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?...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
