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

1. Which of the following tool was designed to import data from a relational database into HDFS?

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

2. A NameNode in Hadoop 2.0 manages ______________.

A) No namespaces
B) An arbitrary number of namespaces
C) Two namespaces: an active namespace and a backup namespace
D) A single namespace

3. Which two of the following statements are true about Pig's approach toward data? Choose 2 answers

A) Accepts only data that is defined by metadata tables stored in a database
B) Accepts tab-delimited text data only
C) Accepts data whether it has metadata or not
D) Accepts only data that has a key/value pair structure
E) Accepts any data: structured or unstructured

4. Which process describes the lifecycle of a Mapper?

A) The JobTracker spawns a new Mapper to process all records in a single file.
B) The TaskTracker spawns a new Mapper to process each key-value pair.
C) The JobTracker calls the TaskTracker's configure () method, then its map () method and finally its close () method.
D) The TaskTracker spawns a new Mapper to process all records in a single input split.

5. Assuming the following Hive query executes successfully:

Which one of the following statements describes the result set?

A) A frequency distribution of the top 80 words that follow the subsequence "you are" in the lines column
of the inputdata table.
B) An 80-value ngram of sentences that contain the words "you" or "are" in the lines column of the
inputdata table.
C) A trigram of the top 80 sentences that contain "you are" followed by a null space in the lines column of
the inputdata table.
D) A bigram of the top 80 sentences that contain the substring "you are" in the lines column of the input
data A1 table.

Solutions: