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

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

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

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

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

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

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

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

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

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

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