COP 2822: Fall Term 2003 On-Line Quizzes

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Tutorial Three:

Chapter 3 Quiz Masters:

Marcelle Bessman (mbessman@ju.edu) [Text Input]

John Taylor (jtaylor@hcc.cc.fl.us) [Consultant]

Multiple Choice [One Answer Only]
Please Note that this test was prepared for the first edition of the text and it may have errors. Please note all errors in the: I have discovered that...Section below.

Question 1

JavaScript variables contain a specific category of information, which called the variable's

a) data mode
b) data type
c) category
d) class

Question 2

Which of the following is not a JavaScript primitive data type?

a) Boolean
b) integer
c) array
d) string

Question 3

A programming language that requires the type of each variable to be declared is a(n)

a) object-oriented
b) static typed
c) loosely-typed
d) strongly-typed

Question 4

When defining variables in JavaScript,

a) you are not allowed to declare a data type.
b) you are required to declare a data type.
c) you can declare a data type if desired, but it is not mandatory.
d) the data type is determined by the variable name.

Question 5

The correct syntax for the JavaScript typed operator is

a) typeof.variablename();
b) typeof(variablename);
c) typeof_variablename;
d) typeof-(variablename);

Question 6

In JavaScript, a positive or negative number with no decimal places is a(n)

a) floating point number
b) real number
c) integer
d) whole number

Question 7

The data type that can only have a value of true, or false, is a(n)

a) binary
b) Boolean value
c) switch
d) toggle

Question 8

What is the result of the statement, myfield="";

a) A string variable is initialized as an empty string
b) JavaScript will report an error when it interprets the statement
c) A string variable is initialized to contain double quotation marks
d) none of the above

Question 9

A series of zero or more characters surrounded by single or double quotation marks is a(n)

a) array
b) byte map
c) string
d) structure

Question 10

In the statement, setField="My dog\'s name is Rex";, why does the backslash follow the g in dog?

a) It doesn't mean anything, it is probably a typo
b) It is supposed to be an escape character, but it should be a forward slash.
c) It is an escape character,telling JavaScript the following character is not terminating the string, but is a keyboard character
d) none of the above

Question 11

When an escape character is combined with some other character, it creates a(n)

a) escape function
b) escape string
c) string sequence
d) escape sequence

Question 12

A collection of variables referenced by a single variable name is a(n)

a) object
b) class
c) string
d) array

Question 13

Which of the following statements shows the proper way to initialize an array element?

a) array_value=[3]"John Smith";
b) array_value(3)="John Smith";
c) array_value3="John Smith";
d) array_value[3]="John Smith";

Question 14

The correct way to define an array is shown by which statement?

a) test_array=new Array(5)
b) test_array[5]=new Array
c) test_array(5)=new Array
d) test_array=new array{5}

Question 15

Which of the following statements shows the correct syntax to access the fifth element of an array?

a) arrayentry[5]
b) arrayentry[+5]
c) arrayentry[4]
d) arrayentry[+4]

Question 16

The data entries in an array are referred to as array

a) cells
b) elements
c) objects
d) slots

Question 17

Which statement shows the proper way to initialize multiple array entries in one program statement?

a) myArray=new Array("one";"two";"three";);
b) myArray=new Array("one":"two":"three":);
c) myArray=new Array("one","two","three");
d) myArray=new Array("one"),("two"),("three");

Question 18

A combination of literal values, operators, and variables that can be evaluated by a JavaScript interpreter to achieve some results is a(n)

a) formula
b) macro
c) expression
d) operand

Question 19

The variables and literals contained in an expression are called

a) operators
b) objects
c) statements
d) operands

Question 20

An equal sign (=), the plus sign (+) and the minus sign (-), are all examples of

a) expressions
b) operators
c) operands
d) qualifiers

Question 21

The operator type used for performing Boolean operations on Boolean operands is

a) Assignment
b) Comparison
c) Logical
d) Arithmetic

Question 22

An operator that requires a single operand either before or after the operator is a(n)

a) unary
b) binary
c) simple
d) stand alone

Question 23

Which of the statements below will return a string value of "45"?

a) x=4;y=5;value=x+y;
b) x=4;y="5";value=x+y;
c) x="four";y="five";value=x+y;
d) x="4";y="5";value=x+y;

Question 24

The increment (++) and the decrement (--)can be used as a prefix operator, or as a _______ operator.

a) suffix
b) postfix
c) trailing
d) none of the above

Question 25

The operators >=,<=,!=, are all examples of ________operators.

a) comparison
b) unary
c) logical
d) assignment

Question 26

What value would be assigned to myvalue in the expression, myvalue=10==20;?

a) 10
b) 20
c) true
d) false

Question 27

Which of the following statements will return a value of true if x=4 and y=5?

a) x<=y;
b) x!=y;
c) x<y;
d) all of the above

Question 28

The double ampersand operator represents the ________logical operator.

a) or
b) not
c) and
d) exclusive or

Question 29

In the expression, string1="my car is red,"+"and very fast";,the plus sign (+) is called a(n)

a) arithmetic
b) concatenation
c) logical
d) associative

Question 30

The _______function can be used to evaluate expressions contained within strings.

a) eval()
b) compare()
c) confirm()
d) strcompare()

True/False Questions

Question 31

HTML tags can be used within JavaScript strings, as long as the tag is inside the quotation marks of the string.