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Document Object Model And Event Handling MCQ question and answer in javascript with solution

Learn Document Object Model And Event Handling MCQ Questions and answers in javascript with easy and logical explanations. Document Object Model And Event Handling MCQ question in Javascript which provides all type of technical mcq questions which is important for technical exams, cumpus exams and other entrance examination Page-5 section-1

Each section contains 100 MCQs on Document Object Model and Event Handling .
41
The central object in a larger API is known as
Discuss
Answer & Solution
Answer: Option B
Solution:
The Document object does not stand alone, however. It is the central object in a larger API, known as the Document Object Model, or DOM, for representing and manipulating document content.
42
The paragraph “p” is a part of
Discuss
Answer & Solution
Answer: Option D
Solution:
The paragraph tag belongs to both html and body tags.
43
The node directly above a node is called
Discuss
Answer & Solution
Answer: Option C
Solution:
The node directly above a node is the parent of that node.
44
The Text and Comment is part of
Discuss
Answer & Solution
Answer: Option A
Solution:
The Text and Comment is part of the CharacterData Element.
45
The nodes that represent HTML elements are the
Discuss
Answer & Solution
Answer: Option D
Solution:
The nodes that represent HTML elements are Element nodes.
46
Which of the following is/are of Text nodes?
Discuss
Answer & Solution
Answer: Option C
Solution:
Both Text and Comment are basically strings of text, and these nodes are much like the Text nodes that represent the displaying text of a document.
47
Which is one of way to query a document for an element or elements?
Discuss
Answer & Solution
Answer: Option D
Solution:
he DOM defines a number of ways to select elements; you can query a document for an element or elements:
1. with a specified id attribute;
2. with a specified name attribute;
3. with the specified tag name;
4. with the specified CSS class or classes; or
5. matching the specified CSS selector
48
Which of the following can be used to select HTML elements based on the value of their name attributes?
Discuss
Answer & Solution
Answer: Option B
Solution:
To select HTML elements based on the value of their name attributes, you can use the getElementsByName() method of the Document object: 
var radiobuttons = document.getElementsByName("favorite_color");
49
Which of the following property refers to the root element of the document?
Discuss
Answer & Solution
Answer: Option A
Solution:
The documentElement property of the Document class refers to the root element of the document. This is always an HTML element.
50
The return type of getElementsByClassName() is
Discuss
Answer & Solution
Answer: Option D
Solution:
Like getElementsByTagName(), getElementsByClassName() can be invoked on both HTML documents and HTML elements, and it returns a live NodeList containing all matching descendants of the document or element.