Explore topic-wise MCQs in Javascript.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Javascript knowledge and support exam preparation. Choose a topic below to get started.

1.

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
Answer» E.
Discussion
2.

Which function is used to start the time logging?

A. startTimeLogging()
B. start()
C. Loggingstart()
D. startLogging()
Answer» B. start()
Discussion
3.

Where does the external process save the result of the test?

A. Normal file
B. Flat file
C. Folder
D. None of the mentioned
Answer» C. Folder
Discussion
4.

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
Answer» D. None of the mentioned
Discussion
5.

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
Answer» D. None of the mentioned
Discussion
6.

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
Answer» C. Start time/ End time
Discussion
7.

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
Answer» D. None of the mentioned
Discussion
8.

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
Answer» B. Observing never influences outcome
Discussion
9.

How many default number methods are available in JavaScript?

A. 5
B. 6
C. 7
D. 8
Answer» D. 8
Discussion