Paper : CDAC 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("\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%c\t%c\n",T,t);

}

Error

T t

T T---ans

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("%d\n",count);

for( count = 1; count < 10; count = count + 1) printf("%d\n",count);<------ans

for( count = 0; count <= 9; count = count + 1) printf("%d ",count);

for( count = 1; count <> 10; count = count + 1) printf("%d\n",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%d\t%d\t",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 %d\t%d\t",*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-DAC\0\0ACTS\0\n"; printf("%s\n",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("%d\n", 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

j=j + atoi(argv[I]);

printf("%d",j);

}

123

6

123

Compilation error<------ans

 

Programming Concepts

 

61. The ability to reuse objects already defined, perhaps for a different purpose, with modification appropriate to the new purpose, is referred to as

Information hiding

Inheritance

Redefinition

Overloading

 

62. The term given to the process of hiding all the details of an object that do not contribute to its essential characteristics is called _____________

data-hiding

packaging

encapsulation

abstraction

 

63. Object-oriented technology`s ______ feature means that a small change in user requirements should not require large changes to be made to the System.

Abstraction

Modularity

Encapsulation

Modelling

 

64. An object has _____

State

Behaviour

Identity

All of these options

 

65. Which of the following is true:

Class is an object of an object

Class is meta class

Class cannot have zero instances

None of these options

 

66. If a derived class object is explicitly destroyed by applying the delete operator to a base-class pointer to the object, the _____ function is automatically called on the object Derived-class destructor

Base-class destructor

Base-class constructor

Derived-class constructor

 

67. In object orientated programming a class of objects can _____________ properties from another class of objects

utilize

borrow

inherit

adapt

 

68. Contracts are not meant to be used in cases of _______

Composition

`has-a` relationship

`is-a` relationship

Both Composition and `has-a` relationship

 

69. Inheritance through interface is called ________

Implementation inheritance

Definition inheritance

Delegation inheritance

Interface inheritance model

 

70. When a class uses dynamic memory, what member functions should be provided by the class?

An overloaded assignment operator

The copy constructor

A destructor

All of these options

 

71. ______ means that both the data and the methods which may access it are defined together in the same unit

Data hiding

Encapsulation

Data Binding

None of these options

 

72. The term given to the process of hiding all the details of an object that do not contribute to its essential characteristics is called _____________

data-hiding

packaging

encapsulation

grouping

 

73. Car contains a steering wheel is example of ________

Composition

Association

Composition and Association

None of these options

 

74. Can two classes contain member functions with the same name?

No

Yes, but only if the two classes have the same name

Yes, but only if the main program does not declare both kinds

Yes, this is always allowed

 

75. A contract is implemented through

Class

Interface

Abstract Class

Interface and Abstract Class

 

English Language Ability

 

Directions:- The given pair of words contains a specific relationship to each other. Select the best pair of choices which expresses the same relationship as the given

 

76. IGNOMINY : DISLOYALTY ::

fame : heroism

death : victory

derelict : fool

martyr : man

 

77. EXPLOSION : DEBRIS ::

flood : water

famine : food

fire : ashes

disease : germ

 

78. Bland : Piquant ::

inane : relevant

charlatan : genuine

slavish : servile

terse : serious

 

79. NEGLIGENT : REQUIREMENT::

remiss : duty

cogent :argument

easy : hard

careful : position

 

Directions:- Choose the best word, which is most opposite in the meaning to the given word

 

80. FETTER :

delay

stretch

comply

thrive

 

C-DAC Placement Paper (Aptitude And C Language) 2008

APTITUDE (20 QUESTIONS)

 

1. QuestIons on coding&decoding

2. Question on series (the questions were not striking at glance)

3. There were questions like,an expression is given 4+5*9/3*27=9(say),which two signs should be interchanged so that the expression evaluates to be 13(say).

4. Problem on mixture, like a shopkeeper earns a profit of 10% on selling a product ‘C’at Rs 22/kg. C is mixture of A&B. if A’s cost is Rs14/kg, then find B’s.

5. There two numbers. If the bigger one is multiplied by 3 then divided b the smaller one the remainder "ient comes out to be r1&q1.if the smaller one is first is multiplied by 5&then divided by bigger one the remainder "ient are r2,q2.find the bigger number.

 

The numerical values of r1,q1,r2&q2 were given.

 

•BOOK - R.S .AGGARWAL

C LANGUAGE (40 QUESTIONS)

 

1.good quality questions that tests theory of “c”.

2.good number of problems that involves pointers & strings.

3. few questions on function calling, conditional operators, hierarchy of logical AND& logical OR.

 

The quality of questions was extremely good.

 

•BOOK-EXPLORING ‘C’

DIGITAL ELECRONICS(40 QUESTIONS)

 

1.extremely good questions on coding, the term “excess code” appeared a number of times,there was also good question on basic term radix. e.g which coding is best suitable for complement operation.

2.what is the minimum no.NAND gates that are required to implement a given Boolean expression?

3.treatment of logic gates wih high or low enable inputs, there was a term “floaing point “ that appeared in context with o/p of logic gates..

4. simple questions from combinational &sequential circuits.

5. performance parameters of various digtal logic families (all sorts of TTL,ECL,IIL,MOS,CMOS).

6.few basic questions from microprocessor that involves the topics interrupt, interrupt handling , addressing modes.

 

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