Test Your Programming Skills with Safcode!

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Here is all important interview / exams questions.
Student doing practice apptitude test on safcode platform.
Instruction: "Total Number of Questions: 20
Each question carry 10 mark , no negative marking"

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Quiz Start

1. Which of these are valid types of Web Worker? Only Shared are not Dedicated
None of These
Neither Dedicated nor Shared
Dedicated and Shared

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2. Which of these consumes CPU cycles and makes the system less responsive? JSON
DOM API
XAMPP
Web Worker

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3. _________ is a robust JavaScript minification tool. JavaScript Optimizer
All of them
Gulp Tool
Google Closure Compiler

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4. Identify the language from which JSON is derived. C
JavaScript
PHP
ECMAScript

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5. The ____ type specifies that a variable can take only positive values. Positive
Positive
Signed
Unsigned

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6. When an object through a combination of properties and methods its semantics, it is called ________. Duck-typing
Compiler
CoffeScript
Traceur

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7. Which of the following protocol service uses JSON? IP
SOAP
HTTP
None of these

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8. What language defines the behavior of a web page? CSS
HTML
XML
Javascript

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9. __________ converts different language into JavaScript. Preprocessor
Transpilers
None of them
Compilers

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10. Which of the following is the tainted property of a window object in Java Script? Protocol
Defaultstatus
Pathname
Host

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11. Which of these is a language and also asset of tools complied into javascript itself? TypeScript
None of Them
Non-Script
CoffeeScript

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12. A _______ define what kind of value will be stored by a particular variable. Data Type
Return Type
None of these
Variable

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13. Which among these predefined properties does RegExp have? Pattern and Matcher
Pattern Only
Matcher and Madrid
None of these

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14. How many times does the compilation of the preprocessor happen before the first javascript is encountered? Two
Three
One
None of Them

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15. What is the alternate name for Java script? LimeScript
ECMScript
Both a and d
ECMAScript

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16. Range for char datatype is _________. -128 to 127
-32768 t0 32767
256 to 255
None of these

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17. Which of the following is an asynchronous function? CallBack
Blocking
Grouping
Parse

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18. Java Script entities start with ____________ and end with ___________? Semicolon, Ampersand
Ampersand, colon
Semicolon, colon
Ampersand, semicolon

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19. Which of the following keyword is used to create an object? new
None of these
class
Object

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20. _________ converts edge JavaScript into plain old ES5 JavaScript that can run in any new as well as old browser. Rollup
Babel
Webpack
None of These

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