MCQOPTIONS
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MCQOPTIONS
This section includes 62 Mcqs, each offering curated multiple-choice questions to sharpen your Javascript knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the purpose of getting the parameter fvonly? |
| A. | To repeat the view test |
| B. | To get the first view |
| C. | To debug the code |
| D. | To compile the code |
| Answer» C. To debug the code | |
| 2. |
Which of the following is not a socket property? |
| A. | onopen |
| B. | readyState |
| C. | onmessage |
| D. | ready |
| Answer» E. | |
| 3. |
Which environment variable must the user enable in order to enable data tainting?%! |
| A. | ENABLE_TAINT |
| B. | MS_ENABLE_TAINT |
| C. | NS_ENABLE_TAINT |
| D. | ENABLE_TAINT_NS |
| Answer» D. ENABLE_TAINT_NS | |
| 4. |
What is the tainted property of the window object?%! |
| A. | Pathname |
| B. | Protocol |
| C. | Default status |
| D. | Host |
| Answer» D. Host | |
| 5. |
Which tag can handle mouse events in Netscape?%! |
| A. | img |
| B. | a |
| C. | br |
| D. | none of the mentioned |
| Answer» B. a | |
| 6. |
How will you convert the returned API into an XML object?%! |
| A. | SimpleElement() |
| B. | SimpleXMLElement() |
| C. | XMLElement() |
| D. | None of the mentioned |
| Answer» C. XMLElement() | |
| 7. |
What will the file_get_contents() return?%! |
| A. | Server’s response |
| B. | Errors |
| C. | Exception |
| D. | Client’s response |
| Answer» B. Errors | |
| 8. |
What is the purpose of the method plot()?%! |
| A. | Displays symbols |
| B. | Displays charts |
| C. | Displays symbols and charts |
| D. | None of the mentioned |
| Answer» C. Displays symbols and charts | |
| 9. |
How many parameters does the WebPageTest API accept?%! |
| A. | 5 |
| B. | 6 |
| C. | 7 |
| D. | 8 |
| Answer» E. | |
| 10. |
How to save chart as a Window metafile?%! |
| A. | metafile() |
| B. | win.metafile() |
| C. | file() |
| D. | metawin() |
| Answer» C. file() | |
| 11. |
*$_What will the file_get_contents() return?? |
| A. | Server’s response |
| B. | Errors |
| C. | Exception |
| D. | Client’s response |
| Answer» B. Errors | |
| 12. |
*$_What is the purpose of the method plot()?? |
| A. | Displays symbols |
| B. | Displays charts |
| C. | Displays symbols and charts |
| D. | None of the mentioned |
| Answer» C. Displays symbols and charts | |
| 13. |
*$_How many parameters does the WebPageTest API accept?? |
| A. | 5 |
| B. | 6 |
| C. | 7 |
| D. | 8 |
| Answer» E. | |
| 14. |
*$_How to save chart as a Window metafile?? |
| A. | metafile() |
| B. | win.metafile() |
| C. | file() |
| D. | metawin() |
| Answer» C. file() | |
| 15. |
*$_How does the client and the server communicate following the rules defined by the WebSocket protocol?? |
| A. | Long-lived TCP Socket |
| B. | Short-lived TCP Socket |
| C. | UDP Socket |
| D. | HTTP Socket |
| Answer» B. Short-lived TCP Socket | |
| 16. |
*/*_What are the processes that take place within R?? |
| A. | Splitting of data |
| B. | Aggregating of data |
| C. | Overlaying two or more data |
| D. | All of the mentioned |
| Answer» E. | |
| 17. |
*/*_R is an extension of which of the following language?? |
| A. | C |
| B. | C++ |
| C. | S |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 18. |
*/*_How do you add a particular state to the browsing history?? |
| A. | pushState() |
| B. | replaceState() |
| C. | state() |
| D. | none of the mentioned |
| Answer» B. replaceState() | |
| 19. |
*/*_What does an History object contain?? |
| A. | URL |
| B. | Parameters |
| C. | Attribute values |
| D. | Property |
| Answer» B. Parameters | |
| 20. |
*/*_Which of the following is a loosely-typed language?? |
| A. | R |
| B. | T |
| C. | S |
| D. | Both R and S |
| Answer» D. Both R and S | |
| 21. |
*/*_What is the usage of the keyword ?? in R?? |
| A. | Help window |
| B. | Extensive search |
| C. | Error correction |
| D. | Error detection |
| Answer» C. Error correction | |
| 22. |
*/*_What kind of data can be run in R?? |
| A. | Binary |
| B. | Text |
| C. | Decimals |
| D. | All kinds |
| Answer» E. | |
| 23. |
%_What is the purpose of the file_get_contents()?_% |
| A. | To get the errors and exceptions |
| B. | To get the client’s response |
| C. | To get the server’s response |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 24. |
%_Which function is used to create data frames?_% |
| A. | data.frames() |
| B. | frame.data() |
| C. | data.frame() |
| D. | frame(data) |
| Answer» D. frame(data) | |
| 25. |
%_What is the purpose of the method par()?_% |
| A. | Makes the text vertical |
| B. | Makes the text horizontal |
| C. | Makes the text diagonal |
| D. | None of the mentioned |
