Welcome to the Invocation and Performance MCQs Page

Dive deep into the fascinating world of Invocation and Performance with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Invocation and Performance, a crucial aspect of JavaScript. In this section, you will encounter a diverse range of MCQs that cover various aspects of Invocation and Performance, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within JavaScript.

Check out the MCQs below to embark on an enriching journey through Invocation and Performance. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of JavaScript.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Invocation and Performance. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Invocation and Performance MCQs | Page 6 of 9

Explore more Topics under JavaScript

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Basics of JavaScript

02

Arrays and Functions

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Classes and Modules

04

Server Side and Client Side Scripting

05

Document Object Model and Event Handling

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Graphics and Rendering

07

Performance Measures in JavaScript

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Socket Programming with JavaScript

09

Parsing, Benchmarking and Logging

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Caching and Debugging

11

JavaScript Animation

Q51.

What is the purpose of script loading?

Load Scripts programmatically

Load JavaScript files manually

Load JavaScript files programmatically

All of the mentioned

Discuss

Answer: (c).Load JavaScript files programmatically

Q52.

What will happen if the browser encounters a script tag without an src attribute?

Throws an error

Throws an exception

Sends it to the compiler

Sends it to the interpreter

Discuss

Answer: (d).Sends it to the interpreter

Q53.

What is the solution to the absence of a script tag without an src attribute?

Resend the scripts

Create inline JavaScript

All of the mentioned

None of the mentioned

Discuss

Answer: (b).Create inline JavaScript

Q54.

How to get a particular value using the tagged name?

getElementbyID()

getElementsbyName()

getElementsbyTagName()

getTagName()

Discuss

Answer: (c).getElementsbyTagName()

Q55.

What should be the type of the script_url?

Object

String

Array

Any of the mentioned

Discuss

Answer: (d).Any of the mentioned

Q56.

What is the purpose of using the async attribute in the script tag?

Load the script asynchronously

Load the script synchronously

Load the page asynchronously

Load the page synchronously

Discuss

Answer: (a).Load the script asynchronously

Q57.

Why do we need to use an onload event in the script tag after using the async attribute?

Invoke code during page loading

Invoke code during script loading

Invoke code during downloading

None of the mentioned

Discuss

Answer: (c).Invoke code during downloading

Q58.

What is the purpose of the startTimeLogging() method?

Start the timer

Capture time logging

Capture timing data for referencing

All of the mentioned

Discuss

Answer: (d).All of the mentioned

Q59.

What is the type of datatype the async attribute optionally accepts?

Integer

String

Boolean

Decimal

Discuss

Answer: (c).Boolean

Q60.

What is the method used to create an element in the HTML DOM?

createDOMelement()

createElement()

createDOMElement()

none of the mentioned

Discuss

Answer: (b).createElement()

Page 6 of 9

Welcome to the Invocation and Performance MCQs Page

Invocation and Performance MCQs | Page 6 of 9

Explore more Topics under JavaScript

Basics of JavaScript

Arrays and Functions

Classes and Modules

Server Side and Client Side Scripting

Document Object Model and Event Handling

Graphics and Rendering

Performance Measures in JavaScript

Socket Programming with JavaScript

Parsing, Benchmarking and Logging

Caching and Debugging

JavaScript Animation

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