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Test Your Programming Skills with Safcode!
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"
Quiz Start
1. which of the following function can be used to deallocated memory when it is no longer needed?
Free()
None of these
Calloc()
Malloc()
View Answer
2. Which of the following is not a reserved word in C langauge?
for
switch
do
goto
View Answer
3. What is the default return type of a function?
float
int
char
void
View Answer
4. What is the range of double data type for a 16-bit compiler?
-1.7e-328 to +1.7e-328
-1.7e-348 to +1.7e-348
-1.7e-328 to +1.7e-328
-1.7e-308 to +1.7e-308
View Answer
5. Calling one function from within another is said to be __________ of function calls.
None of them
Nesting
Inner
Outer
View Answer
6. What is the length null string?
0
1
4
3
View Answer
7. A __________ group together a number of data items, which need not be of the same data type.
Array
Structure
Block
Variable
View Answer
8. Who developed C languages?
Von Neuman
Ken Thomson
Dennis Ritchie
peter Norton
View Answer
9. To use strcat() function, the ________ header file must be included in the program.
iostream.h
conio.h
string.h
stdio.h
View Answer
10. A variable declared with ____ modifier can retain its value during function calls.
const
extern
static
volatile
View Answer
11. Which operator is used to check if a particular bit is on or off?
||
%
!
&
View Answer
12. Which of the following has a global scope in the program?
Constants
Local variables
Macros
Formal parameters
View Answer
13. Every C program has access to which of the following files?
all of the above
stdin
stdout
stderr
View Answer
14. Which of the following is not a storage class?
Static
Extern
Auto
Register
View Answer
15. Which of the following functions can be used to increase the size of dynamically allocated array?
calloc()
malloc()
memadjust()
realloc()
View Answer
16. Which of the following statements about functions is false?
A function can have multiple return statements with different return values
Functions cannot return more than one value at a time
The maximum number of arguments a function can take is 128
The main() function can be called recursively
View Answer
17. Pointers can be used to achieve?
call by name
call by procedure
call by function
call by reference
View Answer
18. ________ form a base of any C program.
Struct
Instruction
All of them
Code of block
View Answer
19. How much memory is required to store a value of type double?
10 bytes
4 bytes
8 bytes
6 bytes
View Answer
20. To use strcat() function, the __________ header file must be included in the program.
conio.h
stdio.h
math.h
string.h
View Answer