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Welcome to the Parsing, Benchmarking and Logging MCQs Page

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

Parsing, Benchmarking and Logging MCQs | Page 4 of 7

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Q31.
How many default number methods are available in JavaScript?

a.

5

b.

6

c.

7

d.

8

Discuss
Answer: (c).7
Q32.
What is an observer effect?

a.

Observing influences outcome

b.

Observing never influences outcome

c.

Obversing and outcome are independent

d.

None of the mentioned

Discuss
Answer: (a).Observing influences outcome
Q33.
Which of the following are ways to benchmark code?

a.

Timing the code

b.

Calculating the number of operations performed

c.

Timing the code & Calculating the number of operations performed

d.

None of the mentioned

Discuss
Answer: (c).Timing the code & Calculating the number of operations performed
Q34.
How to calculate the run time of a code?

a.

Start time - End time

b.

End time - Start time

c.

Start time/ End time

d.

Start time * End time

Discuss
Answer: (b).End time - Start time
Q35.
According to the workflow of a runtime logging, what happens after calculating the run time?

a.

Display to screen

b.

Log to server

c.

Either Display to screen or Log to server

d.

None of the mentioned

Discuss
Answer: (c).Either Display to screen or Log to server
Q36.
Which of the following object is used to post the data to an external process, say savePerfData?

a.

XML

b.

XBT

c.

XHR

d.

None of the mentioned

Discuss
Answer: (c).XHR
Q37.
Where does the external process save the result of the test?

a.

Normal file

b.

Flat file

c.

Folder

d.

None of the mentioned

Discuss
Answer: (b).Flat file
Q38.
Which function is used to start the time logging?

a.

startTimeLogging()

b.

start()

c.

Loggingstart()

d.

startLogging()

Discuss
Answer: (a).startTimeLogging()
Q39.
Which of the following attribute of form tag is not set by using document object in JavaScript?

a.

Target

b.

Enctype

c.

Action

d.

None of the mentioned

Discuss
Answer: (d).None of the mentioned
Q40.
What type of scooping is present in JavaScript?

a.

Lexical

b.

Literal

c.

Both Lexical and Literal

d.

None of the mentioned

Discuss
Answer: (a).Lexical
Page 4 of 7

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