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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.

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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 1 of 9

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Q1.
Which of the following property gives access to the JavaScript memory usage data?

a.

performance.memory

b.

memory(performance)

c.

performance(memory)

d.

none of the mentioned

Discuss
Answer: (a).performance.memory
Q2.
What is the purpose of the timing property in the window.performance object?

a.

Time of navigation event

b.

Time of page load event

c.

Time of navigation and page load event

d.

None of the mentioned

Discuss
Answer: (c).Time of navigation and page load event
Q3.
Which of the following property is associated with the Response event?

a.

responseStart

b.

responseEnd

c.

both responseStart and responseEnd

d.

none of the mentioned

Discuss
Answer: (c).both responseStart and responseEnd
Q4.
Which of the following computation is correct to calculate the time taken for page load once the page is received from the server?

a.

responseEnd-loadEventEnd

b.

loadEventEnd-responseEnd

c.

loadEventEnd/responseEnd

d.

responseEnd/loadEventEnd

Discuss
Answer: (b).loadEventEnd-responseEnd
Q5.
Which of the following property is associated with the Processing event?

a.

domComplete

b.

domContentLoaded

c.

domInteractive

d.

none of the mentioned

Discuss
Answer: (d).none of the mentioned
Q6.
What does it indicate when the type attribute of the navigation object is set to 2?

a.

Navigation by moving back through history

b.

Navigation by moving forward through history

c.

Navigation by moving back & forward through history

d.

None of the mentioned

Discuss
Answer: (c).Navigation by moving back & forward through history
Q7.
What does the method Performance.now() return?

a.

DOMTimeStamp

b.

DOMHighResTimeStamp

c.

DOMStamp

d.

TimeStamp

Discuss
Answer: (b).DOMHighResTimeStamp
Q8.
Which of the following is a read-only property?

a.

PerformanceTiming.navigationStart

b.

PerformanceTiming.fetchStart

c.

PerformanceTiming.navigationStart & PerformanceTiming.fetchStart

d.

None of the mentioned

Discuss
Answer: (c).PerformanceTiming.navigationStart & PerformanceTiming.fetchStart
Q9.
Which of the following is an interface?

a.

Time

b.

Timing

c.

Performance

d.

PerformanceTiming

Discuss
Answer: (d).PerformanceTiming
Q10.
How many properties are associated with the Response event?

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (b).2
Page 1 of 9

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