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Welcome to the Performance Measures in JavaScript MCQs Page

Dive deep into the fascinating world of Performance Measures in JavaScript with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Performance Measures in JavaScript, a crucial aspect of JavaScript. In this section, you will encounter a diverse range of MCQs that cover various aspects of Performance Measures in JavaScript, 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.

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Check out the MCQs below to embark on an enriching journey through Performance Measures in JavaScript. 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 Performance Measures in JavaScript. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Performance Measures in JavaScript MCQs | Page 2 of 7

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Q11.
How can we define the term Performance?

a.

Speed of the input take in

b.

Speed of the output display

c.

Speed at which application functions

d.

None of the mentioned

Discuss
Answer: (c).Speed at which application functions
Q12.
When is an application said to show a web performance?

a.

Time to respond

b.

Time to load

c.

Time to send a request

d.

All of the mentioned

Discuss
Answer: (b).Time to load
Q13.
When is an application said to show a runtime performance?

a.

Speed of response to user

b.

Speed of user request

c.

All of the mentioned

d.

None of the mentioned

Discuss
Answer: (a).Speed of response to user
Q14.
What does the span of time waiting for the page to be useful depend on?

a.

Runtime performance

b.

Web performance

c.

Speed

d.

None of the mentioned

Discuss
Answer: (b).Web performance
Q15.
In order to skip or seek to a desired location in a sound or video, which property becomes helpful?

a.

audioSkip

b.

currentTime

c.

videoSkip

d.

skiptoTime

Discuss
Answer: (b).currentTime
Q16.
Which of following shows a better runtime performance for coalescing functionality, using functions, and using objects?

a.

Firefox unwoundfun

b.

Firefox UsingFunct

c.

Firefox UsingObject

d.

None of the mentioned

Discuss
Answer: (b).Firefox UsingFunct
Q17.
Which of following shows a poorer runtime performance for coalescing functionality, using functions, and using objects?

a.

Firefox unwoundfun

b.

Firefox UsingFunct

c.

Firefox UsingObject

d.

None of the mentioned

Discuss
Answer: (a).Firefox unwoundfun
Q18.
In how many modes can the Closure compiler be run?

a.

2

b.

3

c.

4

d.

5

Discuss
Answer: (a).2
Q19.
What is the purpose of the advanced mode in the Closure compiler?

a.

Removing the variables and other parameters

b.

Renaming the variables and other parameters

c.

Slight alteration to improve the runtime performance

d.

None of the mentioned

Discuss
Answer: (b).Renaming the variables and other parameters
Q20.
Firebug is an extension of which browser?

a.

Mozilla

b.

Chrome

c.

IE

d.

Opera

Discuss
Answer: (a).Mozilla
Page 2 of 7

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