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

Question 1

Executives want to determine whether a change in a shopping rewards program has been effective in getting customers to increase their spending. Which approach could be used to determine if a significant shift in spending has occurred?

AHypothesis testing

BSample variance

CK-means clustering

DNaive

Answer : A

Question 2

What type of variable is the dependent variable from a logistic regression?

ACategorical

BContinuous

CRatio

DInterval

Answer : A

Question 3

Which Hadoop service responds to requests for compute and memory resources?

AApplication Manager

BDataNode

CScheduler

DApplication Master

Answer : C

Question 4

What converts SQL-like commands into either Tez, Spark, or MapReduce jobs that are submitted to the Hadoop cluster?

APig

BHBase

CHive

DMahout

Answer : C

Question 5

In time series analysis, what function is examined to identify the order of the autoregressive component of an ARIMA model?

ALogistic function

BLognormal distribution function

CPartial autocorrelation function

DNormal distribution function

Answer : C

Question 6

What are the two data categories that represent qualitative data?

AOrdinal and interval

BNominal and ordinal

CRatio and interval

DNominal and ratio

Answer : B

Question 7

In K-means clustering, what is a graph of the WSS versus the value of K used to help determine?

AOptimal distance between clusters

BAverage distance between observations

C'Optimal number of clusters

DAverage distance between clusters

Answer : C

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