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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 3 of 9

Q21.
How many read-only attributes are present in the navigator object?

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (b).2
Discuss
Answer: (b).Complete roundtrip absent
Q23.
Where does the DNS reply go to in a single HTTP redirect?
Discuss
Answer: (a).Browser
Discuss
Answer: (b).performance.navigation.redirectCount
Q25.
How many constant values can the property type be represented?

a.

2

b.

3

c.

4

d.

5

Discuss
Answer: (c).4
Q26.
Which of the following constants has the value 255?
Discuss
Answer: (d).TYPE_RESERVED
Q27.
What is the purpose of the constant TYPE_RELOAD?
Discuss
Answer: (a).Reload performed
Discuss
Answer: (a).Navigation via browser history
Q29.
Which of the following constants hold the value 2?
Discuss
Answer: (c).TYPE_BACK_FORWARD
Q30.
Where does the DNS Lookup direct to ?
Discuss
Answer: (d).DNS Server
Page 3 of 9

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