MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
Extracting XML is the basis for most web scraping. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Which of the following package is used for reading JSON data? |
| A. | jsonlite |
| B. | json |
| C. | jsondata |
| D. | all of the mentioned |
| Answer» B. json | |
| 3. |
Which of the following function programmatically extract parts of XML file? |
| A. | XmlSApply |
| B. | XmlApply |
| C. | XmlSApplyData |
| D. | All of the mentioned |
| Answer» B. XmlApply | |
| 4. |
Which of the following can be used to view all the tables in memory? |
| A. | tables |
| B. | alltable |
| C. | table |
| D. | none of the mentioned |
| Answer» B. alltable | |
| 5. |
Which of the following package is used for reading excel data? |
| A. | xlsx |
| B. | xlsc |
| C. | read.sheet |
| D. | all of the mentioned |
| Answer» B. xlsc | |
| 6. |
Which of the following will set the character that represents missing value? |
| A. | na.quote |
| B. | na.strings |
| C. | nrows |
| D. | all of the mentioned |
| Answer» C. nrows | |
| 7. |
Which of the following is an important parameter of read.table function? |
| A. | file |
| B. | header |
| C. | sep |
| D. | all of the mentioned |
| Answer» E. | |
| 8. |
Which of the following function is used for loading flat files? |
| A. | read.data |
| B. | read.sheet |
| C. | read.table |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |