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Hortonworks Apache-Hadoop-Developer Exam Syllabus Topics:

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

1. For each intermediate key, each reducer task can emit:

A) As many final key-value pairs as desired. There are no restrictions on the types of those key-value pairs (i.e., they can be heterogeneous).
B) As many final key-value pairs as desired, but they must have the same type as the intermediate key-value pairs.
C) One final key-value pair per key; no restrictions on the type.
D) One final key-value pair per value associated with the key; no restrictions on the type.
E) As many final key-value pairs as desired, as long as all the keys have the same type and all the values have the same type.

2. For each input key-value pair, mappers can emit:

A) As many intermediate key-value pairs as designed, as long as all the keys have the same types and all the values have the same type.
B) As many intermediate key-value pairs as designed, but they cannot be of the same type as the input key-value pair.
C) As many intermediate key-value pairs as designed. There are no restrictions on the types of those key-value pairs (i.e., they can be heterogeneous).
D) One intermediate key-value pair, but of the same type.
E) One intermediate key-value pair, of a different type.

3. What does the following command do?
register '/piggyban):/pig-files.jar';

A) Invokes the user-defined functions contained in the jar file
B) Assigns a name to a user-defined function or streaming command
C) Specifies the location of the JAR file containing the user-defined functions
D) Transforms Pig user-defined functions into a format that Hive can accept

4. Which one of the following statements regarding the components of YARN is FALSE?

A) A Container executes a specific task as assigned by the ApplicationMaster
B) The ResourceManager is responsible for scheduling and allocating resources
C) The ResourceManager monitors and restarts any failed Containers
D) A client application submits a YARW job to the ResourceManager

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

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

Solutions: