Test Your Programming Skills with Safcode!

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Here is all important interview / exams questions.
Student doing practice apptitude test on safcode platform.
Instruction: "Total Number of Questions: 20
Each question carry 10 mark , no negative marking"

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Quiz Start

1. What is the length null string? 0
4
1
3

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2. Which of the following is not a reserved word in C langauge? do
switch
goto
for

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3. To use strcat() function, the __________ header file must be included in the program. math.h
string.h
stdio.h
conio.h

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4. Which of the following is not a storage class? Extern
Register
Auto
Static

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5. Which of the following has a global scope in the program? Formal parameters
Macros
Local variables
Constants

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6. Who developed C languages? Ken Thomson
Dennis Ritchie
Von Neuman
peter Norton

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7. Calling one function from within another is said to be __________ of function calls. Inner
Outer
None of them
Nesting

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8. Every C program has access to which of the following files? stderr
all of the above
stdin
stdout

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9. Which function would you use to convert 1.98 to 1? abs()
fabs()
ceil()
floor()

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10. Which of the following statements about functions is false? The main() function can be called recursively
Functions cannot return more than one value at a time
The maximum number of arguments a function can take is 128
A function can have multiple return statements with different return values

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11. which of the following function can be used to deallocated memory when it is no longer needed? None of these
Calloc()
Free()
Malloc()

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12. What is the default return type of a function? void
float
char
int

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13. Which of the following functions can be used to increase the size of dynamically allocated array? malloc()
realloc()
calloc()
memadjust()

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14. Pointers can be used to achieve? call by procedure
call by name
call by reference
call by function

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15. ________ form a base of any C program. Struct
All of them
Code of block
Instruction

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16. To use strcat() function, the ________ header file must be included in the program. stdio.h
iostream.h
conio.h
string.h

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17. A __________ group together a number of data items, which need not be of the same data type. Structure
Block
Array
Variable

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18. How much memory is required to store a value of type double? 8 bytes
4 bytes
10 bytes
6 bytes

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19. What is the range of double data type for a 16-bit compiler? -1.7e-328 to +1.7e-328
-1.7e-308 to +1.7e-308
-1.7e-328 to +1.7e-328
-1.7e-348 to +1.7e-348

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20. A variable declared with ____ modifier can retain its value during function calls. const
extern
static
volatile

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