According to IBM, what are the three characteristics of Big Data?
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Mention what is rack awareness?
Explain the difference between an inputsplit and a block?
What is streaming in Hadoop?
What is a udf?
Mention what is distributed cache in hadoop?
Why do we need Hadoop?
Why do we need Hadoop Archives? How is it created?
What is the use of context object?
What is the key difference between NameNode and DataNode in Hadoop?
Why Hadoop performs replication, although it results in data redundancy?
How Big is ‘Big Data’?
Explain InputSplit in Hadoop?
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