Welcome to the Caching and Debugging MCQs Page

Dive deep into the fascinating world of Caching and Debugging with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Caching and Debugging, a crucial aspect of JavaScript. In this section, you will encounter a diverse range of MCQs that cover various aspects of Caching and Debugging, 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 Caching and Debugging. 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 Caching and Debugging. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Caching and Debugging MCQs | Page 3 of 11

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Q21.

Why shouldn't JavaScript functions not be too long?

User friendliness

Tie up event loops

Browser becomes unresponsive

All of the mentioned

Discuss

Answer: (d).All of the mentioned

Q22.

The object that looks to the thread that creates it is

Window

Worker

Element

Hash

Discuss

Answer: (b).Worker

Q23.

Which of the following is a global object for a new worker?

WorkerGlobalScope

Worker

WorkerScope

Window

Discuss

Answer: (a).WorkerGlobalScope

Q24.

Which will be invoked to create a new worker?

Function

Destructor

Constructor

Interface

Discuss

Answer: (c).Constructor

Q25.

What will happen if you specify an absolute URL in the Worker constructor?

Resolves itself

Must have the same origin

Must not have the same origin

None of the mentioned

Discuss

Answer: (b).Must have the same origin

Q26.

How can you send data using a Worker object?

postMessage()

sendMessage()

Message()

post()

Discuss

Answer: (a).postMessage()

Q27.

Which property is used to manage multiple event handlers?

onmessage

onerror

both onmessage and onerror

none of the mentioned

Discuss

Answer: (c).both onmessage and onerror

Q28.

Which is the function that allows a worker to terminate itself?

close()

exit()

terminate()

halt()

Discuss

Answer: (a).close()

Q29.

BLOB stands for

Binary Little Object

Binary Large Object

Broken Large Object

None of the mentioned

Discuss

Answer: (b).Binary Large Object

Q30.

The size of blobs are generally calculated in

Meters

Kilometers

Bytes

Pixels

Discuss

Answer: (c).Bytes

Page 3 of 11

Welcome to the Caching and Debugging MCQs Page

Caching and Debugging MCQs | Page 3 of 11

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

Invocation and Performance

JavaScript Animation

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