C-questions

1. C99 standard guarantees uniqueness of ______characters for internal names. a) 31 b) 63 c) 12 d) 14

2. C99 standard guarantees uniqueness of ______characters for external names. a) 31 b) 6 c) 12 d) 14

3. Which of the following is not a valid variable name declaration? a) int __a3; b) int __3a; c) int __A3; d) None of the mentioned 4. Variable name resolution (number of significant characters for the uniqueness of variable) depends on ______a) Compiler and linker implementations b) Assemblers and loaders implementations c) C language d) None of the mentioned

5. What will be the output of the following C code? #include int main() { int a[5] = {1, 2, 3, 4, 5}; int i; for (i = 0; i < 5; i++) if ((char)a[i] == '5') printf("%d\n", a[i]); else printf("FAIL\n"); } a) The compiler will flag an error b) The program will compile and print the output 5 c) The program will compile and print the ASCII value of 5 d) The program will compile and print FAIL for 5 times

6. The format identifier ‘%i’ is also used for _____ data type. a) char b) int c) float d) double

7. What will be the output of the following C code? #include int main() { signed char chr; chr = 128; printf("%d\n", chr); return 0; } a) 128 b) -128 c) Depends on the compiler d) None of the mentioned 8. enum types are processed by ______a) Compiler b) Preprocessor c) Linker d) Assembler

9. What will be the output of the following C code? #include int main() { const int p; p = 4; printf("p is %d", p); return 0; } a) p is 4 b) Compile time error c) Run time error d) p is followed by a garbage value 10 Which of the following statement is false? a) Constant variables need not be defined as they are declared and can be defined later b) Global constant variables are initialized to zero c) const keyword is used to define constant values d) You cannot reassign a value to a constant variable

11.What will be the output of the following C code? #include int main() { const int i = 10; int *ptr = &i; *ptr = 20; printf("%d\n", i); return 0; } a) Compile time error b) Compile time warning and printf displays 20 c) Undefined behaviour d) 10 12. Which of the following declaration is not supported by C? a) String str; b) char *str; c) float str = 3e2; d) Both String str; & float str = 3e2;

13. What will be the output of the following C code? #include int main() { int i = 3; int l = i / -2; int k = i % -2; printf("%d %d\n", l, k); return 0; } a) Compile time error b) -1 1 c) 1 -1 d) Implementation defined

14. What will be the final value of x in the following C code? #include void main() { int x = 5 * 9 / 3 + 9; } a) 3.75 b) Depends on compiler c) 24 d) 3

15. In which stage the following code #include gets replaced by the contents of the file stdio.h

A. During editing

B. During linking

C. During execution

D. During preprocessing

16. What will happen if in a C program you assign a value to an array element whose subscript exceeds the size of array?

A. The element will be set to 0. B. The compiler would report an error.

C. The program may crash if some important data gets overwritten.

D. The array size would appropriately grow.

17. What does the following declaration mean? int (*ptr)[10];

A. ptr is array of pointers to 10 integers

B. ptr is a pointer to an array of 10 integers

C. ptr is an array of 10 integers

D. ptr is an pointer to array

18. In C, if you pass an array as an argument to a function, what actually gets passed?

A. Value of elements in array

B. First element of the array

C. Base address of the array

D. Address of the last element of array

19. How will you free the allocated memory ?

A. remove(var-name);

B. free(var-name);

C. delete(var-name);

D. dalloc(var-name);

20. What is the similarity between a structure, union and enumeration?

A. All of them let you define new values

B. All of them let you define new data types

C. All of them let you define new pointers

D. All of them let you define new structures

21. What will be the output of the program ? #include int main() { union a { int i; char ch[2]; }; union a u; u.ch[0]=3; u.ch[1]=2; printf("%d, %d, %d\n", u.ch[0], u.ch[1], u.i); return 0; }

