Explanation:If a combine function is used then it is the same form as the reduce function, except its output types are the intermediate key and value types (K2 and V2), so they can feed the reduce function. 6. An ___________ is responsible for creating the input splits, and dividing them into records.
A. TextOutputFormat
B. TextInputFormat
C. OutputInputFormat
D. InputFormat
Answer:A
Explanation:If a combine function is used then it is the same form as the reduce function, except its output types are the intermediate key and value types (K2 and V2), so they can feed the reduce function. 6. An ___________ is responsible for creating the input splits, and dividing them into records.
A. TextOutputFormat B. TextInputFormat C. OutputInputFormat D. InputFormat
Explanation:As a MapReduce application writer, you don’t need to deal with InputSplits directly, as they are created by an InputFormat. 7. ______________ is another implementation of the MapRunnable interface that runs mappers concurrently in a configurable number of threads.