MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
DEPENDENCIES_ARE_CHECKED_EXPLICITLY_IN_CACHING_CAVEATS.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the following should be set on chunk by chunk basis to store results of computation? |
| A. | cache=TRUE |
| B. | cache=FALSE |
| C. | caching=TRUE |
| D. | none of the Mentioned |
| Answer» B. cache=FALSE | |
| 3. |
Which of the following tool can be used for integrating text and code in one document? |
| A. | knitr |
| B. | ggplot2 |
| C. | NumPy |
| D. | None of the Mentioned |
| Answer» B. ggplot2 | |
| 4. |
Some chunks have to be re-computed every time you re-knit the file. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Which of the following is useful way to put text, code, data, output all in one document? |
| A. | Literate statistical programming |
| B. | Object Oriented programming |
| C. | Descriptive programming |
| D. | All of the Mentioned |
| Answer» B. Object Oriented programming | |
| 6. |
What is one way in which the knitr system differs from Sweave? |
| A. | knitr allows for the use of markdown instead of LaTeX |
| B. | knitr is written in python instead of R |
| C. | knitr lacks features like caching of code chunks |
| D. | None of the Mentioned |
| Answer» B. knitr is written in python instead of R | |
| 7. |
Which of the following is required to implement a literate programming system? |
| A. | A programming language like Perl |
| B. | A programming language like Java |
| C. | A programming language like R |
| D. | All of the Mentioned |
| Answer» D. All of the Mentioned | |
| 8. |
What does it mean to weave a literate statistical program? |
| A. | Convert a program from S to python |
| B. | Convert the program into a human readable document |
| C. | Convert a program to decompress it |
| D. | All of the Mentioned |
| Answer» C. Convert a program to decompress it | |
| 9. |
Which of the following is a goal of literate statistical programming? |
| A. | Combine explanatory text and data analysis code in a single document |
| B. | Ensure that data analysis documents are always exported in JPEG format |
| C. | Require that data analysis summaries are always written in R |
| D. | None of the Mentioned |
| Answer» B. Ensure that data analysis documents are always exported in JPEG format | |