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

1. What are the TWO main components of the YARN ResourceManager process? Choose 2 answers

A) Scheduler
B) Applications Manager
C) Task Tracker
D) Job Tracker

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

3. Review the following data and Pig code:

What command to define B would produce the output (M,62,95l02) when invoking the DUMP operator on B?

A) B = JOIN A BY (gender = = 'M' AND zip = = '95102');
B) B= FOREACH A BY (gender = = 'M' AND zip = = '95102');
C) B= GROUP A BY (zip = = '95102' AND gender = = 'M');
D) B = FILTER A BY (zip = = '95102' AND gender = = M");

4. What does Pig provide to the overall Hadoop solution?

A) Legacy language Integration with MapReduce framework
B) C++ interface to MapReduce and data warehouse infrastructure
C) Simple scripting language for writing MapReduce programs
D) Database table and storage management services

5. A client application creates an HDFS file named foo.txt with a replication factor of 3. Identify which best describes the file access rules in HDFS if the file has a single block that is stored on data nodes A, B and C?

A) The file can be accessed if at least one of the data nodes storing the file is available.
B) The file will be marked as corrupted if data node B fails during the creation of the file.
C) Each data node stores a copy of the file in the local file system with the same name as the HDFS file.
D) Each data node locks the local file to prohibit concurrent readers and writers of the file.

Solutions: