MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your R Programming knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Collection of objects currently stored in R is called as ________________ |
| A. | package |
| B. | workspace |
| C. | list |
| D. | task |
| Answer» C. list | |
| 2. |
Which of the following can be used to display the names of (most of) the objects which are currently stored within R? |
| A. | object() |
| B. | objects() |
| C. | list() |
| D. | class() |
| Answer» C. list() | |
| 3. |
The entities that R creates and manipulates are known as ________ |
| A. | objects |
| B. | task |
| C. | container |
| D. | packages |
| Answer» B. task | |
| 4. |
_______ will divert all subsequent output from the console to an external file. |
| A. | sink |
| B. | div |
| C. | exp |
| D. | exc |
| Answer» B. div | |
| 5. |
If commands are stored in an external file, say commands.R in the working directory work, they may be executed at any time in an R session with the command ____________ |
| A. | source(“commands.R”) |
| B. | exec(“commands.R”) |
| C. | execute(“commands.R”) |
| D. | exect(“command.R”) |
| Answer» B. exec(“commands.R”) | |
| 6. |
Files containing R scripts ends with extension ____________ |
| A. | .S |
| B. | .R |
| C. | .Rp |
| D. | .SP |
| Answer» C. .Rp | |
| 7. |
IF_COMMANDS_ARE_STORED_IN_AN_EXTERNAL_FILE,_SAY_COMMANDS.R_IN_THE_WORKING_DIRECTORY_WORK,_THEY_MAY_BE_EXECUTED_AT_ANY_TIME_IN_AN_R_SESSION_WITH_THE_COMMAND_:?$ |
| A. | source(“commands.R”) |
| B. | exec(“commands.R”) |
| C. | execute(“commands.R”) |
| D. | all of the mentioned |
| Answer» C. execute(‚Äö√Ñ√∂‚àö√ë‚àö‚à´commands.R‚Äö√Ñ√∂‚àö√ë‚àöœÄ) | |
| 8. |
POINT_OUT_THE_WRONG_STATEMENT_:?$ |
| A. | : operator is used to create integer sequences |
| B. | The numbers in the square brackets are part of the vector itself |
| C. | There is a difference between the actual R object and the manner in which that R object is printed to the console |
| D. | All of the mentioned |
| Answer» C. There is a difference between the actual R object and the manner in which that R object is printed to the console | |
| 9. |
Files containing R scripts ends with extension ? |
| A. | .S |
| B. | .R |
| C. | .Rp |
| D. | All of the mentioned |
| Answer» B. .R | |