Can a custom type for data Map-Reduce processing be implemented?
A. No, Hadoop does not provide techniques for custom datatypes.
B. Yes, but only for mappers.
C. Yes, custom data types can be implemented as long as they implement writable interface.
D. Yes, but only for reducers.
Answer:C
Can a custom type for data Map-Reduce processing be implemented?
A. No, Hadoop does not provide techniques for custom datatypes. B. Yes, but only for mappers. C. Yes, custom data types can be implemented as long as they implement writable interface. D. Yes, but only for reducers.