Deck 2: Introduction to C Plus Plus

Question 1

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

A)Opening and closing braces
B)Opening and closing quotation marks
C)cout object
D)Backslash
E)None of the above

Answer 1

cout object

Question 2

Which escape sequence causes the cursor to move to the beginning of the current line?

A)\n
B)\t
C)\a
D)\b
E)\r

Answer 2

\r

Question 3

What is the modulus operator?

A)+
B)*
C)&
D)%
E)

Answer 3

%

Question 4

You must have a ________ for every variable you intend to use in a program.

A)purpose
B)definition
C)comment
D)constant
E)None of the above

Question 5

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

A)Pound Sign
B)Semicolon
C)Data type
D)Void
E)None of the above

Question 6

Which data type typically requires only one byte of storage?

A)short
B)int
C)float
D)char
E)double

Question 7

These are data items whose values do not change while the program is running.

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

Question 8

Which character signifies the beginning of an escape sequence?

A)//
B)/
C)\
D)#
E){

Question 9

________ represent storage locations in the computer's memory.

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

Question 10

In a C++ program, two slash marks ( // )indicate:

A)The end of a statement
B)The beginning of a comment
C)The end of the program
D)The beginning of a block of code
E)None of the above

Question 11

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

A)String literal
B)Variable
C)Operation
D)Statement
E)None of the above

Question 12

Besides decimal, two other number systems you might encounter in C++ programs are:

A)Octal and Fractal
B)Hexadecimal and Octal
C)Unary and Quaternary
D)Base 7 and Base 9
E)None of the above

Question 13

In memory, C++ automatically places a ________ at the end of string literals.

A)Semicolon
B)Quotation marks
C)Null terminator
D)Newline escape sequence
E)None of the above

Question 14

A statement that starts with a # symbol is called a:

A)Comment
B)Function
C)Preprocessor directive
D)Key word
E)None of the above

Question 15

A character literal is enclosed in ________ quotation marks, whereas a string literal is enclosed in ________ quotation marks.

A)double, single
B)triple, double
C)open, closed
D)single, double
E)None of the above

Question 16

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

A)Backslash
B)Pound sign
C)Semicolon
D)#include directive
E)None of the above

Question 17

For every opening brace in a C++ program, there must be a:

A)String literal
B)Function
C)Variable
D)Closing brace
E)None of the above

Question 18

Of the following, which is a valid C++ identifier?

A)June1997
B)_employee_number
C)___department
D)myExtraLongVariableName
E)All of the above are valid identifiers.

Question 19

The numeric data types in C++ can be broken into two general categories:

A)numbers and characters
B)singles and doubles
C)integer and floating point
D)real and unreal
E)None of the above

Question 20

What is the output of the following statement?
Cout << 4 * (15 / (1 + 3))<< endl;

A)15
B)12
C)63
D)72
E)None of these

Question 21

Which one of the following would be an illegal variable name?

A)dayOfWeek
B)3dGraph
C)_employee_num
D)June1997
E)itemsorderedforthemonth

Question 22

Every complete C++ program must have a ________.

A)comment
B)function named main
C)preprocessor directive
D)symbolic constant
E)cout statement

Question 23

What will the following code display?

A)
B)
C)
D)

Question 24

This control sequence is used to skip over to the next horizontal tab stop.

A)\n
B)\h
C)\t
D)\a
E)\'

Question 25

This function in C++ allows you to identify how many bytes of storage on your computer system an integer data value requires.

A)len
B)bytes
C)f(x)
D)int
E)sizeof

Question 26

Character constants in C++ are always enclosed in ________.

A)[brackets]
B)"double quotation marks"
C)'single quotation marks'
D){braces}
E)(parentheses)

Question 27

What is the value of cookies after the execution of the following statements?
Int number = 38, children = 4, cookies;
Cookies = number % children;

A)2
B)0
C)9
D).5
E)None of these

Question 28

If you use a C++ key word as an identifier, your program will:

A)Execute with unpredictable results
B)not compile
C)understand the difference and run without problems
D)Compile, link, but not execute
E)None of the above

Question 29

What will the following code display?

