated with same key. Which statement best describes the ordering of these values?
- A. The values are in sorted order.
- B. The values are arbitrary ordered, but multiple runs of the same MapReduce job will always have the same ordering.
- C. The values are arbitrarily ordered, and the ordering may vary from run to run of the same MapReduce job.
- D. Since the values come from mapper outputs, the reducers will receive contiguous sections of sorted values.
Correct Answer: C 🗳️
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Identify the tool best suited to import a portion of a relational database every day as files into HDFS, and generate Java classes to interact with that imported data?
- A. Hue
- B. Sqoop
- C. Oozie
- D. Hive
- E. fuse-dfs
- F. Pig
- G. Flume
Correct Answer: B 🗳️
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Assuming the following Hive query executes successfully:
Which one of the following statements describes the result set?
- A. A bigram of the top 80 sentences that contain the substring "you are" in the lines column of the input data A1 table.
- B. A trigram of the top 80 sentences that contain "you are" followed by a null space in the lines column of the inputdata table.
- C. An 80-value ngram of sentences that contain the words "you" or "are" in the lines column of the inputdata table.
- D. A frequency distribution of the top 80 words that follow the subsequence "you are" in the lines column of the inputdata table.
Correct Answer: D 🗳️
You have just executed a MapReduce job. Where is intermediate data written to after being emitted from the Mapper's map method?
- 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 Mapper that spill over and are written into HDFS.
- C. Into in-memory buffers on the TaskTracker node running the Reducer that spill over and are written into HDFS.
- D. Intermediate data in streamed across the network from Mapper to the Reduce and is never written to disk.
- E. Into in-memory buffers that spill over to the local file system (outside HDFS) of the TaskTracker node running the Reducer
Correct Answer: A 🗳️
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Viewing questions 1-5 out of 110 questions.
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