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# C Programming :: Basic Concepts

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Choose the correct option.

What would be the value assigned to a,b and c if the statement scanf ("%3d,%3d,%3d", &a,&b,&c) is executed with input data as 1234_5678_9 (Note: _ denote as blank)

Aa=123,b=4,c=567

Ba=123,b=567,c=9

Ca=123,b=456,c=789

Da=1234,b=5678,c=9

Explanation:

Here is no explanation for this answer

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What will be the output of the following C program?
void main()
{
int i= 1234; j = 0177, k = 0xa08c;
printf ("%8d %80x /n", I,j,k),
}

A12341777 a08c

B12341 abc a08c

C00001234 01aa ax

D12340777 ao80

Explanation:

The output will be an error, since variables 'j' and 'k' are not declared.

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The conditional compilation

AIt is taken care of by the compiler

BIt is setting the compiler option conditionally

CIt is compiling a program based on a condition

Dnone of above

Explanation:

Here is no explanation for this answer

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Originally 'C' was developed as:

ASystem programming language

BGeneral purpose language

CData processing language

DNone of above

Explanation:

Here is no explanation for this answer

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Latency time is:

ATime taken by read/write head mechanism to position itself over appropriate cylinder

BTime taken to transfer a dta from memory

DNone of above

Explanation:

Here is no explanation for this answer

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The two types of file structure existing in VSAM file are

AKey sequenced structure, entry sequenced structure

BKey sequence structure, exit sequenced structure

CEntry sequence structure, exit sequenced structure

DNone of above

Explanation:

Here is no explanation for this answer

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In C language, a hexadecimal number is represented by writing

Ax

Bx0

C0x

Dh

Explanation:

Hexadecimal numbers in C are represented by 0x or 0X.

For example: the value in Hexadecimal can be written as 0x64, which is equivalent to 100 in decimal.

Hence, the correct option is C.

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In which of the cases, the content inside if statement will not execute

Aif(-100)

Bif(0)

Cif (23.45)

DAll of the above

Explanation:

Option A and C will execute as both -100 and 23.45 are not equal to 0, so the test condition becomes True, hence the contect inside if statement will execute.

Whereas, option B will not execute as 0 not equal to 0 is False, so the content inside if statement won't execute.

Therefore, correct option is B

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AReallocation

BAllocation

DBoth (a) and (b)

Explanation:

Here is no explanation for this answer

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What is the sizeof(long int)

A4 bytes

B2 bytes

CCompiler dependent

D8 bytes

Explanation:

The size for long int depends on the compiler. For a 32-bit model, the size is 4 bytes, whereas for a 64-bit model the size is 8 bytes

Hence, the correct option is C.

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