Explanation:A unit test is useful because you can make assertions to verify that the values of the deserialized object are the same as the original values. 6. The ____________ class extends and implements several Hadoop-supplied interfaces.
A. AvroReducer
B. Mapper
C. AvroMapper
D. None of the mentioned
Answer:A
Explanation:A unit test is useful because you can make assertions to verify that the values of the deserialized object are the same as the original values. 6. The ____________ class extends and implements several Hadoop-supplied interfaces.
A. AvroReducer B. Mapper C. AvroMapper D. None of the mentioned
Explanation:AvroMapper is used to provide the ability to collect or map data. 7. ____________ class accepts the values that the ModelCountMapper object has collected.