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CDAC Technical Placement Papers

Company: CDAC

CDAC Technical Placement Papers C, C++

C-Dac Sample quesion paper – pattern 1

Fundamentals of Programming
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 0×100 0 <——
ans 0×0

16. What is the output of the following program? #include
void main()
{
printf(”n10!=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(”n%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(”n%ct%cn”,T,t);
}
Error
T t
T T
t t

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(”%dn”,count); for( count = 1; count < 10; count = count + 1) printf(”%dn”,count);<——
ans for( count = 0; count <= 9; count = count + 1) printf(”%d “,count); for( count = 1; count <> 10; count = count + 1) printf(”%dn”,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(”n%dt%dt”,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(”n%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

31. What is the output of the following code? void main() { int i = 100, j = 200; const int *p=&i; p = &j; printf(”%d”,*p); } 100 200 <——
ans 300 None of the above

32. void main() { int i=3; int *j=&i; clrscr(); printf(”%d%d”,++*j,*(&i)); } What is the output of this program? 3 3 4 3 <——
ans 4,address of i printed Error:Lvalue required

33. What is the output of the following code? #include
void main()
{
int arr[] = {10,20,30,40,50};
int *ptr = arr;
printf(”n %dt%dt”,*ptr++,*ptr);
}
10 20
10 10<——
ans 20 20 20 10

34. Which of these are reasons for using pointers?
1.To manipulate parts of an array
2.To refer to keywords such as for and if
3.To return more than one value from a function
4.To refer to particular programs more conveniently 1 & 3 <——
ans Only 1 Only 3 All of the above

35. struct num { int no; char name[25]; }; void main() { struct num n1[]={{25,”rose”},{20,”gulmohar”}, {8,”geranium”},{11,”dahalia”}}; printf(”%d%d” ,n1[2].no,(*&n1+2)->no+1);
}
What is the output of this program?
8 8
8 9 <——
ans 9 8 8 , unpredictable

36. During initializing a union Only one member can be initialised. All the members will be initialised. Initialisation of a union is not possible.<——
ans None of these options

37. Self referential structure is one
a. Consisting the structure in the parent structure
b. Consisting the pointer of the structure in the parent structure Only a Only b Both a and b Neither a nor b

38. Individual structure member can be initialized in the structure itself True False Compiler dependent None of these options

39. Which of the following is the feature of stack? All operations are at one end It cannot reuse its memory All elements are of different data types Any element can be accessed from it directly<——ans


40. When stacks are created Are initially empty<——
ans Are initialized to zero Are considered full None of these options

41. What is time required to insert an element in a stack with linked implementation? (1) (log2n)<——
ans (n) (n log2n)

42. Which of the following is the feature of stack? All operations are at one end It cannot reuse its memory All elements are of different data types Any element can be accessed from it directly<——ans

43. Time taken for addition of element in queue is (1) (n) (log n)<——ans None of these options

44. When is linear queue said to be empty ? Front==rear Front=rear-1 Front=rear+1 Front=rear<——
ans

45. When queues are created Are initially empty<——
ans Are initialized to zero Are considered full None of the above

46. What would be the output of the following program? #include
main()
{
printf(”n%c”, “abcdefgh”[4]);
}
abcdefgh
d
e <——
ans error

47. Select the correct C code which will read a line of characters(terminated by a n) from input_file into a character array called buffer. NULL terminate the buffer upon reading a n. int ch, loop = 0; ch = fgetc( input_file ); while( (ch != `n`)&& (ch != EOF) ){buffer[loop] = ch; loop++; ch = fgetc(input_file );} buffer[loop] = NULL; int ch, loop = 0; ch = fgetc( input_file ); while( (ch = “n”)&& (ch = EOF)) { buffer[loop] = ch; loop–; ch = fgetc(]input_file ); } buffer[loop]= NULL; int ch, loop = 0; ch = fgetc( input_file ); while( (ch <> “n”)&& (ch != EOF) ) { buffer[loop] = ch; loop++; ch = fgetc(input_file ); } buffer[loop] = -1;
None of the above

48. What is the output of the following code ?
void main()
{
int a=0;
int b=0;
++a == 0 || ++b == 11;
printf(”n%d,%d”,a,b);
}
0, 1
1, 1 <——
ans 0, 0 1, 0

