C++ Programming Quiz

What will be the output of the following code?

int i = 0;

while (i < 3)

{

cout << "Number: " << i << endl;

i++;

}

• Number: 1

  Number: 2

  Number: 3

• Number: 0

  Number: 1

  Number: 2

• Number: 0

  Number: 1

  Number: 2

  Number: 3

• None of the above

What will be the output of the following code using `switch case`?

char ch = 'b';

switch(ch)

{

case 'a': cout << "Apple";

case 'b': cout << "Banana";

case 'c': cout << "Cherry";

default: cout << "None";break;

}

• Apple

  Banana

  Cherry

  None

• Banana

  Cherry

  None

• Cherry

  None

• None

What is the output of this program with a `while` loop?

int num = 6;

while (num >= 1)

{

cout << num << " ";

--num ; }

• 6 5 4 3 2 1

• 1 2 3 4 5 6

• 6 5 4 3 2

• Infinite loop

What will be the output of this C++ code using a `do while` loop?

int num = 1;

do

{

cout << num << " ";

num++;

} while (num <= 5);

• 1 2 3 4 5

• 1 2 3 4

• 0 1 2 3 4

• None of the above

What will the following code output?

int i = 1, sum = 0;

for (; i <= 5; i++)

{

sum += i;

} cout << sum;

• 15

• 10

• 5

• None of the above

What will be the output of the following code with a `continue` statement?

for (int i = 1; i <= 5; i++)

{

if (i == 3)

continue;

cout << i << " ";

}

• `1 2 3 4 5`

• `1 2 4 5`

• `1 2 4`

• None of the above

What will be the output of this program with nested loops?

for (int i = 1; i <= 3; i++)

{

for (int j = 1; j <= 3; j++)

{

cout << i << j << " ";

}

cout << endl;

}

• 11 12 13

  21 22 23

  31 32 33

• 11 21 31

  12 22 32

  13 23 33

• 11 22 33

  11 22 33

  11 22 33

• 1 2 3

  1 2 3

  1 2 3

Which of the following is a correct syntax for a nested for loop in C++?

• for (initialization; condition)

  {

  }

• for (initialization; condition; update)

  {

  for (initialization; condition; update)

  {}

  }

• for () { while () {} }

• while () { do {} while(); }

Which of these control statements is used to exit from a loop?

• continue

• return

• break

• goto

In a 2D array, how are elements stored?

• Rows and columns

• Sequentially in memory

• Both

• None