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

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Hortonworks Apache-Hadoop-Developer Exam Syllabus Topics:

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

1. You need to create a job that does frequency analysis on input data. You will do this by writing a Mapper that uses TextInputFormat and splits each value (a line of text from an input file) into individual characters. For each one of these characters, you will emit the character as a key and an InputWritable as the value. As this will produce proportionally more intermediate data than input data, which two resources should you expect to be bottlenecks?

A) Processor and network I/O
B) Processor and RAM
C) Processor and disk I/O
D) Disk I/O and network I/O

2. To use a lava user-defined function (UDF) with Pig what must you do?

A) Pass arguments to the constructor of UDFs implementation class
B) Put the JAR file into the user's home folder in HDFS
C) Define an alias to shorten the function name
D) Register the JAR file containing the UDF

3. On a cluster running MapReduce v1 (MRv1), a TaskTracker heartbeats into the JobTracker on your cluster, and alerts the JobTracker it has an open map task slot.
What determines how the JobTracker assigns each map task to a TaskTracker?

A) The amount of RAM installed on the TaskTracker node.
B) The number and speed of CPU cores on the TaskTracker node.
C) The amount of free disk space on the TaskTracker node.
D) The location of the InsputSplit to be processed in relation to the location of the node.
E) The average system load on the TaskTracker node over the past fifteen (15) minutes.

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

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

5. Table metadata in Hive is:

A) Stored in the Metastore.
B) Stored in ZooKeeper.
C) Stored along with the data in HDFS.
D) Stored as metadata on the NameNode.

Solutions: