Multiple Choice Questions

Question 1

. ________ is the physical aspect of the computer that can be seen
a) hardware
b) Software
c) Operating system
d) Application programming

Answer 1

Hardware

some hardware components of a computer include: CPU, memory, hard disk, printer, and communication devices

Question 2

__________ is the brain of a computer.
a) Hardware
b) CPU
c) Memory
d) Disk

Answer 2

CPU

the CPU retrieves instructions from the memory and executes them

Question 3

One byte has __ bits
a) 4
b) 8
c) 12
d) 16

Answer 3

8

Question 4

A computers _____ is volatile; that is, any information stored in it is lost when the systems power is turned off
a) Floppy disk
b) Flashdisk
c) CD-ROM
d) memory

Answer 4

Memory

The memory of the computer is used to store data and program instructions for the CPU to execute. The memory is volatile, so when power is turned off information is lost. That is why information is stored in storage devices.

Question 5

Computers can execute the code in ______
a) machine language
b) assembly language
c) high-level language
d) none of the above

Answer 5

Machine Language

Machine language is a computers native language, a set of built in primitive instructions
ex. adding two numbers would look something like
1101101010011010

Question 6

_____ translates high level language program into machine language program
a) An assembler
b) A compiler
c) CPU
d) the operating system

Answer 6

A compiler

Question 7

_____ is an operating system
a) Java
b) C++
c) Windows
d) Visual basics

Answer 7

Windows

An operating system is an important program that manages and controls a computers activities

Question 8

_______ is a program that runs on a computer to manage and control a computers activities
a) Operating System
b) C++
c) interpreter
d) Complier

Answer 8

Operating System

an example of an operating system is Windows

Question 9

Which of the following statements is the correct way to displau Welcome to C++ on the console?
A) cout &laquo_space;“Welcome to C”;
B) cout&raquo_space; “Welcome to C”;
C) cout < “Welcome to C”;
D) cout &laquo_space;‘Welcome to C’

Answer 9

cout &laquo_space;“Welcome to C”;

Question 10

Which of the following preprocessor directive is correct?
A) import iostream
B) #include <iostream>
C) include <iostream>
D) #include iostream</iostream></iostream>

Answer 10

include <iostream></iostream>

a compiler preprocessor directive that tells the compiler to include the iostream library in the program. It is needed to support console input and output

Question 11

Every statement in C ends with ________, which is called a statement terminator
A) a semicolon (;)
B) a comma (,)
C) a peiod (.)
D) an asteisk (*)

Answer 11

A semicolon ;

a statement is a complete and separate instruction that preforms some action.

Question 12

A block is enclosed inside __________.
A) Parentheses
B) Braces
C)Brackets
D) Quotes

Answer 12

Braces

a block is a set of statements that are grouped together and treated as one unit

Question 13

Which of the following statements is correct?

A) Every line in a program must end with a semicolon

B) Every statement in a program must end with a semicolon

C) Every comment line must end with a semicolon

D) Every function must end with a semicolon

E) Every preprocessor directive must end with a semicolon

Answer 13

Every statement in a program must end with a semicolon

Question 14

What is the output of the following code?
cout &laquo_space;“1 + 2 +3” &laquo_space;endl;
cout «1 +2 +3 &laquo_space;endl;

A) 1 + 2 + 3 followed by 6
B) “6” followed by 6
C) 1 + 2 + 3 followed by 1 + 2 + 3
D) 6 followed by 6

Answer 14

1 + 2 + 3 followed by 6

cout &laquo_space;“1 + 2+ 3” &laquo_space;endl;
cout &laquo_space;1 +2 + 3 &laquo_space;endl;

anything in quotation marks is displayed exactly as seen.

Since the next line is not in quotation marks, it will be calculated and the answer will be displayed.

Question 15

___________ is called a stream insertion operator for sending output to the console.
A) a semicolon (;)
B) a comma (,)
C) a peiod (.)
D) an asteisk (*)
E) «

Answer 15

«

The &laquo_space;is used to insert data into the output stream.

Question 16

C++ compiler translates C++ source code into _________.
A) Java code
B) machine code
C) C code
D) another high-level language code

Answer 16

Machine code

The computer can only read machine code, so the compiler takes everything in C++ language and translates it into machine language so the computer can execute it.

