AdminHelpdice Team30 May, 2024Which describes how a client reads a file from HDFS?The client queries the NameNode for the block location(s). The NameNode returns the block location(s) to the client. The client reads the data directory off the DataNode(s).The client queries all DataNodes in parallel. The DataNode that contains the requested data responds directly to the client. The client reads the data directly off the DataNode.The client contacts the NameNode for the block location(s). The NameNode then queries the DataNodes for block locations. The DataNodes respond to the NameNode, and the NameNode redirects the client to the DataNode that holds the requested data block(s). The client then reads the data directly off the DataNode.The client contacts the NameNode for the block location(s). The NameNode contacts the DataNode that holds the requested data block. Data is transferred from the DataNode to the NameNode, and then from the NameNode to the client.Multi- dimensionalCheck 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?...Mon, 10 MarWhich of the following is false about RawComparator?...Mon, 10 MarWhich one of the following is not a main component of HBase?...Mon, 10 MarThe org.apache.hadoop.io.Writable interface declares which two methods?...Mon, 10 MarHow does Hadoop process large volumes of data?...Mon, 10 MarWhich one of the following stores data?...Mon, 10 MarWhat is the default input format?...Mon, 10 MarJob tracker runs on...Mon, 10 MarHow does HDFS ensure the integrity of the stored data?...Mon, 10 MarThe function of secondary namenode...Mon, 10 Mar