A)
B)
C)
D)

Question 30

What will the following code display?

A)
B)
C)
D)

Question 31

________ must be included in any program that uses the cout object.

A)Opening and closing braces
B)The header file iostream
C)Comments
D)Escape sequences
E)None of the above

Question 32

Look at the following program and answer the question that follows it.
Which line(s) in this program cause output to be displayed on the screen?

A)13 and 14
B)8 and 9
C)14
D)13
E)15

Question 33

These are used to declare variables that can hold real numbers.

A)Integer data types
B)Real data types
C)Floating point data types
D)Long data types
E)None of the above

Question 34

What will the following code display?

A)
B)
C)
D)

Question 35

What will the following code display?

A)The number is 7
B)The number is number
C)The number is7
D)The number is 0

Question 36

The float data type is considered ________ precision, and the double data type is considered ________ precision.

A)single, double
B)float, double
C)integer, double
D)short, long
E)None of the above

Question 37

A variable whose value can be either true or false is of this data type.

A)binary
B)bool
C)T/F
D)float
E)None of the above

Question 38

A variable's ________ is the part of the program that has access to the variable.

A)data type
B)value
C)scope
D)reach
E)None of the above

Question 39

Which of the following correctly consolidates the following declaration statements into one statement?
Int x = 7;
Int y = 16;
Int z = 28;

A)int x = 7; y = 16; z = 28;
B)int x = 7   y = 16   z = 28;
C)int x, y, z = 7, 16, 28
D)int x = 7, y = 16, z = 28;
E)None of these will work.

Question 40

Which of the following defines a double-precision floating point variable named payCheck?

A)float payCheck;
B)double payCheck;
C)payCheck double;
D)Double payCheck;

Question 41

What will the following code display?

A)
B)
C)
D)

Question 42

If you do not follow a consistent programming style, your programs will generate compiler errors.

Question 43

Assuming you are using a system with 1-byte characters, how many bytes of memory will the following string literal occupy?
"William"

A)7
B)14
C)8
D)1

Question 44

The first step in using the string class is to #include the ________ header file.

A)iostream
B)cctype
C)cmath
D)string
E)None of the above

Question 45

C++ does not have a built in data type for storing strings of characters.

Question 46

When typing in your source code into the computer, you must be very careful since most of your C++ instructions, header files, and variable names are case sensitive.

Question 47

A variable called "average" should be declared as an integer data type because it will probably hold data that contains decimal places.

Question 48

What will the value of x be after the following statements execute?
Int x;
X = 18 / 4;

A)4.5
B)4
C)0
D)unknown

Question 49

Floating point constants are normally stored in memory as doubles.

Question 50

The C++ language requires that you give variables names that indicate what the variables are used for.

Question 51

Assume that a program has the following string object definition: string name;
Which of the following statements correctly assigns a string literal to the string object?

A)name = Jane;
B)name = "Jane";
C)name = 'Jane';
D)name = (Jane);

Question 52

When writing long integer literals or long long integer literals in C++ 11, you can use either an uppercase or lowercase L.

Question 53

Escape sequences are always stored internally as a single character.

Question 54

In C++ 11, if you want an integer literal to be treated as a long long int, you can append ________ at the end of the number.

A)L
B)
C)I
D)LL
E)None of the above

Question 55

What will the value of x be after the following statements execute?
Int x;
X = 18 % 4;

A)0.45
B)4
C)2
D)unknown

Question 56

Assume that a program has the following variable definition: char letter;
Which of the following statements correctly assigns the character Z to the variable?

A)letter = Z;
B)letter = "Z";
C)letter = 'Z';
D)letter = (Z);

Question 57

In C++ 11, the ________ tells the compiler to determine the variable's data type from the initialization value.

A)auto key word
B)#include preprocessor directive
C)variable's name
D)dynamic_cast key word
E)None of the above

Question 58

C++ 11 introduces an alternative way to define variables, using the template key word and an initialization value.

Question 59

What will the value of x be after the following statements execute?
Int x;
X = 18.0 / 4;

A)4.5
B)4
C)0
D)unknown

Question 60

A preprocessor directive does not require a semicolon at the end.