Question 17

Suppose you create a C as follows, the source code should be stored in a file named ___________.

int main()
{

}

A) Test.cpp
B) Test.doc
C) Test.txt
D) Test.java
E) Any name with extension .cpp

Answer 17

Any name with extension .cpp

When naming the source code it is really only being named for your use. You can call it anything you want, just maker sure it is followed by .cpp

Question 18

If a program compiles fine, but it produces incorrect result, then the program suffers
__________.
A) a compilation/syntax eror
B) a runtime eror
C) a logic error

Answer 18

a logic error

A logic error is when the program does not run the way it was intended. These errors are really hard to identify.

Question 19

include <iostream></iostream>

The following code has _______.

using namespace std;

int main()
{
cout &laquo_space;“Welcome to C++ &laquo_space;endl;
return 0;
}

A) a compilation/syntax eror
B) a runtime eror
C) a logic error

Answer 19

A compilation/ syntax error

A compiler/ syntax error is one detected by the compiler. You can see that there is a missing quotation mark, a mistake made by the programmer.

Question 20

____________ is the assignment operator.
A ==
B :=
C =
D =:

Answer 20

=

the assignment operaotr is used to assign a value to a variable.

ex.
int x=5
the assignment operator is used to assign the value of 5 to the variable x

Question 21

To assign a value 1 to variable x, you write
1 = x;
B x = 1;
C x := 1;
D 1 := x;
E x == 1;

Answer 21

x=1;

Question 22

Which of the following types can be used to define a floating-point numbers?
A) int
B) shot
C) long
D) double

Answer 22

double

use when the variable can be a decimal number

Question 23

To improve readability and maintainability, you should declare a _________ for PI instead of
using literal values such as 3.14159.

A) variable
B) function
C) constant
D) class

Answer 23

constant

declaring a constant allows you to create a value that cannot be changed throughout the program.

ex. declaring a constant for pi
const double pi = 3.14159;

now, anytime you use pi in your program its value that was initialized will be used.

Question 24

To declare a constant MAX_LENGTH inside a function with value 99.98, you write
A)const MAX_LENGTH = 99.98;
B) double MAX_LENGTH = 99.98;
C) const double MAX_LENGTH = 99.98;

Answer 24

const double MAX_LENGTH = 99.98;

this statement is declaring a constant variable called MAX_LENGTH. This number will stay the same throughout the entire program i=since it is a constant. It can also be a decimal number since it is a double type

Question 25

What is the result of (4 + 1) * ((5 - 2) / 2)? A) 4 B) 5 C) 5.0 D) 7.5 E) 5.5

Answer 25

5 (3/2) is 1.5 but since the function used 3 and not 3.0 the answer is rounded down to 1. The rest of the equation makes the answer equal to 5.

Question 26

Which of the following are correct ways to declare variables? Please select all that apply. A) int length; int width; B) int length, width; C) int length; width; D) int length, int width;

Answer 26

int length; int width; this declares integer variables named length and width. you can also split this into two separate lines and the same thing would happen. int length, width; this function also declares two variables int length and int width.

Question 27

Analyze the following code. #include using namespace std; int main() { int month = 09; cout << "month is " << month; return 0; } A) The program displays month is 09 B) The program displays month is 9 C) The program displays month is 9.0 D) The program has a syntax error, because 09 is an incorrect literal value.

Answer 27

The program has a syntax error, because 09 is an incorrect literal value.

Question 28

What is result of 45 / 4? A) 10 B) 11 C) 11.25 D) 12

Answer 28

11 the answer is rounded down since 45.0 was not used

Question 29

25 % 1 is _____. A 1 B 2 C 3 D 4 E 0

Answer 29

0 if you divide 25 by 1 there is 0 remaining.

Question 30

The __________ function returns a raised to the power of b A power(a, b) B exponent(a, b) C pow(a, b) D pow(b, a)

Answer 30

pow (a,b)

Question 31

To write 2.1 ^ 2.4 in C++, use _____ A pow(2.4, 2.1) B pow(2.1, 2.4) C 2.1 * 2.4 D 2.1 * 2.1

Answer 31

pow(2.1, 2.4)

Question 32

pow(2.0, 3) returns __________. A 9 B 8 C 1 D 0

Answer 32

8

Question 33

What is x after the following statements? int x = 2; int y = 1; x *= y + 1; A x is 1. B x is 2. C x is 3. D x is 4.

Answer 33

4 The statement x* = y+1 multiplies the value of x by the result of y+1 (basically a trick is do the math but ignore the = sign)

Question 34

Suppose x is 1. What is x after x+=2? A) 0 B) 1 C) 2 D) 3 E) 4

Answer 34

3 ignore = sign and solve

Question 35

invoking time(0) returns____ A) the hour, minute, and second of the current time. B) the elapsed time in milliseconds since Midnight, Jan 1, 1970 GMT. C) the elapsed time in seconds since Midnight, Jan 1, 1970 GMT. D) the elapsed time in minutes since Midnight, Jan 1, 1970 GMT.

Answer 35

the elapsed time in seconds since Midnight, Jan 1, 1970 GMT.

Question 36

The time function is defined in the ________ header file. A time B ctime C cctype D cstdlib E cmath

Answer 36

ctime

Question 37

What will be the output of the following code? int i 1; int j = i++; cout << "i is " << i; cout << " and j is " << j; A) i is 1 and j is 1 B) i is 1 and j is 2 C) i is 2 and j is 1 D) i is 2 and j is 2

Answer 37

i is 2 and j is 2 i is initialized to the value 1. then it assigns i to j and it increments the value of i by 1. since i is not a constant its value is changed to 2

Question 38

Are the following four statements equivalent? number 1; number = number 1; number++; ++number; A) yes B) no

Answer 38

yes

Question 39

The equal comparison operator is __________. A <> B ! C == D =

Answer 39

== the equal comparison operator is used to compare two values. It checks to see if both numbers on each side of the operator are equal.

Question 40

Which of the following is incorrect? A The word tue is a C keyword B The word tue is a Boolean literal C The word true is same as value 1 D The word true is same as value 0

Answer 40

The word true is same as value 0 true is assigned to 1 false is assigned to 0

Question 41

What is 1 + 1 + 1 + 1 + 1 == 5? A tue B false C There is no guarantee that 1 + 1 + 1 + 1 + 1 == 5 is tue.

Answer 41

true the equal comparison operator checks both signs of the equal signs

Question 42

Which of the following code displays the area of a circle if the radius is positive. A if (radius ! 0) cout << radius * radius * 3.14159; B if (radius > 0) cout << radius * radius * 3.14159; C if (radius <= 0) cout << radius * radius * 3.14159;

Answer 42

if (radius > 0 cout << radius * radius * 3.14159; this function is preformed if radius is greater than 0

Question 43

What is the output of the following code? int x = 0; if (x < 4) { x = x + 1; } cout << "x is " << x << endl; A x is 0 B x is 1 C x is 2 D x is 3 E x is 4

Answer 43

x is 1 the if statement check to see if x is less then 4, since it is the statement is preformed

Question 44

Analyze the following code. bool even = false; if (even) { cout << "It is even!"; } A The code displays: It is even! B The code displays nothing. C The code is wrong. You should replace if (even) with if (even == true) D The code is wrong. You should replace if (even) with if (even = true)

Answer 44

The code displays nothing. int the if statement the condition 'even' is evaluated. since 'even' is false , the statement is not executed

Question 45

Suppose isPrime is a boolean variable, which of the following is the correct and best statement for testing if isPrime is true. A) if (isPrime = true) B) if (isPrime == true) C) if (isPrime) D) if !isPrime = false) E) if !isPrime == false)

Answer 45

if (isPrime)

Question 46

What is the output of the following code? int number =8; if (number < 8) cout << 1 << endl; else cout << 2 << endl; A 1 B 2 C nothing D 1 2 E 2 1

Answer 46

2 the fist if statement is not met, it then moves onto the next else statement and the code displays 2

Question 47

The following code displays____. double temperature = 50; if (temperature >= 100) cout << "too hot" << endl; else if (temperature <= 40) cout << "too cold" << endl; else cout << "just right" << endl; A too hot B too cold C just right D too hot too cold just right

Answer 47

just right

Question 48

What is the output of the following code? Hint: pay attention to the Boolean Expression! int score = 70; if (score = 100) cout << "A perfect score" << endl; else cout << "Not a perfect score" << endl; A) a perfect score B) Not a perfect score

Answer 48

A perfect score notice how = is used and not == . this resultsw in score being set to 100.

Question 49

Suppose income is 4001, what is the output of the following code: if (income > 3000) { cout << "Income is greater than 3000" << endl; } else if (income > 4000) { cout << "Income is greater than 4000" << endl; } A no output B Income is greater than 3000 C Income is greater than 3000 followed by Income is greater than 4000 D Income is greater than 4000 E Income is greater than 4000 followed by Income is greater than 3000

Answer 49

Income is greater than 3000 since the first expression i checked and matches, it is then carried out

Question 50

Which function returns a random integer? A srand() B srand(0 ) C rand() D rand(0 )

Answer 50

rand ()

Question 51

What is the minimum and maximum possible return from invoking rand()? A 0 and 10000000 B 10000000 and 10000000 C 0 and RAND_MAX D 0 and RANDMAX

Answer 51

0 and RAND_MAX no negative numbers are ever returned

Question 52

Assume x = 4, Which of the following is true? A !(x == 4) B x != 4 C x == 5 D x != 5

Answer 52

x!=5 the != means not equal

Question 53

Suppose x = 10 and y = 10 What is x after evaluating the expression (y > 10) && (x++ > 10) ? A 9 B 10 C 11

Answer 53

10 when the && operator evaluates, it evaluates the left side first. if it is false, the left is ignored && means both while || means or

Question 54

Suppose x = 10 and y = 10 what is x after evaluating the expression (y >= 10 )|| (x++ > 10)? A 9 B 10 C 11

Answer 54

10 since the first expression is true, the second is not evaluated. since y is equal to 10 the second part is ignored. Note- if the first one was false, then it would move on to the right side

Question 55

Which of the following is the correct expression that evaluates to true if the number x is between 1 and 100, or the number is negative? A 1 < x < 100 && x < 0 B ((x < 100) && (x > 1)) || (x < 0) C ((x < 100 )&& (x > 1 && (x < 0) D (1 > x > 100) || (x < 0)

Answer 55

((x < 100) && (x > 1)) || (x < 0)

Question 56

What is y after the following statement is executed? x = 0; y = (x> 0) ? 10 : -10; A 10 B 0 C 10 D 20

Answer 56

-10 since the first expression is false, the value of -10 is assigned to y

Question 57

What will be displayed by the following switch statement? char ch = 'a'; switch (ch) { case 'a': cout << ch << endl; break; case 'b': cout << ch << endl; break; case 'c': cout << ch << endl; break; case 'd': cout << ch << endl; A abcd B a C aa D ab

Answer 57

a

Question 58

What is y after the following switch statement is executed? int x = 3; int y = 4; switch (x +3 ) { case 6: y = 0; case 7: y = 1; default: y += 1; } A 1 B 2 C 3 D 4

Answer 58

2 breakdown of code: -switch (x+3) is evaluated and it equals 6. case 6 is then evaluated. -y is now assigned to 0 -since there is no break statement the next case is evaluated, assigning 1 to y -the next case is evaluated assigning y to 2 since there was no break statement, the cases continue to be executed until the end. the switch statement allows you to select one of many code blocks to be executed based off of the value of the given expression. Break statement: after executing a code block, the break statement is used to exit the switch statement. Without a break statement, the execution will continue to the next case.

Question 59

What is sqt(4.0)? A 2 B 2.5 C 1 D 3.0

Answer 59

2

Question 60

What is ceil(3.6) A 2 B 3 C 4 D 5

Answer 60

4

Question 61

What is floor(3.6)? A 2 B 3 C 4 D 5.0

Answer 61

3

Question 62

What is max(min(3, 6), 2)? A 2 B 3 C 4 D 5.0

Answer 62

3

Question 63

Which of the following are NOT the functions in C++? Please select all that apply. A srand() B rand() C rint() D pow() E random()

Answer 63

random() rint()

Question 64

Which of the following is the correct expression of character 4? A 4 B "4" C '\0004' D '4'

Answer 64

'4'

Question 65

Which of the following assignment statements is correct? Please select all that apply. A char c = 'd'; B char c = 100; C char c = "d"; D char c = "100";

Answer 65

char c = 'd'; char c = 100;

Question 66

Note that the ASCII for character A is 65. The expression 'A' + 1 evaluates to ________. A B B 66 C A1 D Illegal expression E 67

Answer 66

66

Question 67

The ASCII of 'a' is 97. What is the ASCII for 'c'? A 96 B 97 C 98 D 99

Answer 67

99

Question 68

Suppose x is a char variable with a value 'b'. What will be displayed by the statement cout << ++x? A a B b C c D d

Answer 68

c

Question 69

Suppose i is an int type variable. Which of the following statements display the character whose ASCII is stored in variable i? A cout << i; B cout << static_casti; C cout << static_casti;

Answer 69

cout << static_casti; the static_cast is a casting operator that allows you to convert one data type to another this uses the static_cast operator to convert the integer value in i to a character. it will then display the character corresponding to the ASCII value.

Question 70

What is the output of the following code? char ch = 'F'; if (ch >= 'A' && ch <= 'Z') cout << ch << endl A F B f C nothing D F f

Answer 70

F F has a value of 70 in the ASCII A is equal to 65 Z is equal to 90

Question 71

To return an uppercase letter from a character variable ch, we use: A isdigit(ch) B isalpha(ch) C toupper(ch) D tolower(ch) E islower(ch)

Answer 71

toupper(ch) this function is designed to convert lowercase characters to uppercase characters

Question 72

Suppose a sting is declared as sting s = "abcd". What is s.length()? A 1 B 2 C 3 D 4

Answer 72

4 the s.length() function is used to determine the length of a string and will return the number of characters in a string, this includes whitespaces and special characters. A string is a sequence of characters enclosed in double quotation marks. the s.length() function starts counting at 1.

Question 73

Suppose a sting is declared as sting s = "abcde". What is s.at(0)? A a B b C c D d E e

Answer 73

a the s.at() function allows us to access individual characters within a string based off of their position. Indexing starts at 0.

Question 74

If you read a sting input: PROGRAMMING IS FUN using the following code, what will s be? cout << "Enter a sting:"; sting s; cin >> s; A PROGRAMMING IS FUN B PROGRAMMING C IS D FUN

Answer 74

PROGRAMMING this is assigning PROGRAMMING to variable s. If you want the entire string to be read, you have to use the getline function.

Question 75

If you read a sting input: PROGRAMMING IS FUN using the following code, what will s be? cout << "Enter a sting:"; sting s; getline(cin, s); A PROGRAMMING IS FUN B PROGRAMMING C IS D FUN

Answer 75

PROGRAMMIN IS FUN the getline function reads and displays the entire string that is entered.

Question 76

You can use _______ to set the width of a pint field. A setw(width) B setprecision(n) C fixed D showpoint E left

Answer 76

setw(width) field width- the field width refers to the number of characters allocated for a particular output field the setw(width) function is in the library

Question 77

To create an object for reading data from file test.txt, use ________. A ofstream("test.txt"); B ofstream input("test.txt"); C ifstream("test.txt"); D ifstream input("test.txt");

Answer 77

ifstream input("test.txt");

Question 78

To create an object for witing data to file test.txt, use ________. A ofstream("test.txt"); B ofstream output("test.txt"); C ifstream("test.txt"); D ifstream output("test.txt");

Answer 78

ofstream output("test.txt");

Question 79

What is the output of the following code? int x = 0; while (x < 4 ) { x = x + 1; } cout << "x is " << x << endl; A x is 0 B x is 1 C x is 2 D x is 3 E x is 4

Answer 79

x is 4 the function will be done a total of 4 times because x starts at 0

Question 80

What is the output of the following code? int count = 5; while (count > 0) { cout << count << " "; count--; } A 5 4 3 2 1 B 4 3 2 1 C 4 3 2 1 0 D 5 4 3 2 1 0

Answer 80

5 4 3 2 1

Question 81

What will be displayed when the following code is executed? int number = 6; while (number > 0) { number -= 3; cout << number << " "; } A 6 3 0 B 6 3 C 3 0 D 3 0 3 E 0 3

Answer 81

3 0

Question 82

What is the output of the following code? int count = 0; do { cout << count << " "; count++; } while (count < 5); A 1 2 3 4 5 B 2 3 4 5 C 0 1 2 3 4 5 D 0 1 2 3 4

Answer 82

0 1 2 3 4 the do while loop is always executed once. it then checks the requirements at the end of the statement. The loop is executed for the first time, the value of count (0) is printed. It is then executed until x is 5 and not longer matches the requirements.

Question 83

. How many times will the following code pint "Welcome to C"? int count= 0; do { cout << "Welcome to C++"; count++; } while (count ++ < 10); A 8 B 9 C 10 D 11 E 0

Answer 83

11

Question 84

ollowing code pint "Welcome to C"? int count= 0; do { cout << "Welcome to C++"; count++; } while (++count < 10); A 8 B 9 C 10 D 11 E 0

Answer 84

10

Question 85

What is the number of iterations in the following loop: for (int i =1; i < n; i++) { // iteration } A 2*n B n C n-1 D n+1

Answer 85

n-1 Loop Condition: The condition that determines whether the loop should continue or terminate. It is evaluated before each iteration. i

Question 86

What is the number of iterations in the following loop: for (int i =1; i <= n; i++) { // iteration } A 2*n B n C n-1 D n+1

Answer 86

n

Question 87

What is the output for y? int y = 0; for (int i = 0; i < 10; ++i) { y += i; } cout << y; A 10 B 11 C 12 D 13 E 45

Answer 87

45 this code the variable y is initialized to 0. The for loop is then executed 10 times, with i starting at 0 and incrementing by 1 each time. Inside the loop the value of i is added to y using the += operator. once ran through 10 times we have y= the sum of numbers from 0 to 9 which is 45

Question 88

Do the following two statements result in the same value in sum? 1 for (int i = 0; i < 10; ++i) { sum += i; } 2 for (int i= 0; i <10; i++) { sum += i; } A yes B no

Answer 88

yes

Question 89

Analyze the following code fragment: double sum = 0; double d = 0; while (d != 10.0 ) { d += 0.1; sum += sum + d; } A The program does not compile because sum and d are declared double, but assigned with integer value 0. B The program never stops because d is always 0.1 inside the loop. CThe program may not stop because of the phenomenon refered to as numeical inaccuracy for operating with floating-point numbers. D After the loop, sum is 0 + 0.1 + 0.2 + 0.3 + ... + 1.9

Answer 89

The program may not stop because of the phenomenon referred to as numerical inaccuracy for

Question 90

What is sum after the following loop terminates? int sum= 0; int item= 0; do { item++; sum += item; if (sum > 4) break; } while (item 5); A 5 B 6 C 7 D 8

Answer 90

6

Question 91

Will the following program terminate? int balance=10; while (true) { if (balance< 9) break; balance = balance -9; A yes B no

Answer 91

yes

Question 92

What is sum after the following loop teminates? int sum = 0; int item = 0; do { item++; if (item == 4) continue; sum += item; } while (item 5); A 10 B 11 C 12 D 13

Answer 92

11

Question 93

Will the following program terminate? int balance =10; while (true) { if (balance < 9) continue; balance = balance - 9; } A Yes B No

Answer 93

no

Question 94

The signature of a function consists of ____________. A function name B function name and parameter list C return type, function name, and parameter list D parameter list

Answer 94

function name and parameter list

Question 95

The header of the main function in C++ is __________. A Main(Sting[] args) B Main(Sting args[]) C void main(Sting[] args) D main(Sting[] args) E int main()

Answer 95

int main()

Question 96

Arguments to functions always appear within __________. A brackets B parentheses C curly braces D quotation marks

Answer 96

parentheses

Question 97

Suppose your function does not return any value, which of the following keywords can be used as a return type? A void B int C double D float E unsigned shot

Answer 97

void

Question 98

Which of the following functions should be defined as void? Please select all that apply. A Retun a sales commission, given the sales amount and the commission rate. B Pint the calendar for a month, given the month and year. C Return a square root for a number. D Return a bool value indicating whether a number is even. E Pint a character a specified number of times.

Answer 98

Pint the calendar for a month, given the month and year. Pint a character a specified number of times.

