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

1. Your client application submits a MapReduce job to your Hadoop cluster. Identify the Hadoop daemon on which the Hadoop framework will look for an available slot schedule a MapReduce operation.

A) DataNode
B) TaskTracker
C) Secondary NameNode
D) NameNode
E) JobTracker

2. You need to move a file titled "weblogs" into HDFS. When you try to copy the file, you can't. You know you have ample space on your DataNodes. Which action should you take to relieve this situation and store more files in HDFS?

A) Increase the amount of memory for the NameNode.
B) Increase the block size on your remaining files.
C) Increase the block size on all current files in HDFS.
D) Decrease the block size on your remaining files.
E) Decrease the block size on all current files in HDFS.
F) Increase the number of disks (or size) for the NameNode.

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

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

4. 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 do not move from their current location In HDFS
C) The files in the mydata folder are copied into Hive's underlying relational database
D) The files in the mydata folder are moved to a subfolder of /apps/hive/wa re house

5. Which Two of the following statements are true about hdfs? Choose 2 answers

A) HDFS works best when storing a large number of relatively small files
B) An HDFS file that is larger than dfs.block.size is split into blocks
C) Blocks are replicated to multiple datanodes
D) Block sizes for all files must be the same size

Solutions: