Dell EMC D-DS-FN-23 Exam Questions Instant Access

Question 1

What is part of the model output for a linear regression?

AThe assignment of each input datum to a cluster

BCoefficients indicating relative impact of the input variables on the outcome

CThe set of all rules X -> Y with minimum support and confidence

DProbability score for each possible class label

Answer : B

Question 2

What is a business driver for Big Data analytics adoption?

AImplement the latest technology and tools

BMaintain existing data silos

CIdentify new business opportunities

DEnsure the analysts work in isolation

Answer : C

Question 3

Which visualization technique should be avoided?

AUsing a small number of contrasting colors to draw distinctions

BUsing tables of numbers to present all of the data visually

CAchieving a high data-ink ratio

DUsing visuals to illustrate key points

Answer : B

Question 4

You have been given a task to improve sales force compensation of your organization. As a result of a study, your team decides to classify personnel as follows:

Did not meet quota

Met quota

Exceeded 150% of quota

In which data analytics lifecycle phase should you define these categories for analysis purposes?

AModel building

BCommunicate results

COperationalize

DModel planning

Answer : D

Question 5

What metrics are used to help calculate relevance in text analysis?

ATF and R square

BIDF and information gain

CInformation gain and confidence interval

DTF and IDF

Answer : D

Question 6

In association rules, given items X and Y, what does lift measure?

APercentage of transactions that contain an itemset with X

BPercentage of transactions with Xthat also contain Y

CDifference in the probability ofX and Y appearing together compared with expectations as if they were statistically independent

DHow many times more often X and Y occur together than expected if they were statistically independent, expressed as a ratio

Answer : D

Question 7

What does ''MAD'' in MADlib stand for?

AMagnetic Association Design

BMagnetic Agile Deep

CMultiple Agile Development

DMultiple Access Design

Answer : D

Dell EMC Dell Certified Data Science Foundations D-DS-FN-23 Exam Questions