Question 99

Suppose void nPint(char ch, int n) { while (n > 0) { cout << ch; n--; } } A aaaaa B aaaa C aaa D invalid call

Answer 99

aaaa

Question 100

C allows you to declare functions with the same name. This is called ________. A function duplication B function oveiding C function overloading D function redeclaration

Answer 100

function overloading

Question 101

Analyze the following code #include using namespace std; int xfunction(int n, long t) { cout << "int"; retun n; } long xfunction(long n) { cout << "long"; retun n; } int main() { cout << xfunction(5; retun 0; } The program displays int followed by 5. B The program displays long followed by 5. C The program uns fine but displays nothing.

Answer 101

he program displays long followed by 5.

Question 102

Which of the following are correct function prototypes for a function that returns the max value between two int values? Please select all that apply. A int max(int num1, int num2); B int max(int num1, int num2) C int max(int, int); D int max(num1, num2); E max(int num1, int num2);

Answer 102

int max(int num1, int num2); int max(int, int);

Question 103

Which of the following function declarations are illegal? Please select all that apply. A void t1(int x, int y = 0, int z); B void t2(int x = 0, int y = 0, int z); C void t3(int x, int y = 0, int z = 0; D void t4(int x = 0, int y = 0, int z = 0;

Answer 103

void t1(int x, int y = 0, int z); void t2(int x = 0, int y = 0, int z);

Question 104

What is the output of the following code? inline void pint(int i) { cout << i << endl; } int main() { pint(1); return 0; } A 0 B 1 C 2 D nothing

Answer 104

1

Question 105

A vaiable defined inside a function is refered to as __________. A a global vaiable B a function vaiable C a block vaiable D a local vaiable

Answer 105

local variable

Question 106

What will be the output of the following code? #include using namespace std; int j 1; int main() { int i 2; int j 2; cout << "i is " << i << " j is " << j << endl; retun 0; } A i is 2 j is 1 B i is 1 j is 1 C i is 1 j is 2 D i is 2 j is 2

Answer 106

i is 2 j is 2

Question 107

What is the representation of the third element in an aray called a? A a[2] B a(2) C a[3] D a(3)

Answer 107

a[2]

Question 108

If you declare an aray double list[] = 3.4, 2.0, 3.5, 5.5, list[1 is ________. A 3.4 B 2.0 C 5.5 D undefined

Answer 108

2.0

Question 109

. If you declare an aray double list[] = 3.4, 2.0, 3.5, 5.5, the highest index in aray list is __________. A 0 B 1 C 2 D 3 E 4

Answer 109

3

Question 110

How many elements are in aray double list[5]? A 4 B 5 C 6 D 0

Answer 110

5

Question 111

Can you copy an aray as follows: int x[] = 120, 200, 16; int y[3]; yes no

Answer 111

no

Question 112

Which of the following statements is false? A Evey element in an aray has the same type. B The aray size is fixed after it is created. C The aray size used to declare an aray must be a constant expression. D The aray elements are initialized when an aray is created.

Answer 112

The aray elements are initialized when an aray is created.

Question 113

Analyze the following code. #include using namespace std; int main() { int x[3]; cout << "x[0 is " << x[0]; return 0; } A The program has a compile eror because the size of the aray wasn't specified when declaing the aray. B The program has a untime eror because the aray elements are not initialized. C The program uns fine and displays x[0 is 0. D The program has a untime eror because the aray element x[0 is not defined. E x[0 has an arbitray value.

Answer 113

E x[0 has an arbitray value.

Question 114

Which of the following statements is valid? Please select all that apply A int i(30); B double d[30]; C int i[] = {3, 4, 3, 2}; D int[] i = {3, 4, 3, 2}; E int i[4] = {3, 4, 3, 2};

Answer 114

double d[30]; int i[] = {3, 4, 3, 2}; int i[4] = {3, 4, 3, 2};

Question 115

What is the corect tem for numbers[99] A index B index vaiable C indexed vaiable D aray vaiable E aray

Answer 115

indexed vaiable

Question 116

What is the output of the following code: #include using namespace std; int main() { int x[] = 120, 200, 16; for (int i 0; i 3; i++) cout << x[i] << " "; retun 0; } A 120 200 16 B 16 200 120 C 200 120 16 D 16 120 200

Answer 116

120 200 16

Question 117

When you pass an aray to a function, __________ is passed to the aray parameter in the function A a copy of the aray B a copy of the first element C the stating address of the aray D the length of the aray

Answer 117

the stating address of the aray