Explore topic-wise MCQs in Data Science.

This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Data Science knowledge and support exam preparation. Choose a topic below to get started.

1.

Code chunks begin with “`{r} and end with “`.

A. True
B. False
Answer» B. False
Discussion
2.

The document produced by knitr document has which of the following extension?

A. .md
B. .rmd
C. .html
D. none of the mentioned
Answer» C. .html
Discussion
3.

Which of the following statement is used for importing knitr library?

A. library(knitr)
B. import knitr
C. lib(knitr)
D. none of the mentioned
Answer» B. import knitr
Discussion
4.

Which of the following is the correct order of conversion?

A. .md->.Rmd->.html
B. .Rmd->.md->.html
C. .Rmd->.md->.xml
D. all of the mentioned
Answer» B. .Rmd->.md->.html
Discussion
5.

Which of the following global option has value “hide”?

A. results
B. fig.width
C. echo
D. none of the mentioned
Answer» B. fig.width
Discussion
6.

Which of the following global options are available for figures in knitr?

A. fig.height
B. fig.size
C. fig.breadth
D. all of the mentioned
Answer» B. fig.size
Discussion
7.

Which of the following is required for not echoing the code?

A. echo=TRUE
B. print=TRUE
C. echo=FALSE
D. all of the mentioned
Answer» B. print=TRUE
Discussion
8.

Point out the correct combination related to output statements.

A. results: “asis”
B. echo: true
C. echo=false
D. none of the mentioned
Answer» B. echo: true
Discussion
9.

Which of the following is suitable for knitr?

A. Reports
B. Data preprocessing documents
C. Technical manuals
D. All of the mentioned
Answer» B. Data preprocessing documents
Discussion
10.

THE_DOCUMENT_PRODUCED_BY_KNITR_DOCUMENT_HAS_FOLLOWING_EXTENSION:?$
A. .md
B. .rmd
C. .html
D. none of the Mentioned
Answer» C. .html
Discussion
11.

Code chunks begin with “`{r} and end with “`.$#

A. True
B. False
Answer» B. False
Discussion
12.

Which of the following statement is used for importing knitr library ?

A. library(knitr)
B. import knitr
C. lib(knitr)
D. none of the Mentioned
Answer» B. import knitr
Discussion
13.

knitr is good for complex time-consuming computations.

A. True
B. False
Answer» C.
Discussion
14.

Which of the following is correct order of conversion ?

A. .md->.Rmd->.html
B. .Rmd->.md->.html
C. .Rmd->.md->.xml
D. all of the Mentioned
Answer» B. .Rmd->.md->.html
Discussion
15.

Which of the following global option has value “hide” ?$

A. results
B. fig.width
C. echo
D. none of the Mentioned
Answer» B. fig.width
Discussion
16.

Which of the following is required for not echoing the code ?
A. echo=TRUE
B. print=TRUE
C. echo=FALSE
D. all of the Mentioned
Answer» B. print=TRUE
Discussion
17.

Point out the correct combination related to output statements:

A. results: “asis”
B. echo: true
C. echo=false
D. none of the Mentioned
Answer» B. echo: true
Discussion
18.

Which of the following is suitable for knitr ?

A. Reports
B. Data preprocessing documents
C. Technical manuals
D. all of the Mentioned
Answer» B. Data preprocessing documents
Discussion