Question 1

Consider the following code snippet

int a,b,c,max;

max=a;

if(max<b)

     max=b;

if(max<c)

     max=c;

cout<<”Max: ”<< max;

What output do you think the code will produce if a is 10, b is 20, c is 30?

Accepted Answer

Max: 30

Question 2

What does the following code fragment write to the monitor?

 

int sum = 94;

if ( sum < 20 )

{ 

  cout<<"Under ";

  cout<<"the limit.";

}

else

{ 

  cout<<"Over  ";

  cout<<"the limit.";

}

Accepted Answer

Over the limit.

Question 3

Assume the following initialization: x = 2, y = 3. Determine the output of the given segment of a program. if ( x >= y ) if( y >= 0 ) cout<<”y = “<

Accepted Answer

No screen output

Question 4

What does the following code fragment write to the monitor?
int sum = 14;
if ( sum < 20 )
  cout<<"Under ";
else
  cout<<"Over  ";
cout<<"the limit.";

Accepted Answer

Under the limit.

Question 5

Consider the following code snippet


if (x<50)

      if (x>=0 && x<=25)

                  x+=25;

      else

                  x-=25;



What will be the final value of x if x=33?

Accepted Answer

8

Question 6

If none of the conditions is true in an if-ladder then the final else statement will be executed.

Accepted Answer

True

Question 7

if (aNumber >= 0)

     if (aNumber == 0)

        cout<<"first string
";

            else

        cout<<”second string
”;

cout<<"third string";

What output do you think the code will produce if aNumber is 3?

Accepted Answer

second string

third string

Question 8

Whether the indentation exists or not, the compiler will, by default, associate an else with the closest previous unpaired if.

Accepted Answer

True

Question 9

What is the variable used in the program?

float grade;

Accepted Answer

grade

Question 10

If grade = 68, what will be its output? if (grade>=95) { cout<<"Excellent"; else if(grade>=90) cout<<"Very Good"; else if(grade>=85) cout<<"Good"; else if(grade>=75) cout<<"Fair"; else cout<<"Study very well."; return 0; }

Accepted Answer

Study very well.

Question 11

int x = 4, y;
switch ( y % x ){
case 0: x += y;
case 1: cout<<“x = ” << x;break;
default: cout<<”No Match”;
}
What is the output of this program if y = 5?

Accepted Answer

x = 4

Question 12

int id = 0; cout << “ID: “; cin >> id; switch (id) { case 3: case 5: cout << “Jerry”; break; default: cout<<"Sue"; What will be displayed when the user enters the number 3?

Accepted Answer

Jerry

Question 13

The constant-expression for a case must be of different data type as the variable in the switch.

Accepted Answer

False

Question 14

#include using namespace std; int main(){ int num; cout<<"Enter a number:"; cin>>num; switch(num){ case 1: cout<<"RED";break; } return 0; } If num=-1, what will be its output?

Accepted Answer

No screen output

Question 15

Which of the following must be present in the switch construct?

Accepted Answer

default

Question 16

When you have the default keyword in your switch, you are required to place a break statement.

Accepted Answer

True

Question 17

Switch case statement is used when you only have one condition.

Accepted Answer

False

Question 18

#include using namespace std; int main(){ int num; cout<<"Enter a number:"; cin>>num; switch(num){ case 1: cout<<"RED"; break; } return 0; } What is the output of this program if y = -2?

Accepted Answer

No Match

Question 19

Consider the following switch statement:
int x = 4, y;
switch ( y % x )
{
case 0: x += y;
case 1: cout<<“x = ” << x;break;
case 2: y -= x;
case 3: cout<<“y = ” << y; break;
default: cout<<”No Match”;
}

Accepted Answer

No Match

Question 20

int a, b=2, c;
switch ( a/b )
{
case 0: a += b;
case 1: cout<<“a = ” << a;break;
case 2: c = a/b;
case 3: cout<<“c = ” << c;break;
default: cout<<”No Match”;
}
What is the output of this program if a = 16?

Accepted Answer

No Match

Question 21

int a, b=2, c;
switch ( a/b )
{
case 0: a += b;
case 1: cout<<“a = ” << a;break;
case 2: c = a/b;
case 3: cout<<“c = ” << c;break;
default: cout<<”No Match”;
}

What is the output of this program if a = 8 and b = 4?