A. 3, 2, 515

B. 515, 2, 3

C. 3, 2, 5

D. 515, 515, 4

22. What will be the output of the program ? #include int main() { struct value { int bit1:1; int bit3:4; int bit4:4; }bit={1, 2, 13};

printf("%d, %d, %d\n", bit.bit1, bit.bit3, bit.bit4); return 0; }

A. 1, 2, 13

B. 1, 4, 4

C. -1, 2, -3

D. -1, -2, -13

23. Point out the error in the program? struct emp { int ecode; struct emp *e; };

A. Error: in structure declaration

B. Linker Error

C. No Error

D. None of above

24. Point out the error in the program? typedef struct data mystruct; struct data { int x; mystruct *b; };

A. Error: in structure declaration

B. Linker Error

C. No Error

D. None of above

25. Which of the following statements correct about the below program? #include int main() { struct emp { char name[25]; int age; float sal; }; struct emp e[2]; int i=0; for(i=0; i<2; i++) scanf("%s %d %f", e[i].name, &e[i].age, &e[i].sal);

for(i=0; i<2; i++) scanf("%s %d %f", e[i].name, e[i].age, e[i].sal); return 0; }

A. Error: scanf() function cannot be used for structures elements.

B. The code runs successfully.

C. Error: Floating point formats not linked Abnormal program termination.

D. Error: structure variable must be initialized.

26.

If the two strings are identical, then strcmp() function returns

A. -1

B. 1

C. 0

D. Yes

27. The library function used to find the last occurrence of a character in a string is

A. strnstr()

B. laststr()

C. strrchr()

D. strstr()

28.

What will be the output of the program ? #include #include int main() { char str1[20] = "Hello", str2[20] = " World"; printf("%s\n", strcpy(str2, strcat(str1, str2))); return 0; } A. Hello

B. World

C. Hello World

D. WorldHello

29.

What will be the output of the program ? #include int main() { char p[] = "%d\n"; p[1] = 'c'; printf(p, 65); return 0; }

A. A

B. a

C. c

D. 65

30. What will be the output of the program ? #include #include int main() { printf("%d\n", strlen("123456")); return 0; }

A. 6

B. 12

C. 7

D. 2

31. Which of the following statements are correct about the below declarations? char *p = "Sanjay"; char a[] = "Sanjay"; 1: There is no difference in the declarations and both serve the same purpose. 2: p is a non-const pointer pointing to a non-const string, whereas a is a const pointer pointing to a non-const pointer. 3: The pointer p can be modified to point to another string, whereas the individual characters within array a can be changed. 4: In both cases the '\0' will be added at the end of the string "Sanjay".

A. 1, 2

B. 2, 3, 4

C. 3, 4

D. 2, 3

32. Will the program compile successfully? #include int main() { char a[] = "India"; char *p = "BIX"; a = "BIX"; p = "India"; printf("%s %s\n", a, p); return 0; }

A. Yes

B. No

33.

The keyword used to transfer control from a function back to the calling function is

A. switch

B. goto

C. go back

D. return

34. What will be the output of the program? #include void fun(int*, int*); int main() { int i=5, j=2; fun(&i, &j); printf("%d, %d", i, j); return 0; } void fun(int *i, int *j) { *i = *i**i; *j = *j**j; }

A. 5, 2

B. 10, 4

C. 2, 5

D. 25, 4

35. Which of the following statements are correct about the program? #include int main() { printf("%p\n", main()); return 0; }

A. It prints garbage values infinitely

B. Runs infinitely without printing anything

C. Error: main() cannot be called inside printf()

D. No Error and print nothing

36. Which of the following statements are correct about the function? long fun(int num) { int i; long f=1; for(i=1; i<=num; i++) f = f * i; return f; }

A. The function calculates the value of 1 raised to power num.

B. The function calculates the square root of an integer

C. The function calculates the factorial value of an integer

D. None of above

37. Which of the following statements are correct about the program? #include int main() { printf("%p\n", main()); return 0; }

A. It prints garbage values infinitely

B. Runs infinitely without printing anything

C. Error: main() cannot be called inside printf()

D. No Error and print nothing

38. Which of the following statements are correct about the function? long fun(int num) { int i; long f=1; for(i=1; i<=num; i++) f = f * i; return f; }

A. The function calculates the value of 1 raised to power num.

B. The function calculates the square root of an integer

C. The function calculates the factorial value of an integer

D. None of above

39.

