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E20-065 Real Exam Questions

Advanced Analytics Specialist for Data Scientists

66 questions available · Page 1 of 7

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Question 1 Single choice

A marketing team creates a graph using a square for each data point, where the length of each side is set to the data value. The data values are 10 and 20.

What is the lie factor of the graph?

  1. A

    1

  2. B

    2

  3. C

    3

  4. D

    6

Show answer and explanation

Correct answer: B

Question 2 Single choice

What is an intended application of the MapReduce framework?

  1. A

    Processing can be broken into smaller pieces

  2. B

    Processing a large number of small files

  3. C

    Processing in real time is required

  4. D

    Processing a small subset of data

Show answer and explanation

Correct answer: A

Question 3 Single choice

What are three of the eight visual variables?

  1. A

    Selection, orientation, and mark

  2. B

    Size, separation, and orientation

  3. C

    Position, size, and orientation

  4. D

    Position, texture, and selection

Show answer and explanation

Correct answer: C

Question 4 Single choice

What is the maximum number of edges in an undirected graph of 10 nodes?

  1. A

    45

  2. B

    90

  3. C

    100

  4. D

    9

Show answer and explanation

Correct answer: A

Question 5 Single choice

Which metric would be most helpful in identifying a node that may cause network disruption if the node were removed?

  1. A

    Degree

  2. B

    Closeness

  3. C

    Betweenness

  4. D

    PageRank

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Correct answer: A

Question 6 Single choice

What are the major components of the YARN architecture?

  1. A

    ResourceManager and NodeManager

  2. B

    Task Tracker and NameNode

  3. C

    HDFS, Tez, and Spark

  4. D

    Avro, ZooKeeper, and HDFS

Show answer and explanation

Correct answer: A

Question 7 Single choice

What is a property of a good color model for ordinal data?

  1. A

    Uses a rainbow-like color map for distinction of categories

  2. B

    Uses a rainbow-like color map for ease of display and printing

  3. C

    Uses perceptually ordinal colors with just-noticeable increments

  4. D

    Uses perceptually ordinal colors with linear, perceptual increments

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Correct answer: D

Question 8 Single choice

In which step in the visualization lifecycle would you determine how the raw data is stored?

  1. A

    Visualization Planning

  2. B

    Data Preparation

  3. C

    Visualization Building

  4. D

    Discovery

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Correct answer: B

Question 9 Single choice

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

  1. A

    Eigenvector centrality and betwenness

  2. B

    Clique size and total number of nodes in the network

  3. C

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

  4. D

    Clique size and betweenness centrality

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Correct answer: B

Question 10 Single choice

Which HDFS feature protects against user errors causing accidental loss of data?

  1. A

    Encryption

  2. B

    Replication

  3. C

    Namenode federation

  4. D

    Snapshots

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Correct answer: B