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MCQs

Total Questions : 67 | Page 4 of 7 pages
Question 31. Which of the following is/are the features of R?
  1.    Small
  2.    Self-contained
  3.    Extensible
  4.    All of the mentioned
 Discuss Question
Answer: Option D. -> All of the mentioned
Question 32. What is the advantage for Linux users using R?
  1.    They get a command sequence to install the particular Linux flavor
  2.    They get a compiled installer
  3.    All of the mentioned
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> They get a command sequence to install the particular Linux flavor
Question 33. Which of the following is the base install for R?
  1.    Contrib
  2.    Base
  3.    Rtools
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Base
Question 34. The code of the R language has an extension?
  1.    .Rl
  2.    .R
  3.    .lR
  4.    .RR
 Discuss Question
Answer: Option B. -> .R
Question 35. Which is the keyword used to open the Help window?
  1.    ()
  2.    #
  3.    ?
  4.    =
 Discuss Question
Answer: Option C. -> ?
Question 36. Which of the following is used to run ad hoc R commands?
  1.    R Console
  2.    R Primer
  3.    Both R Console and R Primer
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> R Console
Question 37. What is the usage of the keyword ?? in R?
  1.    Help window
  2.    Extensive search
  3.    Error correction
  4.    Error detection
 Discuss Question
Answer: Option B. -> Extensive search
Question 38. For a more extensive search, which keyword needs to be used?
  1.    ??
  2.    ?
  3.    ?=
  4.    =?
 Discuss Question
Answer: Option A. -> ??
Question 39. Which type of comment is not supported in R?
  1.    Single-line comments
  2.    Multi-line comments
  3.    Both Single-line & Multi-line comments
  4.    Both Single-line & Multi-line comments
 Discuss Question
Answer: Option B. -> Multi-line comments
Question 40. What is the usage of the keyword ? in R?
  1.    Help window
  2.    Extensive search
  3.    Error correction
  4.    Error detection
 Discuss Question
Answer: Option A. -> Help window

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