Will the following functions work? int f1(int a, int b) { return ( f2(20) ); } int f2(int a) { return (a*a); }

A. Yes

B. No

40. How many times the while loop will get executed if a short int is 2 byte wide? #include int main() { int j=1; while(j <= 255) { printf("%c %d\n", j, j); j++; } return 0; }

A. Infinite times

B. 255 times

C. 256 times

D. 254 times

41. Which of the following is not logical operator?

A. &

B. &&

C. ||

D. !

42. Which of the following cannot be checked in a switch-case statement? A. Character

B. Integer

C. Float

D. enum

43. What will be the output of the program? #include int main() { int i=0; for(; i<=5; i++); printf("%d", i); return 0; }

A. 0, 1, 2, 3, 4, 5

B. 5

C. 1, 2, 3, 4

D. 6

44. What will be the output of the program? #include int main() { char str[]="C-program"; int a = 5; printf(a >10?"Ps\n":"%s\n", str); return 0; }

A. C-program

B. Ps

C. Error

D. None of above

45. What will be the output of the program? #include int main() { unsigned int i = 65535; /* Assume 2 byte integer*/ while(i++ != 0) printf("%d",++i); printf("\n"); return 0; }

A. Infinite loop

B. 0 1 2 ... 65535

C. 0 1 2 ... 32767 - 32766 -32765 -1 0

D. No output

46. What will be the output of the program? #include int main() { int x = 3; float y = 3.0; if(x == y) printf("x and y are equal"); else printf("x and y are not equal"); return 0; }

A. x and y are equal

B. x and y are not equal

C. Unpredictable

D. No output

47. What will be the output of the program, if a short int is 2 bytes wide? #include int main() { short int i = 0; for(i<=5 && i>=-1; ++i; i>0) printf("%u,", i); return 0; } A. 1 ... 65535

B. Expression syntax error

C. No output

D. 0, 1, 2, 3, 4, 5

48. What will be the output of the program? #include int main() { char ch; if(ch = printf("")) printf("It matters\n"); else printf("It doesn't matters\n"); return 0; }

A. It matters

B. It doesn't matters

C. matters

D. No output

49. What will be the output of the program ? #include int main() { int a[5] = {5, 1, 15, 20, 25}; int i, j, m; i = ++a[1]; j = a[1]++; m = a[i++]; printf("%d, %d, %d", i, j, m); return 0; }

A. 2, 1, 15

B. 1, 2, 5

C. 3, 2, 15 D. 2, 3, 20

50. What will be the output of the program ? #include int main() { void fun(int, int[]); int arr[] = {1, 2, 3, 4}; int i; fun(4, arr); for(i=0; i<4; i++) printf("%d,", arr[i]); return 0; } void fun(int n, int arr[]) { int *p=0; int i=0; while(i++ < n) p = &arr[i]; *p=0; }

A. 2, 3, 4, 5

B. 1, 2, 3, 4

C. 0, 1, 2, 3

D. 3, 2, 1 0

Answers 1. C 12. A 2. A 13. B 3. D 14. C 4. A 15. D 5. D 16. C 6. B 17. B 7. B 18. C 8. A 19. B 9. B 20. B 10. A 21. A 11. B 22. C 23. C 24. C 25. C 26. C 27. C 28. C 29. A 30. A 31. B 32. B 33. D 34. D 35. B 36. C 37. B 38. C 39. A 40. B 41. A 42. C 43. D 44. A 45. A 46. A 47. A 48. B 49. C 50. B

