Deck 2: Basic Elements of C++

Question 1

The value of the expression 33/10, assuming both values are integral data types, is ____.

A) 0.3
B) 3
C) 3.0
D) 3.3

Answer 1

B

Question 2

The escape sequence \r moves the insertion point to the beginning of the next line.

Answer 2

False

Question 3

Suppose a = 5.After the execution of the statement ++a; the value of a is 6.

Answer 3

True

Question 4

Suppose we declare a variable sum as an int.The statement "sum += 7;" is equivalent to the statement "sum = sum + 7;".

Question 5

The maximum number of significant digits in values of the double type is 15.

Question 6

A mixed arithmetic expression contains all operands of the same type.

Question 7

Which of the following is a legal identifier?

A) program!
B) program_1
C) 1program
D) program 1

Question 8

The value of the expression 17 % 7 is ____.

A) 1
B) 2
C) 3
D) 4

Question 9

In C++, reserved words are the same as predefined identifiers.

Question 10

If a C++ arithmetic expression has no parentheses, operators are evaluated from left to right.

Question 11

The maximum number of significant digits in float values is up to 6 or 7.

Question 12

The expression static_cast(9.9) evaluates to ____.

A) 9
B) 10
C) 9.9
D) 9.0

Question 13

An operator that has only one operand is called a unique operator.

Question 14

Which of the following is a reserved word in C++?

A) char
B) Char
C) CHAR
D) character

Question 15

A comma is also called a statement terminator.

Question 16

The ____ rules of a programming language tell you which statements are legal, or accepted, by the programming language.

A) semantic
B) logical
C) syntax
D) grammatical

Question 17

____ is a valid int value.

A) 46,259
B) 46259
C) 462.59
D) -32.00

Question 18

The memory allocated for a float value is ____ bytes.

A) two
B) four
C) eight
D) sixteen

Question 19

____ is a valid char value.

A) "-129"
B) 'A'
C) "A"
D) 129

Question 20

An example of a floating point data type is ____.

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

Question 21

Suppose that alpha and beta are int variables.The statement alpha = --beta; is equivalent to the statement(s) ____.

A) alpha = 1 - beta;
B) alpha = beta - 1;
C) beta = beta - 1;
Alpha = beta;
D) alpha = beta;
Beta = beta - 1;

Question 22

Consider the following code. In this code, where does the include statement belong?

A) Insertion Point 1
B) Insertion Point 2
C) Insertion Point 3
D) Anywhere in the program

Question 23

____________________ functions are those that have already been written and are provided as part of the system.

Question 24

____ are executable statements that inform the user what to do.

A) Variables
B) Prompt lines
C) Named constants
D) Expressions

Question 25

A(n) ____________________ is a memory location whose contents can be changed.

Question 26

A(n) ____________________ is a collection of statements, and when it is activated, or executed, it accomplishes something.

Question 27

____________________ rules determine the meaning of instructions.

Question 28

The length of the string "computer science" is ____.

A) 14
B) 15
C) 16
D) 18

Question 29

The declaration int a, b, c; is equivalent to which of the following?

A) inta , b, c;
B) int a,b,c;
C) int abc;
D) int a b c;

Question 30

Suppose that alpha and beta are int variables.The statement alpha = ++beta; is equivalent to the statement(s) ____.

A) beta = beta + 1;
Alpha = beta;
B) alpha = beta;
Beta = beta + 1;
C) alpha = alpha + beta;
D) alpha = beta + 1;

Question 31

In a C++ program, one and two are double variables and input values are 10.5 and 30.6.After the statement cin >> one >> two; executes, ____.

A) one = 10.5, two = 10.5
B) one = 10.5, two = 30.6
C) one = 30.6, two = 30.6
D) one = 11, two = 31

Question 32

Suppose that alpha and beta are int variables.The statement alpha = beta--; is equivalent to the statement(s) ____.

A) alpha = 1 - beta;
B) alpha = beta - 1;
C) beta = beta - 1;
Alpha = beta;
D) alpha = beta;
Beta = beta - 1;

Question 33

Suppose that sum and num are int variables and sum = 5 and num = 10.After the statement sum += num executes, ____.

A) sum = 0
B) sum = 5
C) sum = 10
D) sum = 15

Question 34

Suppose that alpha and beta are int variables and alpha = 5 and beta = 10.After the statement alpha *= beta; executes, ____.

A) alpha = 5
B) alpha = 10
C) alpha = 50
D) alpha = 50.0

Question 35

The expression static_cast(6.9) + static_cast(7.9) evaluates to ____.

A) 13
B) 14
C) 14.8
D) 15

Question 36

Which of the following is the newline character?

A) \r
B) \n
C) \l
D) \b

Question 37

Suppose that count is an int variable and count = 1.After the statement count++; executes, the value of count is ____.

A) 1
B) 2
C) 3
D) 4

Question 38

Choose the output of the following C++ statement:cout << "Sunny " << '\n' << "Day " << endl;

A) Sunny \nDay
B) Sunny \nDay endl
C) Sunny
Day
D) Sunny \n
Day

Question 39

____________________ is the process of planning and creating a program.

Question 40

Suppose that alpha and beta are int variables.The statement alpha = beta++; is equivalent to the statement(s) ____.

A) alpha = 1 + beta;
B) alpha = alpha + beta;
C) alpha = beta;
Beta = beta + 1;
D) beta = beta + 1;
Alpha = beta;

Question 41

When a value of one data type is automatically changed to another data type, a(n) ____________________ type coercion is said to have occurred.

Question 42

In a C++ program, ____________________ are used to separate special symbols, reserved words, and identifiers.

Question 43

The memory space for a(n) ____________________ data value is 64 bytes.

Question 44

The maximum number of significant digits is called the ____________________.

Question 45

The smallest individual unit of a program written in any language is called a(n) ____________________.

Question 46

A(n) ____________________ is a sequence of zero or more characters.

Question 47

____________________ can be used to identify the authors of the program, give the date when the program is written or modified, give a brief explanation of the program, and explain the meaning of key statements in a program.

Question 48

The ____________________ type is C++ 's method for allowing programmers to create their own simple data types.

Question 49

In C++, you can use a(n) ____________________ to instruct a program to mark those memory locations in which data is fixed throughout program execution.

Question 50

A data type is called ____________________ if the variable or named constant of that type can store only one value at a time.