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Hortonworks HADOOP-PR000007 Exam Syllabus Topics:

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

1. Which two of the following are true about this trivial Pig program' (choose Two)

A) ABC has a schema associated with it
B) Pig assumes the contents of myfile are comma delimited
C) The contents of myfile appear on stdout
D) myfile is read from the user's home directory in HDFS

2. Examine the following Hive statements:

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

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

3. Analyze each scenario below and indentify which best describes the behavior of the default partitioner?

A) The default partitioner computes the hash of the key. Hash values between specific ranges are
associated with different buckets, and each bucket is assigned to a specific reducer.
B) The default partitioner computes the hash of the value and takes the mod of that value with the number
of reducers. The result determines the reducer assigned to process the key-value pair.
C) The default partitioner implements a round-robin strategy, shuffling the key-value pairs to each reducer
in turn. This ensures an event partition of the key space.
D) The default partitioner computes the hash of the key and divides that valule modulo the number of
reducers. The result determines the reducer assigned to process the key-value pair.
E) The default partitioner assigns key-values pairs to reduces based on an internal random number
generator.

4. Examine the following Hive statements:

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

A) The contents of File1 are parsed as comma-delimited rows and stored in a database
B) The file named File1 is moved to to/user/joe/x/
C) Hive reformats File1 into a structure that Hive can access and moves into to/user/joe/x/
D) The contents of File1 are parsed as comma-delimited rows and loaded into /user/joe/x/

5. All keys used for intermediate output from mappers must:

A) Implement a splittable compression algorithm.
B) Be a subclass of FileInputFormat.
C) Override isSplitable.
D) Implement WritableComparable.
E) Implement a comparator for speedy sorting.

Solutions: