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MCQs

Total Questions : 10
Question 1. Which of the following transforms can be performed with data value ?
  1.    log2
  2.    cos
  3.    log10
  4.    All of the Mentioned
 Discuss Question
Answer: Option D. -> All of the Mentioned


Many common transform can be applied to the data with R.


Question 2. Which of the following process involves structuring datasets to facilitate analysis ?
  1.    Data tidying
  2.    Data mining
  3.    Data booting
  4.    All of the Mentioned
 Discuss Question
Answer: Option A. -> Data tidying


The principles of tidy data provide a standard way to organize data values within a dataset.


Question 3. Which of the following request can be issued from httr package ?
  1.    GET
  2.    PUT
  3.    DELETE
  4.    All of the mentioned
 Discuss Question
Answer: Option D. -> All of the mentioned


Data Science Multiple Choice Questions & Answers : Data Science Getting Data


Question 4. Which of the following signs are used to indicate repetition ?
  1.    #
  2.    *
  3.    "“
  4.    All of the mentioned
 Discuss Question
Answer: Option B. -> *


* and + are metacharacters for repetition of data.


Question 5. Which of the following can be used to view all the tables in memory ?
  1.    tables
  2.    alltable
  3.    table
  4.    None of the Mentioned
 Discuss Question
Answer: Option A. -> tables


The table function is a very basic, but essential, function to master while performing interactive data analyses.


Question 6. Which of the following package is used for reading excel data ?
  1.    xlsx
  2.    xlsc
  3.    read.sheet
  4.    All of the Mentioned
 Discuss Question
Answer: Option A. -> xlsx


read.xlsx and read.xlsx functions are part of xlsx package.


Question 7. Which of the following package is used for reading HTML and XML data ?
  1.    httr
  2.    http
  3.    httx
  4.    All of the Mentioned
 Discuss Question
Answer: Option A. -> httr


httr contain tools for Working with URLs and HTTP.


Question 8. Which of the following data is put into a formula to produce commonly accepted results ?
  1.    Raw
  2.    Processed
  3.    Synchronized
  4.    All of the Mentioned
 Discuss Question
Answer: Option B. -> Processed


Raw data came from direct measurements.


Question 9. Which of the following is used for specifying character class with metacharacter ?
  1.    []
  2.    {}
  3.    /+
  4.    All of the Mentioned
 Discuss Question
Answer: Option A. -> []


You can list set of characters to accept a given point in the match.


Question 10. Which of the following is another name for raw data ?
  1.    destination data
  2.    eggy data
  3.    secondary
  4.    Machine Learning
 Discuss Question
Answer: Option B. -> eggy data


Although raw data has the potential to become "information, extraction, organization, and sometimes analysis and formatting for presentation are required for that to occur.


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