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What is the correct answer?

4

unsigned char has a range from 0 to ------------

A. 253

B. 254

C. 255

D. 256

Correct Answer :

C. 255


Related Questions

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4

Right shifting an operand 1bit is equivalent to multiplying it by 2.

A. True

B. False

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4

All macro substitutions in a program are done before compilation of the program.

A. True

B. False

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4

The output of the following code is:
#define sqr(x= x*x) 
main()
{
int a = 10, b = 5;
printf("%d, %d", sqr(a+b),sqr(++a));
}

A. 77, 121

B. 225, 121

C. 77< 144

D. Compilation error

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4

What is Keywords?

A. Keywords have some predefine meanings and these meanings can be changed.

B. Keywords have some unknown meanings and these meanings cannot be changed.

C. Keywords have some predefine meanings and these meanings cannot be changed.

D. None of the above

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4

&& and & operators have the same meaning.

A. True

B. False

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4

Which of the following is not a preprocessor directive

A. #if

B. #elseif

C. #undef

D. #pragma

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4

Structures within structures cannot be created.

A. True

B. False

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4

Nested macros are allowed.

A. True

B. False

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4

Operation between an integer and float always yields a float result.

A. True

B. False

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4

What does STL stand for?

A. Simple Template Library

B. Standard Template Library

C. Static Type Library

D. Single Type-based Library

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4

The main() function can call itself recursively.

A. True

B. False

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4

Character data types cannot be declared as unsigned.

A. True

B. False

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4

perror( ) function used to ?

A. Work same as printf()

B. prints the error message specified by the compiler

C. prints the garbage value assigned by the compiler

D. None of the above

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4

= and = = have the same operation.

A. True

B. False

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4

All elements of a structure are allocated contiguous memory locations.

A. True

B. False

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4

char *s[10] defines an array of ------------------------

A. pointers to strings

B. string to pointer

C. both

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4

Which of the following is invalid?

A. ''

B. " "

C. 'a'

D. abc'

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4

Which of the following is an example of compounded assignment statement?

A. a = 5

B. a += 5

C. a = b = c

D. a = b

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4

The output of the following code is:
main() 
{
xyz: goto abc;
printf("Hello");
abc: printf("World");
goto xyz;
}

A. Infinite loop

B. Hello World

C. World Hello

D. Compilation error

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4

The expression "int i = j = k = 0;" is invalid.

A. True

B. False

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4

What will be output if you will compile and execute the following c code?
#include 
int main()
{
float a=5.2;
if(a==5.2)
printf("Equal");
else if(a<5.2)
printf("Less than");
else
printf("Greater than");
return 0;
}

A. Less than

B. Equal

C.

Greater than

D. None of above

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4

unsigned char has a range from 0 to ------------

A. 253

B. 254

C. 255

D. 256

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4

The statement "for (i = 0, j = 2; j <= 10; j++)" is a valid statement in 'C'.

A. True

B. False

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4

Single operations involving entire arrays are permitted in C.

A. True

B. False

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4

What's wrong? for (int k = 2, k <=12, k++)

A. the increment should always be ++k

B. the variable must always be the letter i when using a for loop

C. there should be a semicolon at the end of the statement

D. the commas should be semicolons

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4

Which of the following is not true about preprocessor directives

A. They begin with a hash symbol

B. They are processed by a preprocessor

C. They form an integral part of the code

D. They have to end with a semi colon

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4

------ is the ternary operator

A. ?,-

B. ?,:

C. ++<--

D. none of the above

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4

How many times the following loop will execute?
for (a = 0; a < 4; a++)
printf("hello
");

A. 3

B. 4

C. 5

D. infinite

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4

Which of the following is not a standard exception built in C++.

A. std::bad_creat

B. std::bad_alloc

C. std::bad_cast

D. std::bad_typeid

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4

Which of the following keyword supports dynamic method resolution?

A. abstract

B. Virtual

C. Dynamic

D. Typeid