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Hortonworks Apache-Hadoop-Developer Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Data Transformation with Pig | - Pig Latin programming
|
| Topic 2: Data Ingestion | - Import data into Hadoop
|
| Topic 3: Data Processing | - End-to-end Hadoop workflows
|
| Topic 4: Data Analysis with Hive | - Hive query development
|
Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer Sample Questions:
For each input key-value pair, mappers can emit:
- A. As many intermediate key-value pairs as designed, but they cannot be of the same type as the input key-value pair.
- B. As many intermediate key-value pairs as designed, as long as all the keys have the same types and all the values have the same type.
- C. As many intermediate key-value pairs as designed. There are no restrictions on the types of those key-value pairs (i.e., they can be heterogeneous).
- D. One intermediate key-value pair, of a different type.
- E. One intermediate key-value pair, but of the same type.
Correct Answer: B 🗳️
Explanation: Only visible for PassExamDumps members. You can sign-up / login (it's free).
All keys used for intermediate output from mappers must:
- A. Override isSplitable.
- B. Implement a comparator for speedy sorting.
- C. Implement a splittable compression algorithm.
- D. Implement WritableComparable.
- E. Be a subclass of FileInputFormat.
Correct Answer: D 🗳️
Explanation: Only visible for PassExamDumps 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 aren't in a predictable order, but the values associated with those keys always are.
- B. Neither keys nor values are in any predictable order.
- C. The keys given to a reducer are in sorted order but the values associated with each key are in no predictable order
- D. Both the keys and values passed to a reducer always appear in sorted order.
Correct Answer: C 🗳️
Explanation: Only visible for PassExamDumps members. You can sign-up / login (it's free).
Indentify the utility that allows you to create and run MapReduce jobs with any executable
or script as the mapper and/or the reducer?
- A. Hadoop Streaming
- B. Oozie
- C. mapred
- D. Flume
- E. Sqoop
Correct Answer: A 🗳️
Explanation: Only visible for PassExamDumps members. You can sign-up / login (it's free).
Which HDFS command uploads a local file X into an existing HDFS directory Y?
- A. hadoop scp X Y
- B. hadoop fs -localPut X Y
- C. hadoop fs -get X Y
- D. hadoop fs-put X Y
Correct Answer: D 🗳️
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