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 4 of 9

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Basics of JavaScript

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Graphics and Rendering

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Performance Measures in JavaScript

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Socket Programming with JavaScript

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Parsing, Benchmarking and Logging

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Caching and Debugging

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JavaScript Animation

Q31.

How many properties are available in a memory object?

Discuss

Answer: (c).3

Q32.

What is a heap in JavaScript?

Collection of Java objects

Collection of JavaScript objects

Collection of memory usage values

Collection of data stored in memory

Discuss

Answer: (b).Collection of JavaScript objects

Q33.

What is the function of the memory object?

Gets unused memory details

Shows optimization

Gets memory usage

None of the mentioned

Discuss

Answer: (c).Gets memory usage

Q34.

What is the command to access the Heap size limit?

performance.memory. SizeLimit

performance.memory. jsHeapSizeLimit

jsHeapSizeLimit

performance.jsHeapSizeLimit

Discuss

Answer: (b).performance.memory. jsHeapSizeLimit

Q35.

What is the purpose of garbage collection?

Removes object with many reference

Removes object with reference

Removes object with invalid reference

Removes object with no reference

Discuss

Answer: (d).Removes object with no reference

Q36.

What does the usedJsHeapSize property indicate?

Amount of memory used

Amount of memory unused

Amount of memory used & unused

None of the mentioned

Discuss

Answer: (a).Amount of memory used

Q37.

Which of the following property indicate the total size of heap?

heapSize

totalHeapSize

totalJsHeapSize

totalHeap

Discuss

Answer: (c).totalJsHeapSize

Q38.

What can be done to monitor the memory usage?

Profiling

Sequencing

Serializing

None of the mentioned

Discuss

Answer: (a).Profiling

Q39.

Which of the following gives the high level breakdown of memory usage?

about:memory

memory

about-memory

about::memory

Discuss

Answer: (a).about:memory

Q40.

Which keyword must be used to get a more granular insight of the memory usage?

verb

verbose

granule

none of the mentioned

Discuss

Answer: (b).verbose

Page 4 of 9

Welcome to the Invocation and Performance MCQs Page

Invocation and Performance MCQs | Page 4 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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