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Newly Released Hortonworks Apache-Hadoop-Developer Exam PDF

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Total 108 questions
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Hadoop 2.0 Certification exam for Pig and Hive Developer Questions and Answers

Question 9

You have the following key-value pairs as output from your Map task:

(the, 1)

(fox, 1)

(faster, 1)

(than, 1)

(the, 1)

(dog, 1)

How many keys will be passed to the Reducer’s reduce method?

Options:

A.

Six

B.

Five

C.

Four

D.

Two

E.

One

F.

Three

Question 10

Which one of the following statements is FALSE regarding the communication between DataNodes and a federation of NameNodes in Hadoop 2.0?

Options:

A.

Each DataNode receives commands from one designated master NameNode.

B.

DataNodes send periodic heartbeats to all the NameNodes.

C.

Each DataNode registers with all the NameNodes.

D.

DataNodes send periodic block reports to all the NameNodes.

Question 11

Given the following Hive command:

Which one of the following statements is true?

Options:

A.

The files in the mydata folder are copied to a subfolder of /apps/hlve/warehouse

B.

The files in the mydata folder are moved to a subfolder of /apps/hive/wa re house

C.

The files in the mydata folder are copied into Hive's underlying relational database

D.

The files in the mydata folder do not move from their current location In HDFS

Question 12

Given the following Hive commands:

Which one of the following statements Is true?

Options:

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

Page: 3 / 4
Total 108 questions
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