Test-II C++ Questions 1. Which of the following is the correct syntax of including a user defined header files in C++? a) #include b) #include c) #include “userdefined” d) #include [userdefined] 2. Which of the following is a correct identifier in C++? a) 7var_name b) 7VARNAME c) VAR_1234 d) $var_name 3. Which of the following is called address operator? a) * b) & c) _ d) % 4. Which of the following is used for comments in C++? a) // comment b) /* comment */ c) both // comment or /* comment */ d) // comment */ 5. What are the actual parameters in C++? a) Parameters with which functions are called b) Parameters which are used in the definition of a function c) Variables other than passed parameters in a function d) Variables that are never used in the function 6. What are the formal parameters in C++? a) Parameters with which functions are called b) Parameters which are used in the definition of the function c) Variables other than passed parameters in a function d) Variables that are never used in the function 7. Which function is used to read a single character from the console in C++? a) cin.get(ch) b) getline(ch) c) read(ch) d) scanf(ch) 8. Which function is used to write a single character to console in C++? a) cout.put(ch) b) cout.putline(ch) c) write(ch) d) printf(ch) 9. What are the escape sequences? a) Set of characters that convey special meaning in a program b) Set of characters that whose use are avoided in C++ programs c) Set of characters that are used in the name of the main function of the program d) Set of characters that are avoided in cout statements 10. Which of the following escape sequence represents carriage return? a) \r b) \n c) \n\r d) \c 11. Who created C++? a) Bjarne Stroustrup b) Dennis Ritchie c) Ken Thompson d) Brian Kernighan 12. A language which has the capability to generate new data types are called ______a) Extensible b) Overloaded c) Encapsulated d) Reprehensible 13. Wrapping data and its related functionality into a single entity is known as ______a) Abstraction b) Encapsulation c) Polymorphism d) Modularity 14. How structures and classes in C++ differ? a) In Structures, members are public by default whereas, in Classes, they are private by default b) In Structures, members are private by default whereas, in Classes, they are public by default c) Structures by default hide every member whereas classes do not d) Structures cannot have private members whereas classes can have 15. What does polymorphism in OOPs mean? a) Concept of allowing overiding of functions b) Concept of hiding data c) Concept of keeping things in differnt modules/files d) Concept of wrapping things into a single unit 16. Which concept allows you to reuse the written code? a) Encapsulation b) Abstraction c) Inheritance d) Polymorphism 17. Which of the following shows multiple inheritances? a) A->B->C b) A->B; A->C c) A,B->C d) B->A 18. C++ is ______a) procedural programming language b) object oriented programming language c) functional programming language d) both procedural and object oriented programming language 19. What does modularity mean? a) Hiding part of program b) Subdividing program into small independent parts c) Overriding parts of program d) Wrapping things into single unit 20. Which of the following feature of OOPs is not used in the following C++ code? class A { int i; public: void print(){cout<<"hello"<

class B: public A { int j; public: void assign(int a){j = a;} } a) Abstraction b) Encapsulation c) Inheritance d) Polymorphism 21. Which of the following is not a fundamental type is not present in C but present in C++? a) int b) float c) bool d) void 22. Which of the following is an exit-controlled loop? a) for b) while c) do-while d) all of the mentioned 23. Which of the following is an entry-controlled loop? a) for b) while c) do-while d) both while and for 24. What is dynamic binding? a) The process of linking the actual code with a procedural call during run-time b) The process of linking the actual code with a procedural call during compile-time c) The process of linking the actual code with a procedural call at any-time d) All of the mentioned 25. What is name mangling in C++? a) The process of adding more information to a function name so that it can be distinguished from other functions by the compiler b) The process of making common names for all the function of C++ program for better use c) The process of changing the names of variable d) The process of declaring variables of different types 26. What will be the output of the following program in both C and C++? #include int main(int argc, char const *argv[]) { printf("%d\n", (int)sizeof('a')); return 0; } a) Output in C is 1 and in C++ is 4 b) Output in C is 4 and in C++ is 1 c) Output in C is 1 and in C++ is 1 d) Output in C is 4 and in C++ is 4

