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Real Hortonworks Apache-Hadoop-Developer practice exam questions for easy pass!
Last Updated: Sep 12, 2026
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Hortonworks Apache-Hadoop-Developer Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Hadoop Ecosystem Fundamentals | - YARN and Resource Management
|
| Topic 2: Apache Hive | - HiveQL Query Language
|
| Topic 3: Apache Pig | - Pig execution model
|
| Topic 4: Data Processing and Integration | - Hadoop data formats
|
Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer Sample Questions:
Which TWO of the following statements are true regarding Hive? Choose 2 answers
- A. Is a relational database
- B. Useful for data analysts familiar with SQL who need to do ad-hoc queries
- C. Offers real-time queries and row level updates
- D. Allows you to define a structure for your unstructured Big Data
Correct Answer: B,D 🗳️
A combiner reduces:
- A. The number of values across different keys in the iterator supplied to a single reduce method call.
- B. The amount of intermediate data that must be transferred between the mapper and reducer.
- C. The number of input files a mapper must process.
- D. The number of output files a reducer must produce.
Correct Answer: B 🗳️
Explanation: Only visible for itPass4sure members. You can sign-up / login (it's free).
Assuming default settings, which best describes the order of data provided to a reducer's reduce method:
- A. The keys given to a reducer are in sorted order but the values associated with each key are in no predictable order
- B. Both the keys and values passed to a reducer always appear in sorted order.
- C. The keys given to a reducer aren't in a predictable order, but the values associated with those keys always are.
- D. Neither keys nor values are in any predictable order.
Correct Answer: A 🗳️
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You need to move a file titled "weblogs" into HDFS. When you try to copy the file, you can't. You know you have ample space on your DataNodes. Which action should you take to relieve this situation and store more files in HDFS?
- A. Increase the number of disks (or size) for the NameNode.
- B. Increase the block size on your remaining files.
- C. Decrease the block size on all current files in HDFS.
- D. Decrease the block size on your remaining files.
- E. Increase the block size on all current files in HDFS.
- F. Increase the amount of memory for the NameNode.
Correct Answer: D 🗳️
Review the following 'data' file and Pig code.
Which one of the following statements is true?
- A. The output of the dump d command is (M, {(38,95in),(62,95i02)})
- B. The code executes successfully but there is not output because the D relation is empty
- 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 🗳️
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