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Lecture 23 Quiz: Big Data
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What should most data scientists count as "big data"?
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Data fits on disk in a single machine
data fits in RAM on a small cluster of machines
data fits in RAM on a big cluster of machines
2&3
Which of the following data transmission is fastest?
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network
cache
RAM
disk
Which of the following property of mapreduce is NOT true?
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The reducer is associative
The reducer g(g(a,b),c) = g(a,g(b,c))
The reducer is commutative
All of the above are true
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