Centre for Development of Advanced Computing is the premier R&D organization of the Department of Electronics and Information Technology, Ministry of Communications & Information Technology for carrying out R&D in IT, Electronics and associated areas

Exam selection process:
The selection process of the company consists of 3 rounds:

Written Exam
Technical Interview
HR Interview


C-DAC Paper Pattern

1. What is data structure?

2. List out the areas in which data structures are applied extensively?
Compiler Design,
Operating System,
Database Management System,
Statistical analysis package,
Numerical Analysis,
Graphics,
Artificial Intelligence,
Simulation

3. What are the major data structures used in the following areas : RDBMS, Network data model & Hierarchical data model.
RDBMS ?? Array (i.e. Array of structures)
Network data model ?? Graph
Hierarchical data model ?? Trees

4. If you are using C language to implement the heterogeneous linked list, what pointer type will you use?

5. Minimum number of queues needed to implement the priority queue? Two. One queue is used for actual storing of data and another for storing priorities.

6. What is the data structures used to perform recursion?

CDAC Placement Paper and Sample Paper

1.The programming language that was designed for specifying algorithm
Address
ASCII
ALGOL
None of these options

2. _____ contains the addresses of all the records according to the contents of the field designed as the record key.
Index<------ans
Subscript
Array
File

3. _________ symbol is used for Processing of data.
Oval
Parallelogram<------ans
Rectangle
Diamond

4. __________ is the analysis tool used for planning program logic
Protocol
None of these options
PROLOG
Pseudocode

5. Machine language has two part format the first part is__________ and the second part is __________
OPCODE,OPERAND<------ans
OPERAND,OPCODE
DATA CODE,OPERAND
OPERAND,CODEOP

6. Language Primarily used for internet-based applications
ADA
C++
JAVA<------ans
FORTRAN

7. _________ is a point at which the debugger stops during program execution and awaits a further command.
Memory Dump
Watch point<------ans
Break point
None of these options

8. ________do not contain any program logic and are ignored by the language processor.
Protocol
Virus
Comment
None of these options

9. The component of data base management system is ________
Data definition Language
Data manipulation Language
Data definition Language and Data manipulation Language
None of these options

10. The quality of Algorithm is judged on the basis of_________
Time requirement
Memory Requirement
Accuracy of solution
All of these options<------ans

11. Advantages of using flow charts is
Effective Analysis
Efficient Coding
Time consuming
Effective Analysis and Efficient Coding<-----ans

Programming in C

12. The Real constants in C can be expressed in which of the following forms
Fractional form only
Exponential form only
ASCII form only
Both Fractional and Exponential forms<------ans

13. The program, which translates high-level program into its equivalent machine language program, is called
Transformer
Language processor
Converter
None of these options<------ans

14. Consider the following statements.
i.Multiplication associates left to right
ii.Division associates left to right
iii.Unary Minus associates right to left
iv.subtraction associates left to right All are true <------ans
Only i and ii are true
All are false
Only iii and iv are true

15. What will be the value of variable a in the following code?
unsigned char a;
a = 0xFF + 1;
printf("%d", a);
0xFF
0x100
0 <------ans
0x0

16. What is the output of the following program?
#include
void main()
{
printf("
10!=9 : %5d",10!=9);
}
1<------ans
0
Error
None of these options

17. #include
void main()
{
int x=10;
(x<0)?(int a =100)int a =1000);
printf(" %d",a);
}
Error<------ans
1000
100
None of these options

18. Which of the following shows the correct hierarchy of arithmetic operations in C
(), **, * or /, + or -
(), **, *, /, +, -
(), **, /, *, +, -
(), / or *, - or + <-----ans

19. What is the output of the following code?
#include
void main()
{
int a=14;
a += 7;
a -= 5;
a *= 7;
printf("
%d",a);
}
112<------ans
98
89
None of these options

20. What is the output of the following code? #include
#define T t
void main()
{
char T = `T`;
printf("
%c %c
",T,t);
}
Error
T t
T T---ans
t t
CDAC Paper - Part 2

21. The statement that prints out the character set from A-Z, is
for( a = `z`; a < `a`; a = a - 1)
printf("%c", &a);
for( a = `a`; a <= `z`; a = a + 1
printf("%c", &a);
for( a = `A`; a <= `Z`; a = a + 1)<----Ans printf("%c", a);
for( a = `Z`; a <= `A`; a = a + 1)
printf("%c", a);

22. The statement which prints out the values 1 to 10 on separate lines, is
for( count = 1; count <= 10; count = count + 1) printf("%d
",count);
for( count = 1; count < 10; count = count + 1) printf("%d
",count);<------ans
for( count = 0; count <= 9; count = count + 1) printf("%d ",count);
for( count = 1; count <> 10; count = count + 1) printf("%d
",count);

23. What does the term `call-by-reference` refer to?
Passing a copy of a variable into a function. Passing a pointer to a variable into a function. <------ans
Choosing a random value for a variable.
A function that does not return any values.

24. What is the output of the following code? #include
void swap(int&, int&);
void main()
{
int a = 10,b=20;
swap (a++,b++);
printf("
%d %d ",a, b);
}
void swap(int& x, int& y)
{
x+=2;
y+=3;
}
14, 24
11, 21 <------ans
10, 20
Error

25. What is the output of the following program code

#include
void abc(int a[])
{
a++;
a[1]=612;
}
main()
{
char a[5];
abc(a);
printf("%d",a[4]);
}
100
612
Error<------ans
None of these options

26. which of the following is true about recursive function
i. it is also called circular definition
ii. it occurs when a function calls another function more than once
iii. it occurs when a statement within the function calls the function itself

iv. a recursive function cannot have a return statement within it"
i and iii<------ans
i and ii
ii and iv
i, iii and iv

27.What will happen if you assign a value to an element of an array whose subscript exceeds the size of the array?
The element will be set to 0
Nothing, its done all the time
Other data may be overwritten
Error message from the compiler

28. What is the output of the following code? #include
void main()
{
int arr[2][3][2]={{{2,4},{7,8},{3,4},}, {{2,2},{2,3},{3,4}, }}; printf("
%d",**(*arr+1)+2+7);
}
16 <------ans
7
11
Error

29. If int s[5] is a one dimensional array of integers, which of the following refers to the third element in the array?
*( s + 2 ) <------ans
*( s + 3 )
s + 3
s + 2

30. #include"stdio.h"
main()
{
int *p1,i=25;
void *p2;
p1=&i;
p2=&i;
p1=p2;
p2=p1;
printf("%d",i);
}
The output of the above code is :
Program will not compile <------ans
25
Garbage value
Address of I