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Data Science Dumps For EMC- E20-007

Question ID 6280
The web analytics team uses Hadoop to process access logs. They now want to correlate this data with structured user data residing in their massively parallel database. Which tool should they use to export the structured data from Hadoop?

Option A
Sqoop

Option B
PigPig

Option C
Chukwa

Option D
Scribe

Correct Answer A

Description
Update Date and Time 2017-04-28 11:08:45

Question ID 6281
When would you prefer a Naive Bayes model to a logistic regression model for classification?

Option A
When you are using several categorical input variables with over 1000 possible values each .

Option B
When you need to estimate the probability of an outcome,not just which class it is in.

Option C
When all the input variables are numerical.

Option D
When some of the input variables might be correlated.

Correct Answer A

Description
Update Date and Time 2017-04-28 11:09:59

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Question ID 6280	The web analytics team uses Hadoop to process access logs. They now want to correlate this data with structured user data residing in their massively parallel database. Which tool should they use to export the structured data from Hadoop?
Option A	Sqoop
Option B	PigPig
Option C	Chukwa
Option D	Scribe
Correct Answer	A

Question ID 6281	When would you prefer a Naive Bayes model to a logistic regression model for classification?
Option A	When you are using several categorical input variables with over 1000 possible values each .
Option B	When you need to estimate the probability of an outcome,not just which class it is in.
Option C	When all the input variables are numerical.
Option D	When some of the input variables might be correlated.
Correct Answer	A