49. What is the output of the following program? #define str(x)#x #define Xstr(x)str(x) #define oper multiply void main() { char *opername=Xstr(oper); printf(”%s”,opername); } opername Xstr multiply <——
ans Xstr

50. What is the output of the following code ? #include
#include
void main()
{
char *a = “C-DACACTSn”; printf(”%sn”,a); }
C-DAC ACTS
ACTS
C-DAC <——
ans None of these

51. #include
void main()
{
while (1)
{if (printf(”%d”,printf(”%d”)))
break;
else
continue;
}
}
The output is
Compile time error
Goes into an infinite loop
Garbage values <——
ans None of these options

52. Select the correct C statements which tests to see if input_file has opened the data file successfully.If not, print an error message and exit the program. if( input_file == NULL ) { printf(”Unable to open file.n”);exit(1); } if( input_file != NULL ) { printf(”Unable to open file.n”);exit(1); } while( input_file = NULL ) { printf(”Unable to open file.n”);exit(1);} None of these options

53.The code int i = 7; printf(”%dn”, i++ * i++); prints 49 prints 56 <——
ans is compiler dependent expression i++ * i++ is undefined

54. Recursive procedure are implemented by Linear list Queue Tree Stack<——
ans

55. Which of these are reasons for using pointers?
1. To manipulate parts of an array
2. To refer to keywords such as for and if
3. To return more than one value from a function
4. To refer to particular programs more conveniently 1 & 3<——ans only 1 only 3 None of these options 56. The expression x = 4 + 2 % -8 evaluates to -6 6 4 None of these options

57. What is the output of the following code? #include
main()
{
register int a=2;
printf(”nAddress of a = %d,”, &a); printf(”tValue of a = %d”,a);
Address of a,2 <——
ans Linker error Compile time error None of these options 58. What is the output of the following code? #include
void main()
{
int arr[]={0,1,2,3,4,5,6};
int i,*ptr;
for(ptr=arr+4,i =0; i<=4; i++) printf(”n%d”,ptr[-i]);(as the 0=4,for -1 it becomes =3) } Error 6 5 4 3 2 0 garbage garbage garbage garbage 4 3 2 1 0 <——
ans

59. Which of the following is the correct way of declaring a float pointer: float ptr; float *ptr; <——ans *float ptr; None of the above

60.If the following program (newprog) is run from the command line as:newprog 1 2 3 What would be the output of the following? void main (int argc, char*argv[]) { int I,j=0; for (I=0;I<argc;i++) j=”j” +=”” atoi(argv[i]);=”” printf(”%d”,j);=”” }=”” 123=”” 6=”” compilation=”” error<——
ans=”” <=”” p=””></argc;i++)>

CDAC Technical Placement Papers

About CDAC

Centre for Development of Advanced Computing (C-DAC) is the premier R&D organization of the Ministry of Electronics and Information Technology (MeitY) for carrying out R&D in IT, Electronics and associated areas.  Different areas of C-DAC, had originated at different times, many of which came out as a result of identification of opportunities.

  • The setting up of C-DAC in 1988 itself was to built Supercomputers in context of denial of import of Supercomputers by USA. Since then C-DAC has been undertaking building of multiple generations of Supercomputer starting from PARAM with 1 GF in 1988.
  • Almost at the same time, C-DAC started building Indian Language Computing Solutions with setting up of GIST group (Graphics and Intelligence based Script Technology); National Centre for Software Technology (NCST) set up in 1985 had also initiated work in Indian Language Computing around the same period.
  • Electronic Research and Development Centre of India (ER&DCI) with various constituents starting as adjunct entities of various State Electronic Corporations, had been brought under the hold of Department of Electronics and Telecommunications (now MeitY) in around 1988. They were focusing on various aspects of applied electronics, technology and applications.
  • With the passage of time as a result of creative ecosystem that got set up in C-DAC, more areas such as Health Informatics, etc., got created; while right from the beginning the focus of NCST was on Software Technologies; similarly C-DAC started its education & training activities in 1994 as a spin-off with the passage of time, it grew to a large efforts to meet the growing needs of Indian Industry for finishing schools. Visit offical Website of CDAC for more details

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