Scholars: MIDTERM EXAMINATION Spring 2009 CS201- Introduction to Programming

MIDTERM EXAMINATION
Spring 2009 CS201- Introduction to Programming

Question No: 1 ( Marks: 1 ) - Please choose one_______
There are mainly------------------- types of software
Two
Three
Four
Five
Question No: 2 ( Marks: 1 ) - Please choose one____
In C/C++ the #include is called,
Header file
Preprocessor Directive
Statement
Function
Question No: 3 ( Marks: 1 ) - Please choose one___________
&& is------------------ operator.
An arithmetic
Logical
Relational
Unary
Question No: 4 ( Marks: 1 ) - Please choose one_______
In flow chart, the symbol used for decision making is,
Rectangle
Circle
Arrow
Diamond
Question No: 5 ( Marks: 1 ) - Please choose one______
The correct syntax of do-while loop is,
(condition ) while; do { statements; };
{ statements; } do-while ();
while(condition); do { statements; };
do { statements; } while (condition);
Question No: 6 ( Marks: 1 ) - Please choose one___________
C++ views each file as a sequential stream of________________ .
Bytes
Bits
0’s or 1’s
Words
Question No: 7 ( Marks: 1 ) - Please choose one__________________
If the elements of an array are already sorted then the useful search algorithm is,
Linear search
Binary search
Quick search
Random search
Question No: 8 ( Marks: 1 ) - Please choose one___________
The address operator (&) can be used with,
Statement
Expression
Variable
Constant
Question No: 9 ( Marks: 1 ) - Please choose one_______________
When a pointer is incremented, it actually jumps the number of memory addresses
According to data type
1 byte exactly
1 bit exactly
A pointer variable can not be incremented
Question No: 10 ( Marks: 1 ) - Please choose one______________
Each pass through a loop is called a/an
enumeration
iteration
culmination
pass through
Question No: 11 ( Marks: 1 ) - Please choose one_____________
Call by reference mechanism should be used in a program when there is
i. large amount of data to be passed
ii. small amount of data to be passed
iii. need to change the passed data
iv. no need to change the passed data
Choose the appropriate option for the above case.
(i) and (ii) only
(i) and (iii) only
(ii) and (iii) only
(ii) and (iv) only
Question No: 12 ( Marks: 1 ) - Please choose one________
Which of the following is the starting index of an array in C++?
0
1
-1
any number
Question No: 13 ( Marks: 1 ) - Please choose one________
The return type of a function that do not return any value must be __________
int
void
double
float
Question No: 14 ( Marks: 1 ) - Please choose one_________
Which of the following is an extension of header file?
.exe
.txt
.h
.c
Question No: 15 ( Marks: 1 ) - Please choose one__________
We want to access array in random order which approach is better?
Pointers
Array index
Both pointers and array index are better
None of the given options.
Question No: 16 ( Marks: 1 ) - Please choose one____________
When we declare a multidimensional array the compiler store the elements of multidimensional array in the form of,
Columns
Rows
Contiguous memory location
Matrix
Question No: 17 ( Marks: 1 )__________
What is the output of the following program?
#include iostream.h
main ( ) {
int RollNo;
int rollno;
RollNo = 5;
rollno = 8;
cout << “Roll No is ” << rollno; }

