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Hortonworks Apache-Hadoop-Developer Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Ingestion | - Import data into Hadoop
|
| Data Transformation with Pig | - Pig Latin programming
|
| Data Processing | - End-to-end Hadoop workflows
|
| Data Analysis with Hive | - Hive query development
|
Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer Sample Questions:
1. What data does a Reducer reduce method process?
A) All data for a given value, regardless of which mapper(s) produced it.
B) All data for a given key, regardless of which mapper(s) produced it.
C) All the data in a single input file.
D) All data produced by a single mapper.
2. Given the following Hive command:
Which one of the following statements is true?
A) The files in the mydata folder are copied to a subfolder of /apps/hlve/warehouse
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 into Hive's underlying relational database
3. Which Hadoop component is responsible for managing the distributed file system metadata?
A) DataNode
B) Metanode
C) NameNode
D) NameSpaceManager
4. For each intermediate key, each reducer task can emit:
A) One final key-value pair per key; no restrictions on the type.
B) As many final key-value pairs as desired. There are no restrictions on the types of those key-value pairs (i.e., they can be heterogeneous).
C) As many final key-value pairs as desired, as long as all the keys have the same type and all the values have the same type.
D) One final key-value pair per value associated with the key; no restrictions on the type.
E) As many final key-value pairs as desired, but they must have the same type as the intermediate key-value pairs.
5. 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 copied to a subfolder of /apps/hive/warehouse
C) The file mydata.txt is moved to a subfolder of /apps/hive/warehouse
D) The file mydata.txt is copied into Hive's underlying relational database 0.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: C | Question # 3 Answer: C | Question # 4 Answer: C | Question # 5 Answer: B |
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