Answer each question.

1. Multiple Choice (For each question, there is only one correct answer) (3 x 10 = 30)

1. Every C++ program must contain:

1. A cin statement
2. A cout statement
3. A main function
4. All of the above

ii) Given:

double x = 9/5;

cout << x << endl;

1. 1
2. 1.8
3. 2
4. 4

2. Evaluate the following expression for the values of a and b as given below:

float a = 3;

float b = 6;

float z = 1/2*(a + b);

cout << Z = << z << endl;

What will the program display?

1. Z = 4.5
2. Z = 4
3. Z = 0
4. None of the above

3. Which header file is required to use the rand( ) function?

1. cmath
2. iomanip
3. cstdlib
4. ctime

iv) Given a switch statement as below:

int x;

cin >> x;

switch(x % 3)

{

case 0:

cout << Option 1 << endl;

break;

case 1:

cout << Option 2 << endl;

break;

default:

cout << Option 3 << endl;

}

Predict the output when x = 2

a) Option 1

b) Option 2

c) Option 3

d) none of the above

5. What will be the display for the statement given below:

int x = 10;

cout << x++ << endl;

1. 11
2. 10
3. x = 10
4. 9

vi) Given the following program segment:

int count = 7;

while(count > 1)

{

cout << count << , ;

count /= 2;

}

What will be the output from the above program segment?

1. 7, 6, 5, 4, 3, 2
2. 7, 5, 3,
3. 7, 3, 1,
4. 7, 3,

vii) Which of the following C++ logical expression is correct to expresses the following description:

X is greater than 5 but less than 10

a) X > 5 || X < 10

b) X > 5 && < 10

c) X > 5 && X < 10

d) X > 5 || < 10

viii) Which operator given below is not a relational operator?

a) >

(b) !=

(c) ==

(d) ++

ix) What will the following statement display:

float x = 24.5397;

cout << x = << x << setprecision(2);

1. x = 24.54
2. x = 24.5397
3. x = 53;
4. None of the above.

x) The body of a C++ main function is surrounded by:

1. paranthesis
2. square brackets
3. angle brackets