CS201 Mid Term Solved Paper 2009 - 2

MIDTERM  EXAMINATION

Spring 2009

CS201- Introduction to Programming

Question No: 1      ( M a r k s: 1 ) http://vuzs.net

A precise sequence of steps to solve a problem is called

► Statement

► Program

► Utility

► Routine

Question No: 2      ( M a r k s: 1 ) http://vuzs.net

The Compiler of C language is written in

► Java Language

► UNIX

► FORTRON Language

► C Language

The C language is so powerful that the compiler of C and other various operating systems are written in C.

Question No: 3      ( M a r k s: 1 ) http://vuzs.net

Initialization of variable at the time of definition is,

► Must

► Necessary

► Good Programming

► None of the given options

Question No: 4      ( M a r k s: 1 ) http://vuzs.net

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      ( M a r k s: 1 ) http://vuzs.net

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      ( M a r k s: 1 ) http://vuzs.net

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

► True

► False

Question No: 7      ( M a r k s: 1 ) http://vuzs.net

Pointer is a variable which store,

► Data

► Memory Address

► Data Type

► Values

Question No: 8      ( M a r k s: 1 ) http://vuzs.net

Preprocessor program perform its function before ______ phase takes place.

► Editing

► Linking

► Compiling

► Loading

The C preprocessor modifies a source code file before handing it over to the compiler. You're most likely used to using the preprocessor to include files directly into other files,

Question No: 9      ( M a r k s: 1 ) http://vuzs.net

Which of the following can not be a variable name?

► area

► _area

► 10area

► area2

Question No: 10      ( M a r k s: 1 ) http://vuzs.net

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      ( M a r k s: 1 ) http://vuzs.net

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

► new line

► tab

► null

► carriage return

null character inserted at the end of the string by C automatically

 

Question No: 12      ( M a r k s: 1 ) http://vuzs.net

How many bytes are occupied by declaring following array of characters?

char str[] = “programming”;

► 10

► 11

► 12

► 13

11 plus one for null char (11+1= 12)

Question No: 13      ( M a r k s: 1 ) http://vuzs.net

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

► iostream.h

► conio.h

► stdlib.h

► stdio.h

The function is rand() and is in the standard library. To access this function, we need to include <stdlib.h> library in our program. This function will return a random number. The number can be between 0 and 32767.

Question No: 14      ( M a r k s: 1 ) http://vuzs.net

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      ( M a r k s: 1 ) http://vuzs.net

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      ( M a r k s: 1 ) http://vuzs.net

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      ( M a r k s: 1 )

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

They belong to system software.

There are two type of system software

1. Operating system
2. Language translators.

These are part of language translators

Question No: 18      ( M a r k s: 1 )

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

12

first multiplies 3*4 = 12 then Division  4/2 = 2

2+12-2 = 12

Question No: 19      ( M a r k s: 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.

float tmp [10] = {1.0,2.0,3.0,4.0};

Question No: 20      ( M a r k s: 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;

answer: 21

Loop will run  times starts from zero and add values from 1 to 6 which is equal to 21

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] << "  ";

}

2 4 6 8 0

Loops will run 5 times as its starting from zero. It will multiply the value of each item in array as last time is not initialized so it will multiply it with zero to give zero as output

Question No: 22      ( M a r k s: 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.”