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Question ID 16208

What would be considered "Big Data"?

Option A

An OLAP Cube containing customer demographic information about 100, 000, 000 customers

Option B

Daily Log files from a web server that receives 100, 000 hits per minute

Option C

Aggregated statistical data stored in a relational database table

Option D

 Spreadsheets containing monthly sales data for a Global 100 corporation

Correct Answer B
Explanation


Question ID 16210

You are given 10, 000, 000 user profile pages of an online dating site in XML files, and they
are stored in HDFS. You are assigned to divide the users into groups based on the content
of their profiles. You have been instructed to try K-means clustering on this data. How
should you proceed?

Option A

Run MapReduce to transform the data, and find relevant key value pairs.

Option B

Divide the data into sets of 1, 000 user profiles, and run K-means clustering in RHadoop iteratively.

Option C

Run a Naive Bayes classification as a pre-processing step in HDFS.

Option D

Partition the data by XML file size, and run K-means clustering in each partition.

Correct Answer A
Explanation

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