Hadoop achieves reliability by replicating the data across multiple hosts and hence does not require ________ storage on hosts.(a) RAID(b) Standard RAID levels(c) ZFS(d) Operating systemThe question was asked in homework.My enquiry is from History of Hadoop topic in portion Basics of Hadoop of Hadoop

Hadoop achieves reliability by replicating the data across multiple ho

1.	Hadoop achieves reliability by replicating the data across multiple hosts and hence does not require ________ storage on hosts.(a) RAID(b) Standard RAID levels(c) ZFS(d) Operating systemThe question was asked in homework.My enquiry is from History of Hadoop topic in portion Basics of Hadoop of Hadoop
Answer» CORRECT answer is (a) RAID To ELABORATE: With the default replication value, 3, data is stored on three nodes: two on the same rack, and ONE on a DIFFERENT rack.

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