Solution:
Program should not compile due to missing <> from following statement
#include iostream.h
if we ignore this then output should be
Roll No is 8
Question No: 18 ( Marks: 1 )_____________________
Why we include iostream.h in our programs?
Solution:
Because standard stream handling function are stored in this file. Before using these function in our program it is necessary to tell compiler about the location of these
functions.
Question No: 19 ( Marks: 2 )
Find out error in the code given below:
if ( num % 2 = 0 )
cout << "The number is even" << endl;
Solution:
if ( num % 2 = 0 ) There should be extra = sign following is right statement
if ( num % 2 = =0 )
Question No: 20 ( Marks: 3 )
How learning to design programs is like learning to play soccer?
Solution:
“Learning to design programs is like learning to play soccer. A player must learn to trap a ball, to dribble with a ball, to pass, and to shoot a ball. Once the player knows those basic skills, the next goals are to learn to play a position, to play certain strategies, to choose among feasible strategies, and, on occasion, to create variations of a strategy because none fits. “
Question No: 21 ( Marks: 5 )
Write the procedure of data insertion in middle of the files by Merge Method practiced in older systems?
Solution:
Opened the data file and a new empty file.
Started reading the data file from beginning of it.
Kept on copying the read data into the new file until the location we want to insert data into is reached.
Inserted (appended) new data in the new file.
Skipped or jumped the data in the data file that is to be overwritten or replaced.
Copied (appended) the remaining part of the file at the end of the new file
Question No: 22 ( Marks: 10 )
Write a recursive function that takes three arguments (an integer array, starting subscript‘s’ and ending subscript ‘e’ ).
In first recursive call, the function should display the array from subscript‘s’ (s = 0) to ‘e’ (e = size of array). In each successive call, the function should print the array from index s+1 to e. T function should stop processing and return when starting subscript becomes equal to ending subscript.
For example, if user enters values for array 2, 3, 4, 5, 6 then the recursive function must display the following output.
2 3 4 5 6
3 4 5 6
4 5 6
5 6
6
Solution:
#include <iostream.h>;
void PrintArray(int arrayInput[], int &s, int &e);
main ( )
{
int pause;
int TestArray [6] = {1,2,3,4,5,6};
int StartPoint = 0;
int EndPoint = 5;
PrintArray(TestArray , StartPoint, EndPoint);
cout<<"\n";
PrintArray(TestArray , StartPoint, EndPoint);
cout<<"\n";
PrintArray(TestArray , StartPoint, EndPoint);
cout<<"\n";
PrintArray(TestArray , StartPoint, EndPoint);
cout<<"\n";
PrintArray(TestArray , StartPoint, EndPoint);
cout<<"\n";
PrintArray(TestArray , StartPoint, EndPoint);
cin >> pause;
}
void PrintArray(int arrayInput[], int& s, int& e)
{
for (int i = s; i<= e; i++)
{
cout<< arrayInput[i];
}
s=s+1;
}

MIDTERM EXAMINATION
Spring 2009
CS201- Introduction to Programming

Question No: 1 ( Marks: 1 ) - Please choose one
The function of cin is
To display message
To read data from keyboard
To display output on the screen
To send data to printer
Question No: 2 ( Marks: 1 ) - Please choose one
In C/C++ language the header file which is used to perform useful task and manipulation of character data is
cplext.h
ctype.h
stdio.h
delay.h
Question No: 3 ( Marks: 1 ) - Please choose one
How many parameter(s) function getline() takes?
0
1
2
3
Question No: 4 ( Marks: 1 ) - Please choose one
Word processor is
Operating system
Application software
Device driver
Utility software
Question No: 5 ( Marks: 1 ) - Please choose one
For which values of the integer _value will the following code becomes an infinite loop?
int number=1;
while (true) {
cout << number;
if (number == 3) break; http://vustudents.ning.com
http://vustudents.ning.com
number += integer_value; }
any number other than 1 or 2
only 0
only 1
only 2
Question No: 6 ( Marks: 1 ) - Please choose one
Each pass through a loop is called a/an
enumeration
Iteration
culmination
pass through
Question No: 7 ( Marks: 1 ) - Please choose one
A continue statement causes execution to skip to
the return 0; statement
the first statement after the loop
the statements following the continue statement
the next iteration of the loop
Question No: 8 ( Marks: 1 ) - Please choose one
What is the correct syntax to declare an array of size 10 of int data type?
int [10] name ;
name[10] int ;
int name[10] ;
int name[] ;
Question No: 9 ( Marks: 1 ) - Please choose one
Consider the following code segment. What will the following code segment display?
int main(){
int age[10] = {0};
cout << age ;
}
Values of all elements of array
Value of first element of array
Starting address of array
Address of last array element
Question No: 10 ( Marks: 1 ) - Please choose one
What will be the correct syntax to initialize all elements of two-dimensional array to value 0?
int arr[2][3] = {0,0} ;
int arr[2][3] = {{0},{0}} ;
int arr[2][3] = {0},{0} ; http://vustudents.ning.com
int arr[2][3] = {0} ;
Question No: 11 ( Marks: 1 ) - Please choose one
How many bytes will the pointer intPtr of type int move in the following statement?
intPtr += 3 ;
3 bytes
6 bytes
12 bytes
24 bytes
Question No: 12 ( Marks: 1 ) - Please choose one
If there are 2(n+1) elements in an array then what would be the number of iterations required to search a number using binary search algorithm?
n elements
(n+1) elements
2(n+1) elements
2(n+1) elements
Question No: 13 ( Marks: 1 ) - Please choose one
Which of the following operator is used to access the value of variable pointed to by a pointer?
* operator
-> operator
&& operator
& operator
Question No: 14 ( Marks: 1 ) - Please choose one
The ________ statement interrupts the flow of control.
switch
continue
goto
break
Question No: 15 ( Marks: 1 ) - Please choose one
Analysis is the -------------- step in designing a program
Last
Middle
Post Design
First
Question No: 16 ( Marks: 1 ) - Please choose one
Paying attention to detail in designing a program is _________
Time consuming
Redundant
Necessary
Somewhat Good
Question No: 17 ( Marks: 1 )
Which programming tool is helpful in tracing the logical errors?
Solution:
Debugger is used to debug the program.
Question No: 18 ( Marks: 1 )
Give the syntax of opening file ‘myFile.txt’ with ‘app’ mode using ofstream variable ‘out’.
Solution:
out.open(“myfile.txt” , ios::app);
Question No: 19 ( Marks: 2 )
What is the difference between switch statement and if statement.
Solution:
The if statement is used to select among two alternatives. It uses a boolean expression to decide which alternative should be executed. The switch statement is used to select among multiple alternatives. It uses an int expression to determine which alternative should be executed.
Question No: 20 ( Marks: 3 )
Identify the errors in the following code segment and give the reason of errors.
main(){
int x = 10
const int *ptr = &x ;
*ptr = 5 ;
}
Solution:
Error: *ptr = 5;
Reason: declaring a pointer to a constant Integer. You cannot use this pointer to change the value being pointed to:
Question No: 21 ( Marks: 5 )
If int array[10]; is an integer array then write the statements which will store values at Fifth and Ninth location of this array,
Solution:
arrary[4] = 200;
arrary[8] = 300;
Question No: 22 ( Marks: 10 )
Write a function BatsmanAvg which calculate the average of a player (Batsman), Call this function in main program (Function). Take the input of Total Runs made and Total number of matches played from the user in main function
Solution:

#include <iostream.h> // allows program to output data to the screen
// function main begins program execution
int BatsmanAvg(int TotalRuns, int TotalMatches) ;
main()
{
int stopit;
int TotalRuns, TotalMatchesPlayed =0;
cout << "Please Entere the total Runs made : " ;
cin>> TotalRuns ;
cout << "Please Entere the total match played : " ;
cin>> TotalMatchesPlayed ;
cout << "\n Avg Runs = " << BatsmanAvg(TotalRuns,TotalMatchesPlayed);
cin>> stopit; //pause screen to show output
}
int BatsmanAvg(int TotalRuns, int TotalMatches)
{
return TotalRuns/TotalMatches;
}

MIDTERM EXAMINATION
Spring 2009
CS201- Introduction to Programming
Ref No: 440120
Time: 60 min
Marks: 38

Question No: 1 ( Marks: 1 ) - Please choose one

The function of cin is

   ► To display message

   ► To read data from keyboard

   ► To display output on the screen

   ► To send data to printer

Question No: 2 ( Marks: 1 ) - Please choose one

In C/C++ language the header file which is used to perform useful task and manipulation of character data is

   ► cplext.h

   ► ctype.h

   ► stdio.h

   ► delay.h

Question No: 3 ( Marks: 1 ) - Please choose one

How many parameter(s) function getline() takes?

   ► 0

   ► 1

   ► 2

   ► 3

Question No: 4 ( Marks: 1 ) - Please choose one

Word processor is

   ► Operating system

   ► Application software

   ► Device driver

   ► Utility software

Question No: 5 ( Marks: 1 ) - Please choose one

For which values of the integer _value will the following code becomes an infinite loop?

int number=1;
while (true) {
cout << number;
if (number == 3) break;
number += integer_value; }

   ► any number other than 1 or 2

   ► only 0

   ► only 1

   ► only 2

Question No: 6 ( Marks: 1 ) - Please choose one

Each pass through a loop is called a/an

   ► enumeration

   ► Iteration

   ► culmination

   ► pass through

Question No: 7 ( Marks: 1 ) - Please choose one

A continue statement causes execution to skip to

   ► the return 0; statement

   ► the first statement after the loop

   ► the statements following the continue statement

   ► the next iteration of the loop

Question No: 8 ( Marks: 1 ) - Please choose one

What is the correct syntax to declare an array of size 10 of int data type?

   ► int [10] name ;

   ► name[10] int ;

   ► int name[10] ;

   ► int name[] ;

Question No: 9 ( Marks: 1 ) - Please choose one

Consider the following code segment. What will the following code segment display?

int main(){
int age[10] = {0};
cout << age ;
}

   ► Values of all elements of array

   ► Value of first element of array

   ► Starting address of array

   ► Address of last array element

Question No: 10 ( Marks: 1 ) - Please choose one

What will be the correct syntax to initialize all elements of two-dimensional array to value 0?

   ► int arr[2][3] = {0,0} ;

   ► int arr[2][3] = {{0},{0}} ;

   ► int arr[2][3] = {0},{0} ;

   ► int arr[2][3] = {0} ;

Question No: 11 ( Marks: 1 ) - Please choose one

How many bytes will the pointer intPtr of type int move in the following statement?
intPtr += 3 ;

   ► 3 bytes

   ► 6 bytes

   ► 12 bytes

   ► 24 bytes

Question No: 12 ( Marks: 1 ) - Please choose one

If there are 2(n+1) elements in an array then what would be the number of iterations required to search a number using binary search algorithm?

   ► n elements

   ► (n+1) elements

   ► 2(n+1) elements

   ► 2(n+1) elements

Question No: 13 ( Marks: 1 ) - Please choose one

Which of the following operator is used to access the value of variable pointed to by a pointer?

   ► * operator

   ► -> operator

   ► && operator

   ► & operator

Question No: 14 ( Marks: 1 ) - Please choose one

The ________ statement interrupts the flow of control.

   ► switch

   ► continue

   ► goto

   ► break

Question No: 15 ( Marks: 1 ) - Please choose one

Analysis is the -------------- step in designing a program

   ► Last

   ► Middle

   ► Post Design

   ► First

Question No: 16 ( Marks: 1 ) - Please choose one

Paying attention to detail in designing a program is _________

   ► Time consuming

   ► Redundant

   ► Necessary

   ► Somewhat Good

Question No: 17 ( Marks: 1 )

Which programming tool is helpful in tracing the logical errors?

Question No: 18 ( Marks: 1 )

Give the syntax of opening file ‘myFile.txt’ with ‘app’ mode using ofstream variable ‘out’.

Question No: 19 ( Marks: 2 )

What is the difference between switch statement and if statement.

Question No: 20 ( Marks: 3 )

Identify the errors in the following code segment and give the reason of errors.
main(){
int x = 10
const int *ptr = &x ;
*ptr = 5 ;
}

Question No: 21 ( Marks: 5 )

If int array[10]; is an integer array then write the statements which will store values at Fifth and Ninth location of this array,

Question No: 22 ( Marks: 10 )

Write a function BatsmanAvg which calculate the average of a player (Batsman), Call this function in main program (Function). Take the input of Total Runs made and Total number of matches played from the user in main function



MIDTERM EXAMINATION
Spring 2009
CS201- Introduction to Programming

Question No: 1 ( Marks: 1 ) - Please choose one

A precise sequence of steps to solve a problem is called

   ► Statement

   ► Program

   ► Utility

   ► Routine

Question No: 2 ( Marks: 1 ) - Please choose one

The Compiler of C language is written in

   ► Java Language

   ► UNIX

   ► FORTRON Language

   ► C Language

Question No: 3 ( Marks: 1 ) - Please choose one

Initialization of variable at the time of definition is,

   ► Must

   ► Necessary

   ► Good Programming

   ► None of the given options

Question No: 4 ( Marks: 1 ) - Please choose one

In if structure the block of statements is executed only,

   ► When the condition is false

   ► When it contain arithmetic operators

   ► When it contain logical operators

   ► When the condition is true

Question No: 5 ( Marks: 1 ) - Please choose one

Which of the following function(s) is/are included in stdlib.h header file?

   ► double atof(const char *nptr)

   ► int atoi(const char *nptr)

   ► char *strcpy ( char *s1, const char *s2)

   ► 1 and 2 only

Question No: 6 ( Marks: 1 ) - Please choose one

Dealing with structures and functions passing by reference is the most economical method

   ► True

   ► False

Question No: 7 ( Marks: 1 ) - Please choose one

Pointer is a variable which store,

   ► Data

   ► Memory Address

   ► Data Type

   ► Values

Question No: 8 ( Marks: 1 ) - Please choose one

Preprocessor program perform its function before ______ phase takes place.

   ► Editing

   ► Linking

   ► Compiling

   ► Loading

Question No: 9 ( Marks: 1 ) - Please choose one

Which of the following can not be a variable name?

   ► area

   ► _area

   ► 10area

   ► area2

Question No: 10 ( Marks: 1 ) - Please choose one

Which looping process is best, when the number of iterations is known?

   ► for

   ► while

   ► do-while

   ► all looping processes require that the iterations be known

Question No: 11 ( Marks: 1 ) - Please choose one

Which character is inserted at the end of string to indicate the end of string?

   ► new line

   ► tab

   ► null

   ► carriage return

Question No: 12 ( Marks: 1 ) - Please choose one

How many bytes are occupied by declaring following array of characters?
char str[] = “programming”;

   ► 10

   ► 11

   ► 12

   ► 13

Question No: 13 ( Marks: 1 ) - Please choose one

Which of the following header file defines the rand() function?

   ► iostream.h

   ► conio.h

   ► stdlib.h

   ► stdio.h

Question No: 14 ( Marks: 1 ) - Please choose one

Commenting the code _____________________

   ► Makes a program easy to understand for others.

   ► Make programs heavy, i.e. more space is needed for executable.

   ► Makes it difficult to compile

   ► All of the given options.

Question No: 15 ( Marks: 1 ) - Please choose one

What's wrong with this for loop?
  for (int k = 2, k <=12, k++)

   ► the increment should always be ++k

   ► the variable must always be the letter i when using a for loop

   ► there should be a semicolon at the end of the statement

   ► the commas should be semicolons

Question No: 16 ( Marks: 1 ) - Please choose one

For which array, the size of the array should be one more than the number of elements in an array?

   ► int

   ► double

   ► float

   ► char

Question No: 17 ( Marks: 1 )

To Which category of the software “Compiler and Interpreter” belongs?

Question No: 18 ( Marks: 1 )

What is the result of the expression x = 2 + 3 * 4 – 4 / 2

Question No: 19 ( Marks: 2 )

Write a declaration statement for an array of 10 elements of type float. Include an initialization statement of the first four elements to 1.0, 2.0, 3.0 and 4.0.

Question No: 20 ( Marks: 3 )

Write down the output of the following code?

int array[7], sum = 0;
   for(int i=0;i<7;i++)
   {
   array[i] = i;
   sum+= array[i];
}
   cout<< “ Sum = “ <<sum;

What will be the output of the following segment of C++ code?
int A[5] = {1 , 2, 3, 4};
int i;
for (i=0; i<5; i++)
{
  A[i] = 2*A[i];
  cout << A[i] << " ";
}

Question No: 22 ( Marks: 10 )

Write a C++ program that will determine if a departmental store customer has exceeded the credit limit on a charge account.
Program should input the following facts in five variables

1. Account number
2. Balance at the beginning of month (Beginning balance)
3. total of all items charged by customer this month (charges)
4. total of all credits (credits)
5. allowed credit limit

Calculate the new balance
New balance = Beginning balance + charges – credits
Determine if new balance exceeds the allowed credit limit. For those customers whose credit limit is exceeded. The program should display the message “Credit Limit exceeded.”

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