CLOUD COMPUTING

Detailed explanation-1: -Explanation: The MapReduce framework takes care of scheduling tasks, monitoring them and re-executes the failed tasks.

Detailed explanation-2: -During a MapReduce job, Hadoop sends the Map and Reduce tasks to the appropriate servers in the cluster. The framework manages all the details of data-passing such as issuing tasks, verifying task completion, and copying data around the cluster between the nodes.

Detailed explanation-3: -MapReduce is a programming framework that allows us to perform distributed and parallel processing on large data sets in a distributed environment.

Detailed explanation-4: -Expert-Verified Answer. Explanation: The reduce is the type of function which are responsible for consolidate the overall result that are technically produced by the map() function in the system. As, the reduce function basically combine the overall work and then resolve into the final output or result.