Dell EMC E20-065 Exam Practice Test Instant Access

Question 1

What does YARN provide over and above MapReduce?

ASeparate cluster and resource management

BParallelized processing

CSerialized processing

DAccess to HDFS data

Answer : A

Question 2

Which Hadoop Files System shell command copies data from a local file system into HDFS?

Arm

Bcp

Cput

Dget

Answer : C

Question 3

Which representation is most suitable for a small and highly connected network?

AEdge list

BAdjacency matrix

CEigenvector centrality

DAdjacency list

Answer : B

Question 4

Which scenario is a proper use case for multinomial logistic regression?

AA marketing firm wants to estimate the personal income of a group of potential customers.
Using inputs such as age, education, marital status, and credit card expenditures, a data scientist is building a model that will estimate a person's
income

BA logistic distribution company wants to minimize the distance traveled by its delivery trucks.
A data scientist is building a model to determine the optimal route for each of tis trucks

CTo improve the initial routing of a loan application, a financial institution plans to classify a loan application as Approve, Reject, or Possibly_Approve. Based on the company's historical loan application data, a data scientist is building a model to assign one of these three outcomes to each submitted application.

DA manufacturer plans to determine the optimal number of workers to employ in an assembly line process. Utilizing the observed distributions of the task durations of each process step, a data scientist is building a model to mimic the interactions and dependencies between each stage in the manufacturing process.

Answer : C

Question 5

What is a characteristic of the trigram language model?

ABased on the second-order Markov process

BEquivalent to trigram hidden Markov models

CUses smoothing to reduce the high dimensionality in text

DCan be used for part-of -speech tagging

Answer : A

Question 6

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

AIt is required for performing ad-hoc queries.

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

CThe company's employees are already fluent in SQL.

DExisting SQL code will run unchanged on HBase.

Answer : A

Question 7

What elements are needed to determine the time complexity of finding all the cliques of size k in social network analysis?

AEigenvector centrality and betwenness

BClique size and total number of nodes in the network

CNumber of edges in the network and centrality measure of the cliques

DClique size and betweenness centrality

Answer : B

Dell EMC E20-065 Data Scientist Advanced Analytics Specialist Exam Practice Test