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Hortonworks Apache-Hadoop-Developer Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Apache Hive | - HiveQL Query Language
|
| Topic 2: Apache Pig | - Pig Latin Programming
|
| Topic 3: Hadoop Ecosystem Fundamentals | - YARN and Resource Management
|
| Topic 4: Data Processing and Integration | - Data ingestion and ETL workflows
|
Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer Sample Questions:
1. Which HDFS command displays the contents of the file x in the user's HDFS home directory?
A) hadoop fs -Is x
B) hadoop fs -cat x
C) hdfs fs -get x
D) hadoop fs -cp x
2. Examine the following Hive statements:
Assuming the statements above execute successfully, which one of the following statements is true?
A) The contents of File1 are parsed as comma-delimited rows and loaded into /user/joe/x/
B) The contents of File1 are parsed as comma-delimited rows and stored in a database
C) Hive reformats File1 into a structure that Hive can access and moves into to/user/joe/x/
D) The file named File1 is moved to to/user/joe/x/
3. Which one of the following statements describes the relationship between the ResourceManager and the ApplicationMaster?
A) The ApplicationMaster requests resources from the ResourceManager
B) The ApplicationMaster starts an instance of the ResourceManager within each Container
C) The ApplicationMaster starts a single instance of the ResourceManager
D) The ResourceManager monitors and restarts any failed Containers of the ApplicationMaster
4. A combiner reduces:
A) The number of output files a reducer must produce.
B) The number of input files a mapper must process.
C) The number of values across different keys in the iterator supplied to a single reduce method call.
D) The amount of intermediate data that must be transferred between the mapper and reducer.
5. Examine the following Hive statements:
Assuming the statements above execute successfully, which one of the following statements is true?
A) The output is guaranteed to be a single file with all the data sorted by age
B) The output of each reducer is only the age column
C) The SORT BY command causes only one reducer to be used
D) Each reducer generates a file sorted by age
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: D | Question # 3 Answer: A | Question # 4 Answer: D | Question # 5 Answer: D |
