E20-007 Exam - Free Dell Questions and Answers

Question #6 (Topic: )

Refer to the exhibit.
[EMC-E20-007-7.0/EMC-E20-007-4_2.png]
The graph represents an ROC space with four classifiers labelled A through D. Which point
in the graph represents a perfect classification?

A. S B. P C. Q D. R

Answer: A

Question #7 (Topic: )

Imagine you are trying to hire a Data Scientist for your team. In addition to technical ability
and quantitative background, which additional essential trait would you look for in people
applying for this position?

A. Communication skill B. Scientific background C. Domain expertise D. Well Organized

Answer: A

Question #8 (Topic: )

The web analytics team uses Hadoop to process access logs. They now want to correlate
this data with structured user data residing in a production single-instance JDBC database.
They collaborate with the production team to import the data into Hadoop. Which tool
should they use?

A. Sqoop B. Pig C. Chukwa D. Scribe

Answer: A

Question #9 (Topic: )

What is a property of windows functions in SQL commands?

A. Used to calculate moving averages over various intervals B. Group rows into a single output row C. Used between the keywords FROM and WHERE in a SELECT command D. Ordering data within a window is not required

Answer: A

Question #10 (Topic: )

You are analyzing data in order to build a classifier model. You discover non-linear data
and discontinuities that will affect the model. Which analytical method would you
recommend?

A. Decision Trees B. Logistic Regression C. ARIMA D. Linear Regression

Answer: A

Dell E20-007 - Data Science Associate Exam Exam