| Answer» C. Makes the text diagonal | |
| 26. |
%_What is the purpose of the method symbols in R?_% |
| A. | Draw symbols |
| B. | Draw other shapes |
| C. | Draw symbols and other shapes |
| D. | None of the mentioned |
| Answer» C. Draw symbols and other shapes | |
| 27. |
%_Which method is used to close the WebSocket?_% |
| A. | Socket.flush() |
| B. | Socket.close() |
| C. | Socket.Close() |
| D. | Socket.dispose() |
| Answer» C. Socket.Close() | |
| 28. |
__What type of language is generally used to collect the data?__ |
| A. | Glue language |
| B. | Statistical language |
| C. | Both Glue and Statistical language |
| D. | None of the mentioned |
| Answer» B. Statistical language | |
| 29. |
__What is the purpose of the event window.onpopstate?__ |
| A. | When a state object is replaced |
| B. | When a state object is added |
| C. | When a state object is removed |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 30. |
__How will you update the URL displayed in the location bar?__ |
| A. | location |
| B. | location.URL |
| C. | location.hash |
| D. | url |
| Answer» D. url | |
| 31. |
__Which of the following is not a WebSocket event?__ |
| A. | open |
| B. | close |
| C. | error |
| D. | deny |
| Answer» E. | |
| 32. |
__Which of the following is the assignment operator?__ |
| A. | <- |
| B. | -> |
| C. | = |
| D. | == |
| Answer» B. -> | |
| 33. |
__For a more extensive search, which keyword needs to be used?__ |
| A. | ?? |
| B. | ? |
| C. | ?= |
| D. | =? |
| Answer» B. ? | |
| 34. |
__What does the R language do?__ |
| A. | Tighten and format the chart |
| B. | Ingest and process the chart |
| C. | Format and Ingest the chart |
| D. | None of the mentioned |
| Answer» C. Format and Ingest the chart | |
| 35. |
__What is the purpose of getting the paramerer fvonly?__ |
| A. | To repeat the view test |
| B. | To get the first view |
| C. | To debug the code |
| D. | None of the mentioned |
| Answer» C. To debug the code | |
| 36. |
__Which of the following list contains multiple data types?__ |
| A. | Vectors |
| B. | Data frames |
| C. | Matrices |
| D. | None of the mentioned |
| Answer» C. Matrices | |
| 37. |
__Which is the method used to draw a bar plot?__ |
| A. | bar_plot() |
| B. | plot(bar) |
| C. | barplot() |
| D. | plotbar() |
| Answer» D. plotbar() | |
| 38. |
__Which of the following is the initial function used to create a bubble chart natively in R?__ |
| A. | init() |
| B. | chart(bubble) |
| C. | symbols() |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 39. |
_How many WebSocket events are available?$? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» D. 5 | |
| 40. |
What are the purposes R can be used for?$? |
| A. | Suck in data |
| B. | Parse data |
| C. | Process data |
| D. | All of the mentioned |
| Answer» E. | |
| 41. |
How many parameters does the replaceState() method take?$? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 42. |
What is the purpose of the method forward()?$? |
| A. | Loads any random URL in the history list |
| B. | Loads the previous URL in the history list |
| C. | Loads a specific URL from the history list |
| D. | Loads the next URL in the history list |
| Answer» E. | |
| 43. |
How will you transmit data using the connection?$? |
| A. | send(data) |
| B. | Socket.send(“data”) |
| C. | Socket.send(data) |
| D. | Socket(data) |
| Answer» D. Socket(data) | |
| 44. |
Which symbol is used to start a comment?$? |
| A. | / |
| B. | $ |
| C. | # |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 45. |
Which is the keyword used to open the Help window?$? |
| A. | () |
| B. | # |
| C. | ? |
| D. | = |
| Answer» D. = | |
| 46. |
Why do we use Adobe Illustrator along with R?$? |
| A. | Collect the relevant data |
| B. | Format the chart and to correct the errors |
| C. | Tighten and format the chart |
| D. | Ingest and process the chart |
| Answer» D. Ingest and process the chart | |
| 47. |
What will happen if you set the private flag as 1?$? |
| A. | Test will be run only by the administrator |
| B. | Test will not be run |
| C. | Test is public |
| D. | Test is not displayed in public |
| Answer» E. | |
| 48. |
Which is the function used to add the vectors?$? |
| A. | c() |
| B. | add(vectors) |
| C. | c(vectors) |
| D. | vectors.add |
| Answer» B. add(vectors) | |
| 49. |
Which of the following are methods used to save charts?$? |
| A. | pdf() |
| B. | jpeg() |
| C. | bmp() |
| D. | all of the mentioned |
| Answer» E. | |
| 50. |
What is the need for bubble charts?$? |
| A. | Represent 2D data |
| B. | Represent 3D data |
| C. | Represent 2D and 3D data |
| D. | None of the mentioned |
| Answer» C. Represent 2D and 3D data | |