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1. Property which allows to produce different executable for different platforms in C is called?
2. #include is called
3. C preprocessors can have compiler specific features.
4. C preprocessor is conceptually the first step during compilation.
5. Preprocessor feature that supply line numbers and file names to compiler is called?
1. What is the output of this C code? int main() { int x = 2, y = 0; int z = (y++) ? y == 1 && x : 0; printf("%d\n", z); return 0; }
2. What is the output of this C code? int main() { int x = 1; int y = x == 1 ? getchar(): 2; printf("%d\n", y); }
3. What is the output of this C code? int main() { int x = 1; short int i = 2; float f = 3; if (sizeof((x == 2) ? f : i) == sizeof(float)) printf("float\n"); else if (sizeof((x == 2) ? f : i) == sizeof(short int)) printf("short int\n"); }
4. What is the output of this C code? int main() { int a = 2; int b = 0; int y = (b == 0) ? a :(a > b) ? (b = 1): a; printf("%d\n", y); }
5. What is the output of this C code? int main() { int y = 1, x = 0; int l = (y++, x++) ? y : x; printf("%d\n", l); }
1. What is the output of this C code? int main() { enum {ORANGE = 12, MANGO, BANANA = 11, APPLE}; printf("APPLE = %d\n", APPLE); }
2. What is the output of this C code? int main() { printf("C programming %s", "Class by\n%s AllIndiaExams", "SUPER"); }
3. For the following code snippet: char *str = “AllIndiaExams.in\0? “training classesâ€; The character pointer str holds reference to string:
4. What is the output of this C code? #define a 20 int main() { const int a = 50; printf("a = %d\n", a); }
5. What is the output of this C code? int main() { int var = 010; printf("%d", var); }
1. Comment on the output of this C code? 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"); }
2. The format identifier ‘%i’ is also used for _____ data type?
3. Which data type is most suitable for storing a number 65000 in a 32-bit system?
4. Which of the following is a User-defined data type?
5. What is the size of an int data type?
1. What is the output of this C code? void foo(const int *); int main() { const int i = 10; printf("%d ", i); foo(&i); printf("%d", i); } void foo(const int *i) { *i = 20; }
2. Comment on the output of this C code? int main() { const int i = 10; int *ptr = &i; *ptr = 20; printf("%d\n", i); return 0; }
3. What is the output of this C code? int main() { j = 10; printf("%d\n", j++); return 0; }
4. Does this compile without error? int main() { for (int k = 0; k < 10; k++); return 0; }
5. Does this compile without error? int main() { int k; { int k; for (k = 0; k < 10; k++); } }
1. The first and second arguments of fopen are?
2. For binary files, a ___ must be appended to the mode string.
3. If there is any error while opening a file, fopen will return?
4. Which is true about getc.getc returns?
5. When a C program is started, O.S environment is responsible for opening file and providing pointer for that file?
1. What is the output of this C code? int main() { char *p = NULL; char *q = 0; if (p) printf(" p "); else printf("nullp"); if (q) printf("q\n"); else printf(" nullq\n"); }
2. What is the output of this C code? int main() { int i = 10; void *p = &i; printf("%d\n", (int)*p); return 0; }
3. What is the output of this C code? int main() { int i = 10; void *p = &i; printf("%f\n", *(float*)p); return 0; }
4. What is the output of this C code? int *f(); int main() { int *p = f(); printf("%d\n", *p); } int *f() { int *j = (int*)malloc(sizeof(int)); *j = 10; return j; }
5. What is the output of this C code? int *f(); int main() { int *p = f(); printf("%d\n", *p); } int *f() { int j = 10; return &j; }
1. Which among the following is odd one out?
2. For a typical program, the input is taken using.
3. What does the following command line signify?
4. What is the default return-type of getchar()?
5. The value of EOF is_____.
1. The function ____ obtains block of memory dynamically.
2. void * malloc(size_t n) returns:
3. calloc() returns a storage that is initialized to.
4. In function free(p), p is a:
5. What is the output of this C code? void main() { char *p = calloc(100, 1); p = "welcome"; printf("%s\n", p); }
1. The correct syntax to use typedef for struct is.
2. For the following expression to work, which option should be selected. string p = “HELLOâ€;
3. Which of the given option is the correct method for initialization? typedef char *string;
4. Which of the following is FALSE about typedef?
5. typedef which of the following may create problem in the program?
1. C99 standard guarantees uniqueness of ____ characters for internal names.
2. C99 standard guarantess uniqueness of _____ characters for external names.
3. Which of the following is not a valid variable name declaration?
4. Which of the following is not a valid variable name declaration?
5. Variable names beginning with underscore is not encouraged. Why?
1. Which of the following are themselves a collection of different data types?
2. User-defined data type can be derived by___________.
3. Which operator connects the structure name to its member name?
4. Which of the following cannot be a structure member?
5. Which of the following structure declaration will throw an error?
1. What is the output of this C code? int main() { void foo(), f(); f(); } void foo() { printf("2 "); } void f() { printf("1 "); foo(); }
2. What is the output of this C code? int main() { void foo(); void f() { foo(); } f(); } void foo() { printf("2 "); }
3. What is the output of this C code? void foo(); int main() { void foo(); foo(); return 0; } void foo() { printf("2 "); }
4. What is the output of this C code? void foo(); int main() { void foo(int); foo(1); return 0; } void foo(int i) { printf("2 "); }
5. What is the output of this C code? void foo(); int main() { void foo(int); foo(); return 0; } void foo() { printf("2 "); }
1. Comment on the output of this C code? 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"); }
2. The format identifier ‘%i’ is also used for _____ data type?
3. Which data type is most suitable for storing a number 65000 in a 32-bit system?
4. Which of the following is a User-defined data type?
5. What is the size of an int data type?
1. What is the output of this C code? int main() { int i = -5; int k = i %4; printf("%d\n", k); }
2. What is the output of this C code? int main() { int i = 5; int l = i / -4; int k = i % -4; printf("%d %d\n", l, k); return 0; }
3. What is the output of this C code? int main() { int i = 7; i = i / 4; printf("%d\n", i); return 0; }
4. What is the value of x in this C code? void main() { int x = 4 *5 / 2 + 9; }
5. What is the output of this C code? void main() { int x = 4.3 % 2; printf("Value of x is %d", x); }
1. Which keyword can be used for coming out of recursion?
2. What is the output of this C code? int main() { int a = 0, i = 0, b; for (i = 0;i < 5; i++) { a++; continue; } }
3. What is the output of this C code? int main() { int a = 0, i = 0, b; for (i = 0;i < 5; i++) { a++; if (i == 3) break; } }
4. The keyword ‘break’ cannot be simply used within:
5. Which keyword is used to come out of a loop only for that iteration?
| Online Test Name | C |
| Exam Type | Multiple Choice Questions |
| Category | Computer Science Engineering Quiz |