Quiz 2

Question 1

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

Answer 1

A) Comment

B) Function

*C) Preprocessor directive

D) Key word

E) None of the above

Question 2

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

Answer 2

A) Opening and closing braces

B) Opening and closing quotation marks

*C) cout object

D) Backslash

E) None of the above

Question 3

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

Answer 3

A) Backslash

B) Forwardslash

C) Semicolon

*D) #include directive

E) None of the above

Question 4

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

Answer 4

*A) Literals

B) Variables

C) Comments

D) Integers

E) None of the above

Question 5

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

Answer 5

A) purpose

*B) definition

C) comment

D) constant

E) None of the above

Question 6

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

Answer 6

A) double, single

B) triple, double

C) open, closed

*D) single, double

E) None of the above

Question 7

Which data type typically requires only one byte of storage?

Answer 7

A) short

B) int

C) float

*D) char

E) double

Question 8

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

Answer 8

*A) String literal

B) Variable

C) Operation

D) Statement

E) None of the above

Question 9

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

Answer 9

A) Pound Sign

*B) Semicolon

C) Data type

D) Void

E) None of the above

Question 10

Which character signifies the beginning of an escape sequence?

Answer 10

A) //

B) /

*C) \

D) #

E) {

Question 11

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

Answer 11

A) Opening and closing braces

*B) The header file iostream

C) Comments

D) Escape sequences

E) None of the above

Question 12

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

Answer 12

A) len

B) bytes

C) f(x)

D) int

*E) sizeof

Question 13

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

Answer 13

A) binary

*B) bool

C) T/F

D) float

E) None of the above

Question 14

Which of the following correctly consolidates the following declaration statements into one statement?

 int x = 7;

 int y = 16;

 int z = 28;

Answer 14

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 15

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

Answer 15

A) data type

B) value

*C) scope

D) reach

E) None of the above

Question 16

Every complete C++ program must have a ________.

Answer 16

A) comment

*B) function named main

C) preprocessor directive

D) symbolic constant

E) cout statement

Question 17

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

Answer 17

A) dayOfWeek

*B) 3dGraph

C) _employee_num

D) June1997

E) itemsorderedforthemonth

Question 18

What will the following code display?

 cout << "Monday";

 cout << "Tuesday";

 cout << "Wednesday";

Answer 18

A) Monday

Tuesday

Wednesday

B) Monday Tuesday Wednesday

*C) MondayTuesdayWednesday

D) “Monday”

“Tuesday”

“Wednesday”

Question 19

What will the following code display?

 int number = 7;

 cout << "The number is " << "number" << endl;

Answer 19

A) The number is 7

*B) The number is number

C) The number is7

D) The number is 0

Question 20

What will the following code display?

 int x = 0, y = 1, z = 2;

 cout << x << y << z << endl;

Answer 20

A) 0 1 2

B) 0

1

2

C) xyz

*D) 012

Question 21

What will the following code display?

 cout << "Four\n" << "score\n";

 cout << "and" << "\nseven";

 cout << "\nyears" << " ago" << endl;

Answer 21

*A) Four

score

and

seven

years ago

B) Four score and seven

years ago

C) Four

score

and seven

years ago

D) Four score

and seven

years ago

Question 22

Assume that a program has the following variable definition:

 char letter;

Which of the following statements correctly assigns the character Z to the variable?

Answer 22

A) letter = Z;

B) letter = “Z”;

*C) letter = ‘Z’;

D) letter = (Z);

Question 23

What will the value of x be after the following statements execute?

 int x;

 x = 18 / 4;

Answer 23

A) 4.5

*B) 4

C) 0

D) unknown

Question 24

What will the value of x be after the following statements execute?

 int x;

 x = 18.0 / 4;

Answer 24

A) 4.5

*B) 4

C) 0

D) unknown

Question 25

What will the value of x be after the following statements execute?

 int x;

 x = 18 % 4;

Answer 25

A) 0.45

B) 4

*C) 2

D) unknown