Deck 2: Introduction to C++

Question 1

The expression 7 % 2 evaluates to

A)1
B)3.5
C)7.2
D)14
E)3

Answer 1

A

Question 2

A _ variable can hold only one of two values: true or false.

A)single precision
B)T/F
C)binary
D)bool
E)char

Answer 2

D

Question 3

A C++ character constant (character literal)is enclosed in quotation marks, whereas a string constant (string literal)is enclosed in quotation marks.

A)open, closed
B)triple, double
C)double, single
D)no, some
E)single, double

Answer 3

E

Question 4

A _ is used to mark the end of a complete C++ programming statement.

A)closing brace
B)new line
C)period
D)semicolon
E)comment

Question 5

The is used to display information on the computer's screen.

A)output object
B)cout object
C)< symbol
D)print object
E)cin object

Question 6

Which of the following is/are valid C++ identifiers?

A)June.2010
B)June-2010
C)June_2010
D)2010June
E)Both C and D are valid identifiers, but A and B are not.

Question 7

C++ automatically places at the end of a string constant (string literal).

A)quotation marks
B)a semicolon
C)a newline escape sequence
D)a blank
E)the null terminator

Question 8

The numeric data types in C++ are broken into two categories:

A)integer and floating- point.
B)long and short.
C)real and unreal.
D)numbers and characters.
E)singles and doubles.

Question 9

What literal(s)appear in the following C++ statement? int number = 4 + 8;

A)12
B)4
C)8
D)number
E)both B and C

Question 10

Which of the following will cause the next output to begin on a new line?

A)cout << "/n";
B)cout << "endl";
C)cout << endl;
D)all of the above
E)A and C, but not B

Question 11

Which of the following will cause the next output to begin on a new line?

A)cout << endl;
B)cout << "endl";
C)cout << "/n";
D)all of the above
E)A and C, but not B

Question 12

A variable must be defined

A)and initialized at the same time.
B)in every program.
C)in order to perform output.
D)before it can be used.
E)in all of the above cases.

Question 13

The expression 5 / 2 evaluates to

A)1
B)2
C)2.5
D)5.2
E)10

Question 14

Every C++ program must have

A)variables.
B)literals.
C)comments.
D)a function called main..
E)all of the above.

Question 15

data types are used to define variables that can hold real numbers.

A)Floating- point
B)Real
C)String
D)Integer
E)Long

Question 16

What value will be assigned to the variable number by the following statement?
A)7

A)8
B)^7.8
B)None of the above.
C)It's unpredictable. That's the problem.

Question 17

Which of the following keywords is/are the names of C++ data types?

A)double
B)long
C)short
D)bool
E)All of the above

Question 18

What value will be assigned to the variable number by the following statement? int number = 3.75;
A)4

A)None of the above.
B)3
B)It's unpredictable. That's the problem.
C)^3.75

Question 19

In programming terms, a group of characters inside a set of double quotation marks (" ")is called

A)a character literal.
B)a string constant.
C)a string literal.
D)all of the above.
E)either B or C, but not A.

Question 20

#include is an example of a(n)

A)comment.
B)compiler option.
C)preprocessor directive.
D)I/O statement.
E)stream directive.

Question 21

The following is a legal C++ statement to define and initialize a variable.
char firstName = "Jack";

Question 22

The bool data type

A)has only two values: true and false.
B)can be used to store a single character.
C)is used to store extra large numbers.
D)is used to represent numbers in E notation.
E)does none of the above.

Question 23

Which of the following is/are valid C++ identifiers?

A)department_9
B)aVeryLongVariableName
C)last-name
D)All of the above are valid identifiers.
E)Both A and B are valid identifiers, but C is not.

Question 24

C++ is a case- sensitive language.

Question 25

A variable of the char data type can hold a set of characters like "January".

Question 26

The following two C++ statements perform the same operation.
regWages = regPay + overTime; regPay + overTime = regWages;

Question 27

The following statements both declare the variable num to be an integer.
int num; INT num;

Question 28

In a C++ program, two slash marks ( // )indicate the beginning of

A)a program.
B)a comment.
C)a variable definition.
D)a block of code.
E)none of the above.

Question 29

You must have a(n)for every variable you include in a program.

A)numeric value
B)output statement
C)comment
D)purpose
E)definition

Question 30

An escape sequence must start with a forward slash (/).

Question 31

Variables represent storage locations in the computer's memory.

Question 32

must be included in a program in order to use the cout object.

A)Strings
B)A cout declaration
C)Opening and closing braces
D)The iostream header file
E)None of the above

Question 33

If number has been defined as an int variable, both of the following statements will print out its value:
cout << number; cout << "number";

Question 34

An operation that copies a value into a variable is called a(n)operation.

A)copy
B)cout
C)assignment
D)equals
E)declaration

Question 35

The directive causes the contents of another file to be inserted into a program.

A)#getfile
B)#insert
C)#library
D)#include
E)none of the above

Question 36

are data items whose values cannot change while the program is running.

A)Literals
B)Variables
C)Integers
D)Fixed data
E)None of the above

Question 37

The following two statements could be used interchangeably in a C++ program.
// Program Payroll
/* Program Payroll */

Question 38

The expression 5 % 2 evaluates to

A)1
B)2
C)2.5
D)5.2
E)10

Question 39

The expression 7 / 2 evaluates to

A)7.2
B)14
C)1
D)3.5
E)3

Question 40

The following two statements both assign the value 5 to the variable dept.
5 = dept; dept = 5;