Javascript (JS) DOM MCQ

This section focuses on the "Javascript DOM" of the Javascript. These Multiple Choice Questions (mcq) should be practiced to improve the Javascript skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

1. What among the following is an appropriate event handler for input text among the below options ?

A. onclick
B. onchange
C. onkeyup
D. onblur

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2. What among the following is an appropriate when an event occurs when the user clicks on an element?

A. onclick
B. onchange
C. onkeyup
D. onblur

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3. Consider the below code:
Identify the correct code in order to fetch the value entered in username text field?
< body>
< form name="register">
Enter username < input value="John" id="name" name="username">
< /form>
< /body>

A. document.register.name.value
B. document.getElementById ("name").value
C. document.getElementByName ("name").value
D. None of the above

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4. Consider the below code:
Identify the correct code in order to fetch the value entered in username text field?
< body>
< form name="login">
Enter Your Name< input value="Akash" id="p_name" name="uname">
< /form>
< /body>

A. document.login.uname.value
B. document.getElementById ("p_name").value
C. document.getElementByName ("name").value
D. Both A and B

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5. Which of the following statements is/are TRUE about DOM?

A. W3C standard
B. Each page can have multiple Document objects
C. form elements can be accessed using the form object
D. Both A and C

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6. What is the full form DOM?

A. Document Object Model
B. Document Onhalt Model
C. Document Oriented Model
D. Document Oriented Management

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7. What is the purpose of the Legacy DOM?

A. Modify the nodes
B. Making the script modular
C. Allows access to few keys and elements
D. Makes the scripting easier

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8. What is the purpose of the NamedNodeMap object?

A. Unordered collection of arrays
B. Unordered collection of elements
C. Unordered collection of nodes
D. Unordered collection of attributes

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9. Which object is the top of the hierarchy?

A. Form Control Elements
B. Document Object
C. Form Object
D. Window Object

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10.  How are the objects organized in the HTML DOM?

A. list
B. stack
C. queue
D. Hierarchy

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