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Hortonworks HADOOP-PR000007 Exam Syllabus Topics:

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

Question 1

Which one of the following statements describes a Pig bag. tuple, and map, respectively?

A. Unordered collection of maps, ordered collection of tuples, ordered set of key/value pairs
B. Ordered collection of maps, ordered collection of bags, and unordered set of key/value pairs
C. Unordered collection of tuples, ordered set of fields, set of key value pairs
D. Ordered set of fields, ordered collection of tuples, ordered collection of maps

Question 2

What does the following WebHDFS command do?
Curl -1 -L "http://host:port/webhdfs/v1/foo/bar?op=OPEN"

A. Delete a directory /foo/bar
B. Make a directory /foo/bar
C. Read a file /foo/bar
D. List a directory /foo

Question 3

You want to understand more about how users browse your public website, such as which pages they
visit prior to placing an order. You have a farm of 200 web servers hosting your website. How will you
gather this data for your analysis?

A. Sample the weblogs from the web servers, copying them into Hadoop using curl.
B. Ingest the server web logs into HDFS using Flume.
C. Write a MapReduce job, with the web servers for mappers, and the Hadoop cluster nodes for reduces.
D. Channel these clickstreams inot Hadoop using Hadoop Streaming.
E. Import all users' clicks from your OLTP databases into Hadoop, using Sqoop.

Question 4

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

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

Question 5

Examine the following Hive statements:

Assuming the statements above execute successfully, which one of the following statements is true?

A. The SORT BY command causes only one reducer to be used
B. The output is guaranteed to be a single file with all the data sorted by age
C. The output of each reducer is only the age column
D. Each reducer generates a file sorted by age

Solutions: