Quiz  /  Data Science Gate & PSU MCQ Questions With Answers

  • 1. 
    Which of the following term is appropriate to the above figure ?

  • Large Data
  • Big Data
  • Dark Data
  • None of the mentioned

  • 2. 
    Following is The vector of logical values:

  • > TEMPERATURE[-2]
  • > TEMPERATURE[c("Q1", "Q4")]
  • > TEMPERATURE[TEMPERATURE < 15]
  • > TEMPERATURE[2]

  • 3. 
    Which of the following is the top most important thing in data science ?

  • answer
  • question
  • data
  • none of the Mentioned

  • 4. 
    R is an__________programming language?

  • Closed source
  • GPL
  • Open source
  • Definite source

  • 5. 
    How many control statements are present in R?

  • 6
  • 7
  • 8
  • 9

  • 6. 
    The ____________ in R is a vector.

  • Basic data structure
  • Basic datatypes
  • Both

  • 7. 
    Positive integers Vector, Negative integers Vector are used to extract subset of vector?

  • True
  • False

  • 8. 
    Which are the R Data Types?

  • Vector
  • Matrices
  • Lists
  • None of the above
  • All of the above

  • 9. 
    Which of the following is most important language for Data Science ?

  • Java
  • Ruby
  • R
  • None of the mentioned

  • 10. 
    How many types of data types are present in R?

  • 4
  • 5
  • 6
  • 7

  • 11. 
    Atomic vectors and Lists have three common properties :

  • Type function, what it is?
  • Length function, how many elements it contains.
  • Attribute function, extra arbitrary metadata.
  • None of Above
  • All of the above

  • 12. 
    Who developed R?

  • Dennis Ritchie
  • Ross Ihaka & Robert Gentleman
  • Bjarne Stroustrup
  • James Gosling

  • 13. 
    Which of the following is one of the key data science skill ?

  • Statistics
  • Machine Learning
  • Data Visualization
  • All of the Mentioned

  • 14. 
    Which is the type of R Atomic Vectors?

  • Numeric Data Type
  • Integer Data Type
  • Both
  • None of the above

  • 15. 
    Vectors come in two parts_____ and _____.

  • Atomic vectors and matrix
  • Atomic vectors and array
  • Atomic vectors and list

  • 16. 
    Which of the following is key characteristic of hacker ?

  • Afraid to say they don’t know the answer
  • Willing to find answers on their own
  • Not Willing to find answers on their own
  • All of the mentioned

  • 17. 
    Find correct code for combining following Vectors : n = c (1, 3, 8) s = s (p, q, r)

  • A(s, n)
  • C (n, s)
  • D(n, s)
  • E(n, s)

  • 18. 
    Character strings Vector, Logical values Vector are forms of vector indexing?

  • True
  • False

  • 19. 
    How many types of atomic vectors are present?

  • 3
  • 4
  • 5
  • 6
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