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EMC E20-065 Advanced Analytics Specialist Exam for Data Scientists Exam Practice Test

Demo: 9 questions
Total 66 questions
Get E20-065 Full Access Download E20-065 PDF

Advanced Analytics Specialist Exam for Data Scientists Questions and Answers

Question 1

Why would a company decide to use HBase to replace an existing relational database?

Options:

A.

It is required for performing ad-hoc queries.

B.

Varying formats of input data requires columns to be added in real time.

C.

The company's employees are already fluent in SQL.

D.

Existing SQL code will run unchanged on HBase.

Question 2

What is a characteristic of stop words?

Options:

A.

Used in term frequency analysis

B.

Include words such as "a", "an", and "the"

C.

Meaningful words requiring a parser to stop and examine them

D.

Don't occur often in text

Question 3

What do lemmatization and stemming have in common?

Options:

A.

Use WordNet

B.

Remove common words in a natural language

C.

Reduce the high dimensionality in text

D.

Use a set of heuristics

Question 4

What is a characteristic of spark?

Options:

A.

Unable to run map -> reduce execution plans

B.

Supports applications written in Python, Java, and Scala

C.

Less efficient processing small files than Hadoop MapReduce

D.

Supports workflows that can return to previous work steps

Question 5

Consider the two sentences below.

  • I mailed my credit card application to the bank
  • We walked along the river bank until we came to a waterwheel

What type of NLP ambiguity might occur when interpreting the word "bank"?

Options:

A.

Discourse

B.

Syntactic

C.

Semantic

D.

Acoustic

Question 6

What are key characteristics of regular lattices?

Options:

A.

Low clustering coefficients, high network diameters

B.

High clustering coefficients, small network diameters

C.

Low clustering coefficients; small network diameters

D.

High clustering coefficients; high network diameters

Question 7

What is the maximum degree of a node in an undirected graph with 50 nodes'?

Options:

A.

49

B.

50

C.

1250

D.

2500

Question 8

How is the relative value of a node visualized in a sunburst?

Options:

A.

Color

B.

Area

C.

Gradient

D.

Position

Question 9

In a connected, undirected graph of 5 nodes with 10 edges, how many more edges need to be added to make the clustering coefficient of every node equal 1 ?

Options:

A.

0

B.

5

C.

10

D.

15

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Demo: 9 questions
Total 66 questions
Get E20-065 Full Access Download E20-065 PDF