a) DataNode b) NameNode c) ActionNode d) None of the mentioned Answer: b Explanation: When the HDFS ...
View Question_________ stores its metadata on multiple disks that typically include a non-local file server.
a) DataNode b) NameNode c) ActionNode d) None of the mentioned Answer: b Explanation: HDFS tolerates failures of storage servers (called DataNodes) and ...
View QuestionHDFS, by default, replicates each data block _____ times on different nodes and on at least ____ racks.
a) 3, 2 b) 1, 2 c) 2, 3 d) All of the mentioned Answer: a Explanation: ...
View QuestionAutomatic restart and ____________ of the NameNode software to another machine is not supported.
a) failover b) end c) scalability d) all of the mentioned Answer: a Explanation: If the NameNode machine fails, manual intervention is necessary.
View Question__________ support storing a copy of data at a particular instant of time.
a) Data Image b) Datanots c) Snapshots d) All of the mentioned Answer: c Explanation: One usage ...
View QuestionPoint out the wrong statement.
a) HDFS is designed to support small files only b) Any update to either the FsImage or EditLog ...
View QuestionThe ____________ and the EditLog are central data structures of HDFS.
a) DsImage b) FsImage c) FsImages d) All of the mentioned Answer: b Explanation: A corruption of ...
View QuestionThe ___________ machine is a single point of failure for an HDFS cluster.
a) DataNode b) NameNode c) ActionNode d) All of the mentioned Answer: b Explanation: If the NameNode ...
View QuestionPoint out the correct statement.
a) The HDFS architecture is compatible with data rebalancing schemes b) Datablocks support storing a copy of data ...
View QuestionThe HDFS client software implements __________ checking on the contents of HDFS files.
a) metastore b) parity c) checksum d) none of the mentioned Answer: c Explanation: When ...
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