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Vendor: EMC
Exam Code: E20-007
Exam Name: Data Science and Big Data Analytics
Certification: Data Scientist
Total Questions: 198 Q&A
Updated on: Nov 23, 2024
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What is Hadoop?
A. Java classes for HDFS types and MapReduce job management and HDFS
B. Java classes for HDFS types and MapReduce job management and the MapReduce paradigm
C. MapReduce paradigm and HDFS
D. MapReduce paradigm and massive unstructured data storage on commodity hardware
What does R code nv <- v[v < 1000] do?
A. Selects the values in vector v that are less than 1000 and assigns them to the vector nv
B. Sets nv to TRUE or FALSE depending on whether all elements of vector v are less than
C. Removes elements of vector v less than 1000 and assigns the elements >= 1000 to nv
D. Selects values of vector v less than 1000, modifies v, and makes a copy to nv
Refer to the exhibit.
You are using k-means clustering to discover groupings within a data set. You plot within- sum-of-squares (wss) of multiple cluster sizes. Based on the exhibit, how many clusters should you use in your analysis?
A. 4
B. 2
C. 8
D. 10
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The following table comprehensively analyzes the quality and value of Data Scientist E20-007 exam materials.