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Hortonworks HADOOP-PR000007 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Data Ingestion & Ecosystem Integration | 5% | - Workflow orchestration with Oozie - Sqoop and Flume usage basics |
| Apache Pig Development | 40% | - Data transformation, filtering, grouping, and joining - Integration with HCatalog and Hive - Pig Latin syntax, data loading, and storage - User-defined functions (UDFs) and optimization |
| Hadoop Fundamentals & HDFS | 20% | - HDFS file operations, permissions, and data management - Hadoop 2.0 architecture & YARN |
| Apache Hive Development | 35% | - Performance tuning and indexing - HiveQL queries, joins, aggregations, and partitioning - Data types, serialization, and file formats - Hive architecture, metastore, and table management |
Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer) Sample Questions:
Which one of the following classes would a Pig command use to store data in a table defined in
HCatalog?
- A. No special class is needed for a Pig script to store data in an HCatalog table
- B. org.apache.hcatalog.pig.HCatStorer
- C. org.apache.hcatalog.pig.HCatOutputFormat
- D. Pig scripts cannot use an HCatalog table
Correct Answer: B 🗳️
You have user profile records in your OLPT database, that you want to join with web logs you have
already ingested into the Hadoop file system. How will you obtain these user records?
- A. HDFS command
- B. Pig LOAD command
- C. Sqoop import
- D. Ingest with Flume agents
- E. Hive LOAD DATA command
- F. Ingest with Hadoop Streaming
Correct Answer: C 🗳️
Which describes how a client reads a file from HDFS?
- A. The client contacts the NameNode for the block location(s). The NameNode contacts the DataNode
that holds the requested data block. Data is transferred from the DataNode to the NameNode, and then
from the NameNode to the client. - B. The client queries the NameNode for the block location(s). The NameNode returns the block location(s)
to the client. The client reads the data directory off the DataNode(s). - C. The client contacts the NameNode for the block location(s). The NameNode then queries the
DataNodes for block locations. The DataNodes respond to the NameNode, and the NameNode redirects
the client to the DataNode that holds the requested data block(s). The client then reads the data directly
off the DataNode. - D. The client queries all DataNodes in parallel. The DataNode that contains the requested data responds
directly to the client. The client reads the data directly off the DataNode.
Correct Answer: B 🗳️
In a large MapReduce job with m mappers and n reducers, how many distinct copy operations will there
be in the sort/shuffle phase?
- A. m+n (i.e., m plus n)
- B. n
- C. mn (i.e., m to the power of n)
- D. m
- E. mXn (i.e., m multiplied by n)
Correct Answer: E 🗳️
Review the following data and Pig code:
What command to define B would produce the output (M,62,95l02) when invoking the DUMP operator on
B?
- A. B = JOIN A BY (gender = = 'M' AND zip = = '95102');
- B. B= FOREACH A BY (gender = = 'M' AND zip = = '95102');
- C. B = FILTER A BY (zip = = '95102' AND gender = = M");
- D. B= GROUP A BY (zip = = '95102' AND gender = = 'M');
Correct Answer: C 🗳️
Leonard 
Coral 
Berger 
Derrick 
Ferdinand 
Marvin 
Diana 
Archer 
Darcy 
James 
Ulysses 
Herman 
Myrna 
Yves 
Baldwin 
Sally 
Osborn 
Ted 
Bblythe 
