Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer : Apache-Hadoop-Developer

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Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer Sample Questions:

1. Which one of the following statements regarding the components of YARN is FALSE?

A) The ResourceManager is responsible for scheduling and allocating resources
B) A Container executes a specific task as assigned by the ApplicationMaster
C) The ResourceManager monitors and restarts any failed Containers
D) A client application submits a YARW job to the ResourceManager

2. Which one of the following statements describes the relationship between the NodeManager and the ApplicationMaster?

A) The ApplicationMaster starts the NodeManager outside of a Container
B) The NodeManager requests resources from the ApplicationMaster
C) The NodeManager creates an instance of the ApplicationMaster
D) The ApplicationMaster starts the NodeManager in a Container

3. Which Hadoop component is responsible for managing the distributed file system metadata?

A) Metanode
B) NameNode
C) NameSpaceManager
D) DataNode

4. Which one of the following statements is false about HCatalog?

A) Provides a shared schema mechanism
B) Designed to be used by other programs such as Pig, Hive and MapReduce
C) Stores HDFS data in a database for performing SQL-like ad-hoc queries
D) Exists as a subproject of Hive

5. You have written a Mapper which invokes the following five calls to the OutputColletor.collect method:
output.collect (new Text ("Apple"), new Text ("Red") ) ;
output.collect (new Text ("Banana"), new Text ("Yellow") ) ;
output.collect (new Text ("Apple"), new Text ("Yellow") ) ;
output.collect (new Text ("Cherry"), new Text ("Red") ) ;
output.collect (new Text ("Apple"), new Text ("Green") ) ;
How many times will the Reducer's reduce method be invoked?

A) 0
B) 1
C) 5
D) 3
E) 6

Solutions: