MCQOPTIONS
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MCQOPTIONS
This section includes 87 Mcqs, each offering curated multiple-choice questions to sharpen your Javascript knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which is the method used to process on the input’s post data before it is saved to the database? |
| A. | rep() |
| B. | ettings() |
| C. | efineSettings() |
| D. | repSettings() |
| Answer» E. | |
| 2. |
Which is the method used to process on the input's post data before it is saved to the database? |
| A. | prep() |
| B. | settings() |
| C. | defineSettings() |
| D. | prepSettings() |
| Answer» E. | |
| 3. |
What type of scooping is present in JavaScript? |
| A. | Lexical |
| B. | Literal |
| C. | Both Lexical and Literal |
| D. | None of the mentioned |
| Answer» B. Literal | |
| 4. |
When does JSNLog have server-side extensions?%! |
| A. | Use of .NET |
| B. | Use of Java |
| C. | Both .NET and Java |
| D. | None of the mentioned |
| Answer» B. Use of Java | |
| 5. |
Which of the following reads the textual contents of a URL and returns as a string?%! |
| A. | spawn(f); |
| B. | load(filename,…); |
| C. | readFile(file); |
| D. | readUrl(url); |
| Answer» E. | |
| 6. |
Which of the following are appenders?%! |
| A. | DummyAppender |
| B. | ConsoleAppender |
| C. | FileAppender |
| D. | All of the mentioned |
| Answer» E. | |
| 7. |
Which of the following JavaScript logging tool is standalone?%! |
| A. | Blackbird |
| B. | Log Hound |
| C. | jsTracer |
| D. | fvlogger |
| Answer» C. jsTracer | |
| 8. |
What is the meaning of JavaScript Hoisting?%! |
| A. | Moving declarations to bottom |
| B. | Moving declarations to top |
| C. | Hosting variables by itself |
| D. | None of the mentioned |
| Answer» C. Hosting variables by itself | |
| 9. |
Which is the function in JavaScript that will print the current page in JavaScript?%! |
| A. | print() |
| B. | printcurrent() |
| C. | print(now) |
| D. | print(this) |
| Answer» B. printcurrent() | |
| 10. |
What does it indicate when the radix value is 16?%! |
| A. | String begins with 0x |
| B. | String begins with 0 |
| C. | String begins with 0P |
| D. | String begins with FF |
| Answer» B. String begins with 0 | |
| 11. |
What are the parameters of the method JSON.parse()?%! |
| A. | text |
| B. | reviver |
| C. | both text and reviver |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 12. |
Which of the following is the fastest JavaScript parser?%! |
| A. | JSLint |
| B. | Esprima |
| C. | Acron |
| D. | Traceur |
| Answer» D. Traceur | |
| 13. |
According to the workflow of a runtime logging, what happens after calculating the run time?%! |
| A. | Display to screen |
| B. | Log to server |
| C. | Either Display to screen or Log to server |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 14. |
What type of scooping is present in JavaScript?%! |
| A. | Lexical |
| B. | Literal |
| C. | Both Lexical and Literal |
| D. | None of the mentioned |
| Answer» B. Literal | |
| 15. |
What is the purpose of the adoptNode() method?%! |
| A. | Removes node |
| B. | Makes it ready for insertion |
| C. | Removes node and Makes it ready for insertion |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 16. |
Which of the following JavaScript logging tool is also a debugging tool?%! |
| A. | Blackbird |
| B. | Log Hound |
| C. | jsTracer |
| D. | fvlogger |
| Answer» D. fvlogger | |
| 17. |
Which of the following are JavaScript logging library?%! |
| A. | log |
| B. | loglevel |
| C. | leveljavascript |
| D. | jslogjava |
| Answer» C. leveljavascript | |
| 18. |
What does the method defineSettings() return?%! |
| A. | Array of settings name |
| B. | Array of hash key |
| C. | Array of strings |
| D. | None of the mentioned |
| Answer» B. Array of hash key | |
| 19. |
What is necessary when we need to create a new field in craft?%! |
| A. | Type of the input |
| B. | Type of the output |
| C. | Type of the field |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 20. |
*/*_What does it indicate when the radix value is 16?? |
| A. | String begins with 0x |
| B. | String begins with 0 |
| C. | String begins with 0P |
| D. | String begins with FF |
| Answer» B. String begins with 0 | |
| 21. |
*/*_Which is the function in JavaScript that will print the current page in JavaScript?? |
| A. | print() |
| B. | printcurrent() |
| C. | print(now) |
| D. | print(this) |
| Answer» B. printcurrent() | |
| 22. |
*/*_What is the meaning of JavaScript Hoisting?? |
| A. | Moving declarations to bottom |
| B. | Moving declarations to top |
| C. | Hosting variables by itself |
| D. | None of the mentioned |
| Answer» C. Hosting variables by itself | |
| 23. |
*/*_Which of the following JavaScript logging tool is also a debugging tool?? |
| A. | Blackbird |
| B. | Log Hound |
| C. | jsTracer |
| D. | fvlogger |
| Answer» D. fvlogger | |
| 24. |
*/*_What does the method defineSettings() return?? |
| A. | Array of settings name |
| B. | Array of hash key |
| C. | Array of strings |
| D. | None of the mentioned |
| Answer» B. Array of hash key | |
| 25. |
*/*_Which of the following are JavaScript logging library?? |
