Question 1 The objects in the BOM for any given web page depend on the contents

Question

Question 1

The objects in the BOM for any given web page depend on the contents of the page.?3?

True

False

2.46 points

Question 2

Internet Explorer 8 does not support the textContent property

True

False

2.46 points

Question 3

The top-level object in the browser object model is the Window object, which represents a web browser window.

True

False

2.46 points

Question 4

Syntax refers to the order in which various parts of a program run, or execute.?3?

True

False

2.46 points

Question 5

You log values to the console using the window.alert() method.?3?

True

False

2.46 points

Question 6

An if statement keeps repeating until its conditional expression evaluates to false

True

False

2.46 points

Question 7

A break statement restarts a loop with a new iteration

True

False

2.46 points

Question 8

The ________ event fires when a form is submitted.

Clear

Blur

Submit

Input

2.46 points

Question 9

Validation errors found by modern browsers are reported in

the Address bar

bubbles

the Status bar

separate browsers windows

2.46 points

Question 10

In modern browsers, which attribute of an input element prevents the form from being submitted if the field is left blank

min

required

novalidate

max

2.46 points

Question 11

You can use the CSS ____ pseudo-classes to change the properties of form elements based on their validity status.?

:submit and :reset

:before and :after

:hover and :blur

:invalid and :valid

2.46 points

Question 12

When a control's value is found to be invalid during constraint validation, the ____ event is triggered.?

change

focus

invalid

input

2.46 points

Question 13

Instead of document.getElementsByTagName("form")[0], you could use the code?

document.getFormElements[0]

document.forms[0]

document.forms.form[0]

document.form[0]

2.46 points

Question 14

Enhancements to HTML and to modern browsers have allowed browsers themselves to perform many validation tasks without any extra JavaScript. This type of validation is known as __________ validation

Bad

Native

Code-based

HTML4

2.46 points

Question 15

To check a group of fields and trigger an error message if any of them is empty, you use a(n) ____ statement.?

loop

console.log()

submit

debugger

2.46 points

Question 16

Which attribute toggles off validation of a form when added to the opening <form> tag?

submit

novalidate

validation

nosubmit

2.46 points

Question 17

You create an empty document fragment using the ____ method.?

cloneNode()

submit()

createDocumentFragment()

createElement()

2.46 points

Question 18

The ____ method is used in JavaScript to execute code after a specific amount of time has elapsed.

setTimeout()

startTimeout()

clearTimeout()

clearInterval()

2.46 points

Question 19

The ____ method repeatedly executes the same code after being called only once.

loadInterval()

clearInterval()

setInterval()

startInterval()

2.46 points

Question 20

The ____ method repeatedly executes the same code after being called only once

cancelTimeout()

stopTimeout()

clearTimeout()

clearInterval()

2.46 points

Question 21

In order to make a window the active window, you use the ____ method of the Window object.

open()

focus()

set()

active()

2.46 points

Question 22

Which method returns a single element?

querySelector()

querySelectorAll()

getElementsByClassName()

getElementsByTagName()

2.46 points

Question 23

The ____ object allows you to change to a new web page from within JavaScript code.

Future

Navigator

Location

History

2.46 points

Question 24

The ____ object is used to obtain information about the current web browser.

Navigator

Location

Browser

History

2.46 points

Question 25

Which method does NOT return a node list or HTML collection??3?

getElementsByClassName()

getElementById()

getElementsByName()

getElementsByTagName()

2.46 points

Question 26

Which is the correct way to reference the CSS font-family property in JavaScript when using dot notation?

fontfamily

font-family

fontFamily

font.family

2.46 points

Question 27

Which method returns all elements in a document that match the selector p figure img?

querySelector("p figure img")

getElementsByTagName("p figure img")

querySelectorAll("p figure img")

getElementsByName("p figure img")

2.46 points

Question 28

Which method returns all h1 elements in a document?

getElementsByTagName("h1")

getElementsByClassName("h1")

getElementsByName("h1")

getElementById("h1")

2.46 points

Question 29

A ____ error is a flaw in a program

a.

Clear

b.

Blur

c.

Submit

d.

Input

Explanation / Answer

Answer 1:

BOM means Browser Object Model. The Browser Object Model contains all the objects of the web browser itself.

It has no specific standard for implementation and definition.

It does not contain the objects that support the webpage.

Hence, the option False is correct.

Answer 2:

Answer 3:

The top level object in the browser model is called a Window.

The top level objects contain the properties, methods and appropriate objects.

The Window property has self-contained properties like status which provide access to the browser.

The navigation to other window or URL’s is possible using Window.

Hence, the correct answer is true.

Answer 4:

Every programming language has some specific rules called syntax.

The syntax depends upon the programming language the user is using.

Hence, the correct answer is False.

Answer 5:

The window.alert() method is used to display the javascript possibilities.

The method writes into an alert box and then displays the output.

Hence, the correct answer is true.

Answer 6:

if statement is a conditional statement.

It evaluates the expression and the condition results true it executes the statement of the if block.

The execution of block does not repeat until the condition becomes false.

Hence, the correct answer is false.

Answer 7:

A break statement is used to terminate the loop when the statement is inside the loop.

The immediate statement following the loop is executed.

Hence, the correct answer is False.

Answer 8:

When the form is submitted it is handled by a .submit event. Thus, the .submit event is fired when a form is submitted.

Hence, the correct option is c.

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