MCQOPTIONS
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MCQOPTIONS
This section includes 45 Mcqs, each offering curated multiple-choice questions to sharpen your Fidelity knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If every node u in G is adjacent to every other node v in G, A graph is said to be |
| A. | isolated |
| B. | complete |
| C. | finite |
| D. | strongly connected |
| Answer» C. finite | |
| 2. |
Which of the following is TRUE about argv? |
| A. | It is an array of character pointers |
| B. | It is a pointer to an array of character pointers |
| C. | It is an array of strings |
| D. | None of above |
| Answer» B. It is a pointer to an array of character pointers | |
| 3. |
Which of the following global variable is set when the log function (defines in ) fails? |
| A. | exceptionno |
| B. | errno |
| C. | log_error |
| D. | error |
| Answer» C. log_error | |
| 4. |
Which of the following best describe volatile keyword? |
| A. | Volatile keyword indicates that the variable is stored in volatile memory |
| B. | Volatile keyword indicates that the value of the variable cannot be determined at compile time |
| C. | Volatile keyword instruct the compiler not to do any optimization on that variable |
| D. | Volatile keyword indicates that it cannot be used with const keyword |
| Answer» D. Volatile keyword indicates that it cannot be used with const keyword | |
| 5. |
Which of the following is not a stream that is opened by every c program? |
| A. | stdlog |
| B. | stdout |
| C. | stdin |
| D. | stderr |
| Answer» B. stdout | |
| 6. |
The compiler will give an error if we attempt to get the address of a varaible with _________ stroage class. |
| A. | register keyword |
| B. | extern keyword |
| C. | static keyword |
| D. | auto keyword |
| Answer» B. extern keyword | |
| 7. |
A utility programme that takes a procedure and searches a library to locate copies of any procedures called but not defined in the first procedure, is called |
| A. | Linker |
| B. | Re-locator |
| C. | Loader |
| D. | Text editor |
| Answer» B. Re-locator | |
| 8. |
An assembly language is a .......... programming language but BASIC is ....... programming language |
| A. | problem oriented.....low level |
| B. | problem oriented.........high leve |
| C. | machine oriented......high level |
| D. | machine oriented......low level |
| Answer» D. machine oriented......low level | |
| 9. |
While coding in c programming for "call by reference" we pass |
| A. | Address of variable |
| B. | Value of variable |
| C. | Either value or address |
| D. | Both value and address |
| Answer» B. Value of variable | |
| 10. |
Which of the following is incorrect statement |
| A. | All array variable have same type |
| B. | An array is the collection of variable |
| C. | Array variable can be used individually |
| D. | None of the mentioned |
| Answer» E. | |
| 11. |
Array index always start from |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» B. 1 | |
| 12. |
In c programming a function can return ___________ |
| A. | Single value |
| B. | Double value |
| C. | Many value |
| D. | all of the above |
| Answer» B. Double value | |
| 13. |
Which of the following is correct statement? |
| A. | Variable name must start with underscore |
| B. | Variable name must have digit |
| C. | keyword can not be a variable name |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 14. |
#include struct p { int x; char y; }; int main() { struct p p1[] = {1, 92, 3, 94, 5, 96}; struct p *ptr1 = p1; int x = (sizeof(p1) / 3); if (x == sizeof(int) + sizeof(char)) printf(""%d\n"", ptr1->x); else printf(""falsen""); } |
| A. | Compile time error |
| B. | 1 |
| C. | Undefined Behaviour |
| D. | FALSE |
| Answer» E. | |
| 15. |
Trace the output of the code #include void foo(int*); int main() { int i = 10; foo((&i)++); } void foo(int *p) { printf(""%d\n"", *p); } |
| A. | 10 |
| B. | Some garbage value |
| C. | Segmentation fault/Code crash |
| D. | Compile time error |
| Answer» D. Compile time error | |
| 16. |
what among the following is a unconditional control structure: |
| A. | do-while |
| B. | if-else |
| C. | goto |
| D. | for |
| Answer» D. for | |
| 17. |
The symbol that shows you where the mouse is on the screen is called the: |
| A. | icon |
| B. | mouse pointed |
| C. | director |
| D. | arrow |
| Answer» C. director | |
| 18. |
Which header file is essential for using strcmp() function? |
| A. | string.h |
| B. | strings.h |
| C. | text.h |
| D. | strcmp.h |
| Answer» B. strings.h | |
| 19. |
what is the original(or highest level)directory on a disk? |
| A. | root |
| B. | tree |
| C. | c> |
| D. | d> |
| Answer» B. tree | |