| A. | log |
| B. | loglevel |
| C. | leveljavascript |
| D. | jslogjava |
| Answer» C. leveljavascript | |
| 26. |
*/*_What is necessary when we need to create a new field in craft?? |
| A. | Type of the input |
| B. | Type of the output |
| C. | Type of the field |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 27. |
*/*_What type of scooping is present in JavaScript?? |
| A. | Lexical |
| B. | Literal |
| C. | Both Lexical and Literal |
| D. | None of the mentioned |
| Answer» B. Literal | |
| 28. |
*/*_According to the workflow of a runtime logging, what happens after calculating the run time?? |
| A. | Display to screen |
| B. | Log to server |
| C. | Either Display to screen or Log to server |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 29. |
*/*_Which of the following is the fastest JavaScript parser?? |
| A. | JSLint |
| B. | Esprima |
| C. | Acron |
| D. | Traceur |
| Answer» D. Traceur | |
| 30. |
*/*_What are the parameters of the method JSON.parse()?? |
| A. | text |
| B. | reviver |
| C. | both text and reviver |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 31. |
*/*_What is the purpose of the adoptNode() method?? |
| A. | Removes node |
| B. | Makes it ready for insertion |
| C. | Removes node and Makes it ready for insertion |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 32. |
*/*_How many reserved words are there in JavaScript?? |
| A. | 63 |
| B. | 54 |
| C. | 68 |
| D. | 90 |
| Answer» B. 54 | |
| 33. |
*/*_What is the method used to stop an execution of a method?? |
| A. | clearInterval() |
| B. | clcearTimeout() |
| C. | both clearInterval() and clcearTimeout() |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 34. |
*/*_What is the parameter of the method Date.parse()?? |
| A. | date |
| B. | string |
| C. | datestring |
| D. | string |
| Answer» D. string | |
| 35. |
*/*_What is the function of the parseInt() method?? |
| A. | Parses a datatype and stores in an integer |
| B. | Parses a string and returns an integer |
| C. | Parses an integer and returns a string |
| D. | None of the mentioned |
| Answer» C. Parses an integer and returns a string | |
| 36. |
*/*_What is the return type of the method parseInt()?? |
| A. | String |
| B. | Float |
| C. | Integer |
| D. | Date |
| Answer» D. Date | |
| 37. |
*/*_What is the purpose of the UgilifyJS?? |
| A. | Exposes a simple API |
| B. | Minification |
| C. | Both Exposes a simple API and Minification |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 38. |
*/*_How to calculate the run time of a code?? |
| A. | Start time – End time |
| B. | End time – Start time |
| C. | Start time/ End time |
| D. | Start time * End time |
| Answer» C. Start time/ End time | |
| 39. |
*/*_Which of the following attribute of form tag is not set by using document object in JavaScript?? |
| A. | Target |
| B. | Enctype |
| C. | Action |
| D. | None of the mentioned |
| Answer» E. | |
| 40. |
*/*_What is the purpose of the property width belonging to the ImageData element?? |
| A. | Number of data |
| B. | Number of pixels |
| C. | Number of pixels per row of data |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 41. |
*/*_Which of the following JavaScript logging framework lets one to toggle the plane?? |
| A. | Lumberjack |
| B. | Log Hound |
| C. | jsTracer |
| D. | fvlogger |
| Answer» B. Log Hound | |
| 42. |
*/*_Which method is called right before a field is saved?? |
| A. | onBeforeSave() |
| B. | BeforeSave() |
| C. | SaveBefore() |
| D. | None of the mentioned |
| Answer» B. BeforeSave() | |
| 43. |
*/*_What is the purpose of the parameter $name ?? |
| A. | Document Name |
| B. | Input Name |
| C. | Output Name |
| D. | ID |
| Answer» C. Output Name | |
| 44. |
*/*_How do you specifically execute a command in JavaScript?? |
| A. | execcommand() |
| B. | exec(command) |
| C. | execCommand() |
| D. | exec(command id) |
| Answer» D. exec(command id) | |
| 45. |
_ What is the function of the parseInt() method?$? |
| A. | Parses a datatype and stores in an integer |
| B. | Parses a string and returns an integer |
| C. | Parses an integer and returns a string |
| D. | None of the mentioned |
| Answer» C. Parses an integer and returns a string | |
| 46. |
_ What is the parameter of the method Date.parse()?$? |
| A. | date |
| B. | string |
| C. | datestring |
| D. | string |
| Answer» D. string | |
| 47. |
_ What is the method used to stop an execution of a method?$? |
| A. | clearInterval() |
| B. | clcearTimeout() |
| C. | both clearInterval() and clcearTimeout() |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 48. |
_ Which of the following JavaScript logging framework lets one to toggle the plane?$? |
| A. | Lumberjack |
| B. | Log Hound |
| C. | jsTracer |
| D. | fvlogger |
| Answer» B. Log Hound | |
| 49. |
_ What is the purpose of the parameter $name ?$? |
| A. | Document Name |
| B. | Input Name |
| C. | Output Name |
| D. | ID |
| Answer» C. Output Name | |
| 50. |
_ Which method is called right before a field is saved?$? |
| A. | onBeforeSave() |
| B. | BeforeSave() |
| C. | SaveBefore() |
| D. | None of the mentioned |
| Answer» B. BeforeSave() | |