Explanation:Writable interface need to be implemented for key classes. 7. Key classes have to implement the __________ interface to facilitate sorting by the framework.
A. Writable
B. Comparable
C. WritableComparable
D. None of the mentioned
Answer:A
Explanation:Writable interface need to be implemented for key classes. 7. Key classes have to implement the __________ interface to facilitate sorting by the framework.
A. Writable B. Comparable C. WritableComparable D. None of the mentioned
Explanation:Input and Output types of a MapReduce job:(input) -> map -> -> combine -> -> reduce -> (output). 8. The ________ option allows applications to add jars to the classpaths of the maps and reduces.