| 20. |
Type the name of the single dot that represents the smallest graphic unit that can be displayed on the screen? |
| A. | unit |
| B. | bit |
| C. | byte |
| D. | pixel |
| Answer» E. | |
| 21. |
The choices file options and so are called: |
| A. | items |
| B. | reserved words |
| C. | terms |
| D. | queries |
| Answer» B. reserved words | |
| 22. |
The number of the relational operators in the c language is: |
| A. | 4 |
| B. | 6 |
| C. | 3 |
| D. | 1 |
| Answer» C. 3 | |
| 23. |
c is a __________ language: |
| A. | high level |
| B. | low level |
| C. | middle level |
| D. | machine level |
| Answer» D. machine level | |
| 24. |
A link is: |
| A. | a compiler |
| B. | an active debugger |
| C. | a c interpreter |
| D. | a analyzing tool in c |
| Answer» E. | |
| 25. |
The maximum length of a variable in c is: |
| A. | 8 |
| B. | 16 |
| C. | 32 |
| D. | 64 |
| Answer» B. 16 | |
| 26. |
The continue command cannot be used with: |
| A. | for |
| B. | switch |
| C. | do |
| D. | while |
| Answer» C. do | |
| 27. |
The size of string variable is: |
| A. | 1 byte |
| B. | 8 byte |
| C. | 16 bytes |
| D. | none of the above |
| Answer» E. | |
| 28. |
What is the use of putchar()? |
| A. | The character written |
| B. | EOF is an error occurs |
| C. | Nothing |
| D. | Both a & b |
| Answer» E. | |
| 29. |
Which is true? |
| A. | The symbolic constant EOF is defined in |
| B. | The value is typically -1 |
| C. | Both a & b |
| D. | Either a or b |
| Answer» D. Either a or b | |
| 30. |
What is the use of getchar()? |
| A. | The next input character each time it is called |
| B. | EOF when it encounters end of file |
| C. | Both a & b |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 31. |
The value of EOF is_____. |
| A. | -1 |
| B. | 0 |
| C. | 1 |
| D. | 10 |
| Answer» B. 0 | |
| 32. |
What is the default return-type of getchar()? |
| A. | char |
| B. | int |
| C. | char * |
| D. | Reading character doesnt require a return-type |
| Answer» C. char * | |
| 33. |
What does the following command line signify? prog1I prog2 |
| A. | It runs prog1 first, prog2 second |
| B. | It runs prog2 first, prog1 second |
| C. | It runs both the programs, pipes output of prog1 to input of prog2 |
| D. | It runs both the programs, pipes output of prog2 to input of prog1 |
| Answer» D. It runs both the programs, pipes output of prog2 to input of prog1 | |
| 34. |
For a typical program, the input is taken using. |
| A. | scanf |
| B. | Files |
| C. | Command-line |
| D. | None of the mentioned |
| Answer» E. | |
| 35. |
Which among the following is odd one out? |
| A. | printf |
| B. | fprintf |
| C. | putchar |
| D. | scanf |
| Answer» E. | |
| 36. |
Is the following statement a declaration or definition? extern int i; |
| A. | Declaration |
| B. | Definition |
| C. | Function |
| D. | Error |
| Answer» B. Definition | |
| 37. |
By default a real number is treated as a |
| A. | float |
| B. | double |
| C. | long double |
| D. | far double |
| Answer» C. long double | |
| 38. |
Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1 ? |
| A. | rem = 3.14 % 2.1; |
| B. | rem = modf(3.14, 2.1); |
| C. | rem = fmod(3.14, 2.1); |
| D. | Remainder cannot be obtain in floating point division |
| Answer» D. Remainder cannot be obtain in floating point division | |
| 39. |
fputs function is used to |
| A. | write characters to a file |
| B. | takes 2 parameters |
| C. | returns a character |
| D. | requires a file pointer |
| Answer» D. requires a file pointer | |
| 40. |
The size of a structure can be determined by a. size of variable name b. sizeof(struct tag) |
| A. | Only a |
| B. | Only b |
| C. | Both a and b |
| D. | none of the above |
| Answer» D. none of the above | |
| 41. |
Which of the following is the correct way of declaring a float pointer: |
| A. | float ptr; |
| B. | float *ptr |
| C. | *float ptr; |
| D. | None of the above |
| Answer» C. *float ptr; | |
| 42. |
Array passed as an argument to a function is interpreted as |
| A. | Address of the array |
| B. | Values of the first elements of the array |
| C. | Address of the first element of the arrayd.) Number of element of the array |
| Answer» D. | |
| 43. |
what is the maximum number of dimensions an array in C may have ? |
| A. | two |
| B. | eight |
| C. | twenty |
| D. | theoratically no limit only practical limits are memory size and compilers |
| Answer» E. | |
| 44. |
O(N)(liner time) is better than O(1) constant time. |
| A. | TRUE |
| B. | FALSE |
| Answer» C. | |
| 45. |
Smallest element of array's index is called |
| A. | lower bound |
| B. | upper bound |
| C. | range |
| D. | Extraction |
| Answer» B. upper bound | |