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Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer) Sample Questions:

1. Which TWO of the following statements are true regarding Hive? Choose 2 answers

A) Is a relational database
B) Allows you to define a structure for your unstructured Big Data
C) Useful for data analysts familiar with SQL who need to do ad-hoc queries
D) Offers real-time queries and row level updates

2. You want to run Hadoop jobs on your development workstation for testing before you submit them to your
production cluster. Which mode of operation in Hadoop allows you to most closely simulate a production
cluster while using a single machine?

A) Run all the nodes in your production cluster as virtual machines on your development workstation.
B) Run the hadoop command with the -jt local and the -fs file:///options.
C) Run simldooop, the Apache open-source software for simulating Hadoop clusters.
D) Run the DataNode, TaskTracker, NameNode and JobTracker daemons on a single machine.

3. Given the following Hive commands:

Which one of the following statements Is true?

A) The file mydata.txt is copied to a subfolder of /apps/hive/warehouse
B) The file mydata.txt is moved to a subfolder of /apps/hive/warehouse
C) The file mydata.txt is copied into Hive's underlying relational database 0.
D) The file mydata.txt does not move from Its current location in HDFS

4. Which describes how a client reads a file from HDFS?

A) 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.
B) 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.
C) 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.
D) 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).

5. You want to Ingest log files Into HDFS, which tool would you use?

A) Flume
B) HCatalog
C) Sqoop
D) Ambari

Solutions: