CS 201 mid paper

Monday, May 31, 2010
CS201 MID 31May2010

MIDTERM EXAMINATION
Spring 2010
CS201- Introduction to Programming

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


C language is developed by

► Bill Gates

► Robert Lafore

► Dennis Ritchie

► Deitel & Deitel



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


Which of the following choice is not an example of an int datatype?

► 0

► -32

► 65531

► -4.0



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


In flow chart, the symbol used for decision making is,

► Rectangle

► Circle

► Arrow

► Diamond



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


Switch statement deals with,

► Integer data only

► float data only

► character data only

► Integer and character data



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


Default case in switch statement is,

► Must

► Optional

► syntax error

► Necessary



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


*.doc is _____________ by type.
.


► Sequential File


► Random Access File


► Data File


► Record File





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


Member function tellg() returns the current location of the ­­_____________ pointer.

► tellptr()


► write()


► seekg()


► get()





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


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


► True

► False



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


In C/C++ all character strings are terminated with,

► Null character

► String

► Zero

► Full stop



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


Word processor is


► Operating system

► Application software

► Device driver

► Utility software



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


Which of the following can not be a variable name?

► area

► _area

► 10area

► area2



Question No: 12 ( 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: 13 ( Marks: 1 ) - Please choose one


By default an array of characters is passed by value to a function,


► True

► False



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


Which of the following operator is used to access the address of a variable?



► * operator


► -> operator


► && operator

► & operator



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


The name of an array represents address of first location of array element.


► True

► False



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


Let suppose

Union intorDouble{
Int ival;
Double charvar;
};

main(){
intorDouble VAZ;
int size ;
size = sizeof(VAZ);
}

What will be the value of variable "size", if int occupies 4 bytes and double occupies 8 bytes?


► 2

► 4

► 8

► 12



Question No: 17 ( Marks: 2 )


What is the difference between for loop and while loop?



Question No: 18 ( Marks: 2 )


Consider the structure

struct Customer
{
int custnum;
int salary;
float commission;
};

A programmer wants to assign 2000 for the structure member salary in the above example of structure Customer with structure variable cust1 What line of code should he write



Question No: 19 ( Marks: 2 )


When a pointer is incremented then how many bytes will it move to change its address?



Question No: 20 ( Marks: 3 )


If there are 2n elements in an array then what would be the number of iterations required to search a number using binary search and linear search?



Question No: 21 ( Marks: 3 )


Perform left shift operation on a binary number 0101 and write the result in binary and decimal.



Question No: 22 ( Marks: 5 )


What will be the output of following code segment?
void func(int [], int);
main(){
int arr[5] = {2, 3, 5, 6, 7} ;
func(arr, 5) ;

for (int i = 0; i<5; i++)
cout << arr[i] << “ ”;
}
void func(int a[], int size){
for (int i = 0; i<="" span="">
a[i] = 2*a[i];
}



Question No: 23 ( Marks: 5 )


What is random access file and how data can be read and write into random access file?