AdminHelpdice Team30 May, 2024In a word count query using MapReduce, what does the map function do?It sorts the words alphabetically and returns a list of the most frequently used words.It returns a list with each document as a key and the number of words in it as the value.The master JobTracker sends map and reduce functions to the same machines or nodes in a cluster.It indexes the data to list all the words occurring in itIt tracks data across multiple tables and clusters in HadoopCheck AnswerRelated MCQ's In order to apply a combiner, what is one property that has to be satisfied by the values emitted from the mapper?...Tue, 29 JulKeys from the output of shuffle and sort implement which of the following interface?...Tue, 29 JulWhich demon is responsible for replication of data in Hadoop?...Tue, 29 JulWhich of the following is false about RawComparator?...Tue, 29 JulWhich one of the following is not a main component of HBase?...Tue, 29 JulWhich one of the following statements is false regarding the Distributed Cache?...Tue, 29 JulWhich one of the following statements is true regarding <key,value> pairs of a MapReduce job?...Tue, 29 JulThe org.apache.hadoop.io.Writable interface declares which two methods?...Tue, 29 JulWhich of the following components retrieves the input splits directly from HDFS to determine the number of map task...Tue, 29 JulWhich of the following are among the duties of the Data Nodes in HDFS?...Tue, 29 Jul