27. What will be the output of the following C++ code? #include int main(int argc, char const *argv[]) { char a = 'a'; printf("%d\n", (int)sizeof(a)); return 0; } a) Output in C is 1 and in C++ is 4 b) Output in C is 4 and in C++ is 1 c) Output in C is 1 and in C++ is 1 d) Output in C is 4 and in C++ is 4 28. Which of the following syntax for declaring a variable of struct STRUCT can be used in both C and C++? a) struct STRUCT S; b) STRUCT S; c) Both struct STRUCT S; and STRUCT S; d) Both C and C++ have different syntax 29. Which operator is having the right to left associativity in the following? a) Array subscripting b) Function call c) Addition and subtraction d) Type cast 30. What is this operator called ?:? a) conditional b) relational c) casting operator d) unrelational

What will be the output of the following C++ code? 1. #include 2. using namespace std; 3. int main() 4. { 5. int a; 6. a = 5 + 3 * 5; 7. cout << a; 8. return 0; 9. } a) 35 b) 20 c) 25 d) 30 31. The switch statement is also called as? a) choosing structure b) selective structure c) certain structure d) bitwise structure 32. What will be the output of the following C++ code?

1. #include 2. using namespace std; 3. int main () 4. { 5. int n; 6. for (n = 5; n > 0; n--) 7. { 8. cout << n; 9. if (n == 3) 10. break; 11. } 12. return 0; 13. } a) 543 b) 54 c) 5432 d) 53 33. How many types of loops are there in C++? a) 4 b) 2 c) 3 d) 1 34. What is an inline function? a) A function that is expanded at each call during execution b) A function that is called during compile time c) A function that is not checked for syntax errors d) A function that is not checked for semantic analysis 35. Where should default parameters appear in a function prototype? a) To the rightmost side of the parameter list b) To the leftmost side of the parameter list c) Anywhere inside the parameter list d) Middle of the parameter list 36. If an argument from the parameter list of a function is defined constant then ______a) It can be modified inside the function b) It cannot be modified inside the function c) Error occurs d) Segmentation fault 37. In which of the following we cannot overload the function? a) return function b) caller c) called function d) main function 38. Function overloading is also similar to which of the following? a) operator overloading b) constructor overloading c) destructor overloading d) function overloading 39. What will be the output of the following C++ code? 1. #include 2. using namespace std; 3. int Add(int X, int Y, int Z) 4. { 5. return X + Y; 6. } 7. double Add(double X, double Y, double Z) 8. { 9. return X + Y; 10. } 11. int main() 12. { 13. cout << Add(5, 6); 14. cout << Add(5.5, 6.6); 15. return 0; 16. } a) 11 12.1 b) 12.1 11 c) 11 12 d) compile time error 40. Which keyword is used to check exception in the block of code? a) catch b) throw c) try d) handlers 41. What will be the output of the following C++ code?

1. #include 2. using namespace std; 3. int main() 4. { 5. int age = 0; 6. try 7. { 8. if (age < 0) 9. { 10. throw "Positive Number Required"; 11. } 12. cout << age; 13. } 14. catch(const char *Message) 15. { 16. cout << "Error: " << Message; 17. } 18. return 0; 19. } a) 0 b) error:Positive Number Required c) compile time error d) runtime error 42. What will we not do with function pointers? a) allocation of memory b) deallocation of memory c) both allocation & deallocation of memory d) finds memory status 43. What does a class in C++ holds? a) data b) functions c) both data & functions d) arrays 44. Which of the following is a valid class declaration? a) class A { int x; }; b) class B { } c) public class A { } d) object A { int x; }; 45. The data members and functions of a class in C++ are by default ______a) protected b) private c) public d) public & protected 46. Constructors are used to ______a) initialize the objects b) construct the data members c) both initialize the objects & construct the data members d) delete the objects 47. When struct is used instead of the keyword class means, what will happen in the program? a) access is public by default b) access is private by default c) access is protected by default d) access is denied

48. What will be the output of the following C++ code? #include #include using namespace std; class Box { int capacity; public: Box(int cap){ capacity = cap; }

friend void show(); };

void show() { Box b(10); cout<<"Value of capacity is: "<

int main(int argc, char const *argv[]) { show(); return 0; } a) Value of capacity is: 10 b) Value of capacity is: 100 c) Error d) Segmentation fault

