Explanation:The Mapper outputs are sorted and then partitioned per Reducer. 2. Point out the correct statement :
A. Mapper maps input key/value pairs to a set of intermediate key/value pairs
B. Applications typically implement the Mapper and Reducer interfaces to provide the map and reduce methods
C. Mapper and Reducer interfaces form the core of the job
D. None of the mentioned
Answer:A
Explanation:The Mapper outputs are sorted and then partitioned per Reducer. 2. Point out the correct statement :
A. Mapper maps input key/value pairs to a set of intermediate key/value pairs B. Applications typically implement the Mapper and Reducer interfaces to provide the map and reduce methods C. Mapper and Reducer interfaces form the core of the job D. None of the mentioned
Explanation:The transformed intermediate records do not need to be of the same type as the input records. 3. The Hadoop MapReduce framework spawns one map task for each __________ generated by the InputFormat for the job.