What is a “map wave” in Hadoop in the context of parallel data processing?Group of answer choicesIt is the number of map tasks in a given jobIt is the number of map tasks that execute concurrently in parallelIt is the number of cores in clusterIt is the number of map tasks that will execute longer than the other map tasks

Which programming paradigm is used in MapReduce?Question 27Answera.Procedural programmingb.Object-oriented programmingc.Imperative programmingd.Functional programming

In MapReduce, what is the role of the Mapper?Question 1Answera.Data filteringb.Data sortingc. Data shufflingd.Data processing

What is MapReduce in the context of Big Data processing?Question 14Answera.A data visualization toolb.A data processing modelc.A data storage systemd.A data security protocol

Which component of Hadoop is responsible for job scheduling andresource management?Question 2Answera. HDFSb.MapReducec.YARNd. Pig

Which of the following about the MapReduce framework is/are correct?Question 7Select one or more:Select one or more:a.The MapReduce framework must be able to handle concurrent transactions, which are common in a distributed computing environment.b.The key/value pairs generated by map workers are directly sent to reduce workers as input.c.A reduce worker can only start a reduce task after all map workers finish their map tasks.d.A reduce worker may start a reduce task while some map workers are still running their map tasks.e.In the MapReduce framework, developers need to handle load balancing by writing code in the map and reduce functions.