49. How many member functions are there in this C++ class excluding constructors and destructors? class Box { int capacity; public: void print(); friend void show(); bool compare(); friend bool lost(); }; a) 1 b) 2 c) 3 d) 4 50. Which of the following is the default mode of the opening using the ofstream class? a) ios::in b) ios::out c) ios::app d) ios::trunc

Answers 1. C 2. C 3. B 4. C 5. A 6. B 7. A 8. A 9. A 10. A 11. A 12. A 13. B 14. A 15. A 16. C 17. C 18. D 19. B 20. D 21. C 22. C 23. D 24. A 25. A 26. C 27. A 28. D 29. A 30. B 31. B 32. A 33. A 34. A 35. A 36. B 37. A 38. B 39. D 40. C 41. A 42. C 43. C 44. A 45. B 46. A 47. A 48. A 49. B 50. B

Artificial Intelligence 1. What is the term used for describing the judgmental or commonsense part of problem solving?

A. Heuristic

B. Critical

C. Value based

D. Analytical

E. None of the above

2.

What stage of the manufacturing process has been described as "the mapping of function onto form"?

A. Design

B. Distribution

C. project management

D. field service

E. None of the above

3. Which kind of planning consists of successive representations of different levels of a plan?

A. hierarchical planning

B. non-hierarchical planning

C. All of the above

D. project planning E. None of the above

4.

What was originally called the "imitation game" by its creator?

A. The Turing Test

B. LISP

C. The Logic Theorist

D. Cybernetics

E. None of the above

5. Decision support programs are designed to help managers make:

A. budget projections

B. visual presentations

C. business decisions

D. vacation schedules

E. None of the above

6.

PROLOG is an AI programming language which solves problems with a form of symbolic logic known as predicate calculus. It was developed in 1972 at the University of Marseilles by a team of specialists. Can you name the person who headed this team?

A. Alain Colmerauer

B. Nicklaus Wirth

C. Seymour Papert

D. John McCarthy

E. None of the above

7. Programming a robot by physically moving it through the trajectory you want it to follow is called:

A. contact sensing control B. continuous-path control

C. robot vision control

D. pick-and-place control

E. None of the above

8.

To invoke the LISP system, you must enter

A. AI

B. LISP

C. CL (Common Lisp)

D. both b and c

E. None of the above

9.

DEC advertises that it helped to create "the world's first expert system routinely used in an industrial environment," called XCON or:

A. PDP-11

B. Rl

C. VAX

D. MAGNOM

E. None of the above

10.

Prior to the invention of time sharing, the prevalent method of computer access was:

A. batch processing

B. telecommunication

C. remote access

D. All of the above

E. None of the above

11. The Strategic Computing Program is a project of the:

A. Defense Advanced Research Projects Agency

B. National Science Foundation

C. Jet Propulsion Laboratory

D. All of the above

E. None of the above

12. Seymour Papert of the MIT AI lab created a programming environment for children called:

A. BASIC

B. LOGO

C. MYCIN

D. FORTRAN

E. None of the above

13. The original LISP machines produced by both LMI and Symbolics were based on research performed at:

A. CMU

B. MIT

C. Stanford University

D. RAMD

E. None of the above

14.

In LISP, the addition 3 + 2 is entered as

A. 3 + 2

B. 3 add 2

C. 3 + 2 =

D. (+ 3 2)

E. None of the above

15. Weak AI is

A. the embodiment of human intellectual capabilities within a computer.

a set of computer programs that produce output that would be considered to reflect

B. intelligence if it were generated by humans.

the study of mental faculties through the use of mental models implemented on a

C. computer.

D. All of the above

E. None of the above

16. In LISP, the function assigns the symbol x to y is

A. (setq y x)

B. (set y = 'x')

C. (setq y = 'x')

D. (setq y 'x')

E. None of the above

17.

In LISP, the function returns t if