Accepted Answer

c = 2

Question 22

Consider the following code snippet
if (x<50)
if(x>=20 && x<40)
 x+=25;
else
 x-=25;
else
 x++;
What will be the final value of x  if x=75?

Accepted Answer

76

Question 23

Determine the output of the given program segment.  
Assume the following initialization: int x = 5, y = 3; 
 if ( x < y || x - y < x )  {  
x *= y;       cout<<"x = " << x;   } 
else { 
 y += x;      cout<<"y = " << y;  }

Accepted Answer

x = 15

Question 24

Fill in the blank so people under 21 years are offered Grape Soda.
int age =  17 ;
if ( age  _________ 21 )
  cout<<"Care for some Grape Soda?";
else
  cout<<"How about a Brewski?";

Accepted Answer

<

Question 25

Consider the following code snippet
if (x<50)
       if(x>=20 && x<40)
              x+=25;
       else
              x-=25;
else
        x++;
What will be the final value of x  if x=25?

Accepted Answer

50

Question 26

Consider the following code snippet
if (x<50)
       if(x>=20 && x<40)
              x+=25;
       else
              x-=25;
else
        x++;
What will be the final value of x  if x=33?

Accepted Answer

58

Question 27

Consider the following code snippet
if (x<50)
       if(x>=20 && x<40)
              x+=25;
       else
              x-=25;
else
        x++;
What will be the final value of x  if x=69?

Accepted Answer

70

Question 28

Determine the output of the given program segment. 
Assume the following initialization: int x = 5, y = 3; 
if ( y < x && y – x < 0 ) { 
 x /= y;    y %= x;    
cout<<”x+y = “ <<x+y;  
}

Accepted Answer

x+y = 1

Question 29

int a,b,c,max;
max=a;
if(max<b)
     max=b;
if(max<c)
     max=c;
cout<<”Max: ”<< max;
What output do you think the code will produce if a is 99, b is 50, c is 20?

Accepted Answer

Max: 99

Question 30

To make the multiple statements become compound statement, enclosed the statements with brackets [].

Accepted Answer

False

Question 31

int x = 4, y;
switch ( y % x ){
case 0: x += y;
case 1: cout<<“x = ” << x;break;
case 2: y -= x;
case 3: cout<<“y = ” << y; break;
default: cout<<”No Match”;
}

What is the output of this program if y = 2?

Accepted Answer

y = -2

Question 32

How many choices are possible when using a switch case statement?

Accepted Answer

1 or more

Question 33

Which of the following must be present in the switch construct?

Accepted Answer

Expression in ( ) after switch

Question 34

If no break appears, the flow of control will fall through to subsequent cases until a break is reached

Accepted Answer

True

Question 35

Every case needs to contain a break

Accepted Answer

False

Question 36

What value is assigned to discount?
double discount;
string code = "A" ;
switch ( code )
{
  case 'A':
    discount = 0.0;break;
  case 'B':
    discount = 0.1;break;
  case 'C':
    discount = 0.2;break;
  default:
    discount = 0.3;
}

Accepted Answer

The program will not compile because code is the wrong type.

Question 37

Consider the following code snippet
switch (day)
{
case 1 : cout<<"Sunday";break;
case 2 : cout<< "Monday";break;
default : cout<<"Not an allowable day number";break;
}

What output do you think the code will produce if day is 20?

Accepted Answer

Not an allowable day number

Question 38

int a, b=2, c;
switch ( a/b )
{
case 0: a += b;
case 1: cout<<“a = ” << a;break;
case 2: c = a/b;
case 3: cout<<“c = ” << c;break;
default: cout<<”No Match”;
}

What is the output of this program if a = 5?

Accepted Answer

c = 2

Question 39

int number = 0; cout << “Number: “; cin >> number; if (number <= 100) number *= 2; else if (number > 500) number *= 3; If the user enters the integer 90, what value will be in the number variable after the code is processed?

Accepted Answer

180

Question 40

What does the following code fragment write to the monitor?
int sum =  21;
if ( sum == 20 )
{
  cout<<"You win ";
}
else
{
  cout<<"You lose  ";
}
  cout<<"the prize.";

Accepted Answer

You lose the prize.

Question 41

What does the following code fragment write to the monitor?
int height = 10;
if ( height <= 12 )
  cout<<"Low bridge: ";
cout<<"proceed with caution.";

Accepted Answer

Low bridge: proceed with caution.

Question 42

Consider the following code snippet if (x<50) if (x>=0 && x<=25) x+=25; else x-=25; else if (x>=75 && x <= 100) x-=25; else x+25; What will be the final value of x if x=25?

Accepted Answer

50

Question 43

What does the following code fragment write to the monitor?
int sum =  21;
if ( sum != 20 )
  cout<<"You win ";
else
  cout<<"You lose  ";
cout<<"the prize.";

Accepted Answer

You win the prize.

Question 44

What does the following code fragment write to the monitor?
int sum = 14;
if ( sum < 20 )
  cout<<"Under ";
else
{ 
  cout<<"Over  ";
  cout<<"the limit.";
}

Accepted Answer

Under

Question 45

Which of the following is not a program control structure?
selection
instantiation
repetition
invocation

Accepted Answer

instantiation

Question 46

The break statement causes an exit ________

Accepted Answer

from the innermost loop or switch.

Question 47

In switch if there is a match, the associated block of code is executed

Accepted Answer

True

CCS3 - Mod5

Reviewer

Question	Answer
Consider the following code snippet int a,b,c,max; max=a; if(max<b) max=b; if(max<c) max=c; cout<<”Max: ”<< max; What output do you think the code will produce if a is 10, b is 20, c is 30?	Max: 30
What does the following code fragment write to the monitor? int sum = 94; if ( sum < 20 ) { cout<<"Under "; cout<<"the limit."; } else { cout<<"Over "; cout<<"the limit."; }	Over the limit.
Assume the following initialization: x = 2, y = 3. Determine the output of the given segment of a program. if ( x >= y ) if( y >= 0 ) cout<<”y = “<<y; else cout<<”x = “<<x;	No screen output
What does the following code fragment write to the monitor? int sum = 14; if ( sum < 20 ) cout<<"Under "; else cout<<"Over "; cout<<"the limit.";	Under the limit.
Consider the following code snippet if (x<50) if (x>=0 && x<=25) x+=25; else x-=25; What will be the final value of x if x=33?	8
If none of the conditions is true in an if-ladder then the final else statement will be executed.	True
if (aNumber >= 0) if (aNumber == 0) cout<<"first string\n"; else cout<<”second string\n”; cout<<"third string"; What output do you think the code will produce if aNumber is 3?	second string third string
Whether the indentation exists or not, the compiler will, by default, associate an else with the closest previous unpaired if.	True
What is the variable used in the program? float grade;	grade
If grade = 68, what will be its output? if (grade>=95) { cout<<"Excellent"; else if(grade>=90) cout<<"Very Good"; else if(grade>=85) cout<<"Good"; else if(grade>=75) cout<<"Fair"; else cout<<"Study very well."; return 0; }	Study very well.
int x = 4, y; switch ( y % x ){ case 0: x += y; case 1: cout<<“x = ” << x;break; default: cout<<”No Match”; } What is the output of this program if y = 5?	x = 4
int id = 0; cout << “ID: “; cin >> id; switch (id) { case 3: case 5: cout << “Jerry”; break; default: cout<<"Sue"; What will be displayed when the user enters the number 3?	Jerry
The constant-expression for a case must be of different data type as the variable in the switch.	False
#include<iostream> using namespace std; int main(){ int num; cout<<"Enter a number:"; cin>>num; switch(num){ case 1: cout<<"RED";break; } return 0; } If num=-1, what will be its output?	No screen output
Which of the following must be present in the switch construct?	default
When you have the default keyword in your switch, you are required to place a break statement.	True
Switch case statement is used when you only have one condition.	False
#include<iostream> using namespace std; int main(){ int num; cout<<"Enter a number:"; cin>>num; switch(num){ case 1: cout<<"RED"; break; } return 0; } What is the output of this program if y = -2?	No Match
Consider the following switch statement: int x = 4, y; switch ( y % x ) { case 0: x += y; case 1: cout<<“x = ” << x;break; case 2: y -= x; case 3: cout<<“y = ” << y; break; default: cout<<”No Match”; }	No Match
int a, b=2, c; switch ( a/b ) { case 0: a += b; case 1: cout<<“a = ” << a;break; case 2: c = a/b; case 3: cout<<“c = ” << c;break; default: cout<<”No Match”; } What is the output of this program if a = 16?	No Match
int a, b=2, c; switch ( a/b ) { case 0: a += b; case 1: cout<<“a = ” << a;break; case 2: c = a/b; case 3: cout<<“c = ” << c;break; default: cout<<”No Match”; } What is the output of this program if a = 8 and b = 4?	c = 2
Consider the following code snippet if (x<50) if(x>=20 && x<40) x+=25; else x-=25; else x++; What will be the final value of x if x=75?	76
Determine the output of the given program segment. Assume the following initialization: int x = 5, y = 3; if ( x < y \|\| x - y < x ) { x *= y; cout<<"x = " << x; } else { y += x; cout<<"y = " << y; }	x = 15
Fill in the blank so people under 21 years are offered Grape Soda. int age = 17 ; if ( age _________ 21 ) cout<<"Care for some Grape Soda?"; else cout<<"How about a Brewski?";	<
Consider the following code snippet if (x<50) if(x>=20 && x<40) x+=25; else x-=25; else x++; What will be the final value of x if x=25?	50
Consider the following code snippet if (x<50) if(x>=20 && x<40) x+=25; else x-=25; else x++; What will be the final value of x if x=33?	58
Consider the following code snippet if (x<50) if(x>=20 && x<40) x+=25; else x-=25; else x++; What will be the final value of x if x=69?	70
Determine the output of the given program segment. Assume the following initialization: int x = 5, y = 3; if ( y < x && y – x < 0 ) { x /= y; y %= x; cout<<”x+y = “ <<x+y; }	x+y = 1
int a,b,c,max; max=a; if(max<b) max=b; if(max<c) max=c; cout<<”Max: ”<< max; What output do you think the code will produce if a is 99, b is 50, c is 20?	Max: 99
To make the multiple statements become compound statement, enclosed the statements with brackets [].	False
int x = 4, y; switch ( y % x ){ case 0: x += y; case 1: cout<<“x = ” << x;break; case 2: y -= x; case 3: cout<<“y = ” << y; break; default: cout<<”No Match”; } What is the output of this program if y = 2?	y = -2
How many choices are possible when using a switch case statement?	1 or more
Which of the following must be present in the switch construct?	Expression in ( ) after switch
If no break appears, the flow of control will fall through to subsequent cases until a break is reached	True
Every case needs to contain a break	False
What value is assigned to discount? double discount; string code = "A" ; switch ( code ) { case 'A': discount = 0.0;break; case 'B': discount = 0.1;break; case 'C': discount = 0.2;break; default: discount = 0.3; }	The program will not compile because code is the wrong type.
Consider the following code snippet switch (day) { case 1 : cout<<"Sunday";break; case 2 : cout<< "Monday";break; default : cout<<"Not an allowable day number";break; } What output do you think the code will produce if day is 20?	Not an allowable day number
int a, b=2, c; switch ( a/b ) { case 0: a += b; case 1: cout<<“a = ” << a;break; case 2: c = a/b; case 3: cout<<“c = ” << c;break; default: cout<<”No Match”; } What is the output of this program if a = 5?	c = 2
int number = 0; cout << “Number: “; cin >> number; if (number <= 100) number = 2; else if (number > 500) number = 3; If the user enters the integer 90, what value will be in the number variable after the code is processed?	180
What does the following code fragment write to the monitor? int sum = 21; if ( sum == 20 ) { cout<<"You win "; } else { cout<<"You lose "; } cout<<"the prize.";	You lose the prize.
What does the following code fragment write to the monitor? int height = 10; if ( height <= 12 ) cout<<"Low bridge: "; cout<<"proceed with caution.";	Low bridge: proceed with caution.
Consider the following code snippet if (x<50) if (x>=0 && x<=25) x+=25; else x-=25; else if (x>=75 && x <= 100) x-=25; else x+25; What will be the final value of x if x=25?	50
What does the following code fragment write to the monitor? int sum = 21; if ( sum != 20 ) cout<<"You win "; else cout<<"You lose "; cout<<"the prize.";	You win the prize.
What does the following code fragment write to the monitor? int sum = 14; if ( sum < 20 ) cout<<"Under "; else { cout<<"Over "; cout<<"the limit."; }	Under
Which of the following is not a program control structure? selection instantiation repetition invocation	instantiation
The break statement causes an exit ________	from the innermost loop or switch.
In switch if there is a match, the associated block of code is executed	True

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