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Effective Study Techniques for the EMC E20-065 Exam

Questions 11

How does Latent Dinchlet Allocation (LDA) interpret a document?

Options:
A.

As a single-predefined topic

B.

As a mixture of pre-defined topics

C.

As having a mixture of sentiments

D.

As having a single pre-defined sentiment

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Questions 12

In multinomial logistic regression, what is used to calculate the probability of outcome occurring?

Options:
A.

Logistic function applied to a linear combination of the input and outcome variables

B.

Linear regression applied to a combination of input variables

C.

Linear regression applied to a combination of input and outcome variables

D.

Logistic function applied to a linear combination of the input variables

Questions 13

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

Questions 14

What is an important simu-lation design consideration?

    Options:
    A.

    Ensure model Inputs align with reality

    B.

    Use different seed values to regenerate results

    C.

    For rare event models, minimize number of trials

    D.

    A complex model is better than a simple model

    Questions 15

    What describes how nodes in a social network are similar to each other in characteristics?

    Options:
    A.

    Community clustering

    B.

    Modularity

    C.

    Homophily

    D.

    Strongly tied network

    Questions 16

    Which problem type is best suited for simulation?

    Options:
    A.

    One with a few. non-random input variables

    B.

    One that has a closed-form solution

    C.

    One with numerous, non-random Input-variables

    D.

    One that compares "what-if scenarios

    Questions 17

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

    Options:
    A.

    Color

    B.

    Area

    C.

    Gradient

    D.

    Position

    Questions 18

    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.

    Questions 19

    What best describes the meaning behind the phrase "Six Degrees of Separation'"?

    Options:
    A.

    Ability to use about six hops to reach any other node in an extremely large social network

    B.

    Erdos number of all scholars having written papers with Paul Erdos

    C.

    Maximum number of edges between nodes in a graph with a diameter of six

    D.

    Typical distance between nodes that are connected by triadic closure