Question: You have a Hadoop cluster with 1 2 0 data nodes distributed among 1 2 racks, each housing 1 0 data nodes. The cluster employs

You have a Hadoop cluster with

120

data nodes distributed among

12

racks, each housing

10

data nodes. The cluster employs rack awareness for fault tolerance and data locality. Assuming each data block is replicated three times, calculate the total number of replicas needed for a data block stored on this cluster. If a file consists of

200

data blocks, determine how many copies of each block will be stored. Explain the significance of rack awareness in maintaining fault tolerance and data locality in this setup.

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