JavaScript Test UPDATED ACTUAL Exam
Questions and CORRECT Answers
6.1 In the following line the word document is a(n) ______ that resides in the computer's
memory.
document.writeln("Hello World");
a) attribute
b) behavior
c) object
d) method - CORRECT ANSWER - c) Object
6.2 In the following line, the word writeln is a(n) _________ that performs a task or action in the
script.
document.writeln("Hello World");
a) structure
b) collection
c) object
d) method - CORRECT ANSWER - d) Method
6.3 Consider the following HTML5 code.
<html>
<script type = "text/javascript">
<!--
<!-- document.writeln("Hello World"); -->
//-->
</script>
</html>
What would a browser capable of scripting display when executing this code?
,a) document.writeln("Hello World");
b) nothing
c) Hello World
d) <html>
<script type = "text/javascript">
<!--
<!-- document.writeln("Hello World </p>");
//-->
</script>
</html> - CORRECT ANSWER - b) Nothing
6.4 Which of the following statements would correctly print out the sentence "Hello World" in
blue?
a) document.write( "<p style = \"color: blue\");
document.write( "Hello World >");
b) document.write( "<p> style = \"color: blue\" Hello World </p>);
c) document.write( "<p style = \"color: blue\" Hello World + "</p>");
d) document.write( "<p style = \"color: blue\">");
document.write( "Hello World </p>"); - CORRECT ANSWER - d) document.write( "<p
style = \"color: blue\">");
document.write( "Hello World </p>");
6.5 An alert dialog displaying the text "Welcome!" is created by calling _________.
a) window.alert( "Welcome!" );
b) alert.window( "Welcome!" );
c) window( "alert = \"Welcome!\"" );
d) window( "<alert> Welcome! </alert>" ); - CORRECT ANSWER - a) window.alert(
"Welcome!" );
,6.6 Consider the following script. What is wrong with the following code?
<script type = "text/javascript">
var firstNumber;
thirdNumber;
firstNumber = window.prompt("Enter an integer", "0");
secondNumber = window.prompt("Enter an integer", "0");
thirdNumber = firstNumber + secondNumber;
</script>
a) thirdNumber in line 7 must be in quotes.
b) The words Enter an integer in line 6 should not be in quotes.
c) The word thirdnumber in line 3 should have a comma after it.
d) The word var must be placed before thirdNumber in line 3. - CORRECT ANSWER - d)
The word var must be placed before thirdNumber in line 3.
6.7 Which of the following is not a valid variable name?
a) Tax1
b) eightball_8
c) 12footage
d) pageNumber1200 - CORRECT ANSWER - c) 12footage
6.8 What will the browser display if the following script is executed and the user enters 5 at both
prompts?
<script type = "text/javascript">
<!--
var firstNumber = window.prompt( "Enter an integer", "0" );
var secondNumber= window.prompt( "Enter an integer", "0" );
var thirdNumber;
, thirdNumber = firstNumber + secondNumber;
document.write( thirdNumber );
//-->
</script>
a) nothing
b) 0
c) 10
d) 55 - CORRECT ANSWER - d) 55
6.9 Whenever a value is placed in a memory location, the value________.
a) cannot be added if a value already exists
b) can share a location in memory with another value
c) replaces the previous value in that location
d) will be assigned to another identifier if a value already exists - CORRECT ANSWER -
c) replaces the previous value in that location
6.10 What is the result of the statement 17 % 5?
a) 0
b) 2
c) 3
d) 12 - CORRECT ANSWER - b) 2
6.11 Which of the following sequences does not follow the rules of operator precedence?
Assume that operators are evaluated in the order listed from left to right.
a) multiplication, division, addition
b) parentheses, subtraction, modulus
c) division, multiplication, addition
Questions and CORRECT Answers
6.1 In the following line the word document is a(n) ______ that resides in the computer's
memory.
document.writeln("Hello World");
a) attribute
b) behavior
c) object
d) method - CORRECT ANSWER - c) Object
6.2 In the following line, the word writeln is a(n) _________ that performs a task or action in the
script.
document.writeln("Hello World");
a) structure
b) collection
c) object
d) method - CORRECT ANSWER - d) Method
6.3 Consider the following HTML5 code.
<html>
<script type = "text/javascript">
<!--
<!-- document.writeln("Hello World"); -->
//-->
</script>
</html>
What would a browser capable of scripting display when executing this code?
,a) document.writeln("Hello World");
b) nothing
c) Hello World
d) <html>
<script type = "text/javascript">
<!--
<!-- document.writeln("Hello World </p>");
//-->
</script>
</html> - CORRECT ANSWER - b) Nothing
6.4 Which of the following statements would correctly print out the sentence "Hello World" in
blue?
a) document.write( "<p style = \"color: blue\");
document.write( "Hello World >");
b) document.write( "<p> style = \"color: blue\" Hello World </p>);
c) document.write( "<p style = \"color: blue\" Hello World + "</p>");
d) document.write( "<p style = \"color: blue\">");
document.write( "Hello World </p>"); - CORRECT ANSWER - d) document.write( "<p
style = \"color: blue\">");
document.write( "Hello World </p>");
6.5 An alert dialog displaying the text "Welcome!" is created by calling _________.
a) window.alert( "Welcome!" );
b) alert.window( "Welcome!" );
c) window( "alert = \"Welcome!\"" );
d) window( "<alert> Welcome! </alert>" ); - CORRECT ANSWER - a) window.alert(
"Welcome!" );
,6.6 Consider the following script. What is wrong with the following code?
<script type = "text/javascript">
var firstNumber;
thirdNumber;
firstNumber = window.prompt("Enter an integer", "0");
secondNumber = window.prompt("Enter an integer", "0");
thirdNumber = firstNumber + secondNumber;
</script>
a) thirdNumber in line 7 must be in quotes.
b) The words Enter an integer in line 6 should not be in quotes.
c) The word thirdnumber in line 3 should have a comma after it.
d) The word var must be placed before thirdNumber in line 3. - CORRECT ANSWER - d)
The word var must be placed before thirdNumber in line 3.
6.7 Which of the following is not a valid variable name?
a) Tax1
b) eightball_8
c) 12footage
d) pageNumber1200 - CORRECT ANSWER - c) 12footage
6.8 What will the browser display if the following script is executed and the user enters 5 at both
prompts?
<script type = "text/javascript">
<!--
var firstNumber = window.prompt( "Enter an integer", "0" );
var secondNumber= window.prompt( "Enter an integer", "0" );
var thirdNumber;
, thirdNumber = firstNumber + secondNumber;
document.write( thirdNumber );
//-->
</script>
a) nothing
b) 0
c) 10
d) 55 - CORRECT ANSWER - d) 55
6.9 Whenever a value is placed in a memory location, the value________.
a) cannot be added if a value already exists
b) can share a location in memory with another value
c) replaces the previous value in that location
d) will be assigned to another identifier if a value already exists - CORRECT ANSWER -
c) replaces the previous value in that location
6.10 What is the result of the statement 17 % 5?
a) 0
b) 2
c) 3
d) 12 - CORRECT ANSWER - b) 2
6.11 Which of the following sequences does not follow the rules of operator precedence?
Assume that operators are evaluated in the order listed from left to right.
a) multiplication, division, addition
b) parentheses, subtraction, modulus
c) division, multiplication, addition
