C certification-questions

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C Programming

Language

Author: JavaChamp Team

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Table of Contents

Quiz Permalink: http://www.quizover.com/pdf/c-certification-questions

Author Profile: http://www.quizover.com/user/profile/Java.Champ

1. C Programming Language

Basics

Arithmetic operators

Logical operators and Conditions

Print out Statements

Flow Control

Inputs Reading

Assignement

Arrays

Methods and Functions

Identifiers and Variables

Data Types

Strings

http://www.quizover.com/pdf/c-certification-questions





4. Chapter: Basics

1. Basics Questions

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4.1.1. Question: The C programming Language is

The C programming Language is

Please choose only one answer:

Low level language

High level language

Machine language


Check the answer of this question online on QuizOver.com:Question: c languagePermalink: http://www.quizover.com/pdf/c-language


http://www.quizover.com/pdf/c-language

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4.1.2. Question: To include a header file in a C program:

To include a header file in a C program:


#include "stdio.h" ;

#include "stdio.h"

Both correct

Author: Yasser Ibrahim

Check the answer of this question online on QuizOver.com:Question: include in CPermalink: http://www.quizover.com/pdf/include-in-c

http://www.quizover.com/user/profile/Yasser.Ibrahim

http://www.quizover.com/pdf/include-in-c

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4.1.3. Question: the #include keyword in c language is:

the #include keyword in c language is:


executive c statement

compiler directive

both correct


Check the answer of this question online on QuizOver.com:Question: how to include in C?Permalink: http://www.quizover.com/pdf/how-to-include-in-c


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4.1.4. Question: To include a header file in a C program:

To include a header file in a C program:


#include "stdio.h"

#include <stdio.h>

Both correct


Check the answer of this question online on QuizOver.com:Question: how to include a header in C?Permalink: http://www.quizover.com/pdf/how-to-include-a-header-in-c


http://www.quizover.com/pdf/how-to-include-a-header-in-c

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4.1.5. Question: The main() function is:

The main() function is:


to write output to the screen

the program entry point

Both correct


Check the answer of this question online on QuizOver.com:Question: main function in CPermalink: http://www.quizover.com/pdf/main-function-in-c


http://www.quizover.com/pdf/main-function-in-c

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4.1.6. Question: How to write comments in C language?

How to write comments in C language?


Use /* ….. */ for multi-line comments

Use // for single-line comments

Both correct


Check the answer of this question online on QuizOver.com:Question: How to write comments in C language?Permalink: http://www.quizover.com/pdf/how-to-write-comments-in-c-language


http://www.quizover.com/pdf/how-to-write-comments-in-c-language

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4.1.7. Question: The computer performs computations internally using

The computer performs computations internally using


Binary number system

Decimal number system

Hexadec. number system


Check the answer of this question online on QuizOver.com:Question: Binary number systemPermalink: http://www.quizover.com/pdf/binary-number-system


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5. Chapter: Arithmetic operators

1. Arithmetic operators Questions

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5.1.1. Question: To compute the square of the value in variable a:

To compute the square of the value in variable a:


b = a^2;

z = a * a;

both correct


Check the answer of this question online on QuizOver.com:Question: How to square a value in C?Permalink: http://www.quizover.com/pdf/how-to-square-a-value-in-c


http://www.quizover.com/pdf/how-to-square-a-value-in-c

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5.1.2. Question: The value of z in the following statement:

int x = 9 , y = 2 , z...

The value of z in the following statement:

int x = 9 , y = 2 , z = x / y;


4

4.5

5


Check the answer of this question online on QuizOver.com:Question: arithmetic operators in CPermalink: http://www.quizover.com/pdf/arithmetic-operators-in-c


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5.1.3. Question: choose the proper function to compute the cubic value of any input ...

choose the proper function to compute the cubic value of any input integer n:


int cube(void) { return (n * n * n) ; }

int cube(int n) { return (n * n * n) ; }

void cube(int n) { return (n * n * n) ; }


Check the answer of this question online on QuizOver.com:Question: write method in CPermalink: http://www.quizover.com/pdf/write-method-in-c


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5.1.4. Question: what is the output of the following piece of code

what is the output of the following piece of code


3

4

5


int a = 1, b = 2, c;c = a-- + b--;printf(“%d”,c);

Check the answer of this question online on QuizOver.com:Question: decrementation in CPermalink: http://www.quizover.com/pdf/decrementation-in-c


http://www.quizover.com/pdf/decrementation-in-c

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5.1.5. Question: What is the output of the following piece of code?

What is the output of the following piece of code?


8

9

10


int x = 3, y = 5, z;z = x + ++y;printf(“%d”,z);

Check the answer of this question online on QuizOver.com:Question: How to increment int in C?Permalink: http://www.quizover.com/pdf/how-to-increment-int-in-c


http://www.quizover.com/pdf/how-to-increment-int-in-c

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5.1.6. Question: A short-cut for the statement: x = x + 1;

A short-cut for the statement: x = x + 1;


x += 1;

x++;

Both correct


Check the answer of this question online on QuizOver.com:Question: post increment in CPermalink: http://www.quizover.com/pdf/post-increment-in-c


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5.1.7. Question: what is the output of the following piece of code

int z = 23 % 3;

what is the output of the following piece of code

int z = 23 % 3;


7

2

30


Check the answer of this question online on QuizOver.com:Question: remainder operator in CPermalink: http://www.quizover.com/pdf/remainder-operator-in-c


http://www.quizover.com/pdf/remainder-operator-in-c

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5.1.8. Question: To compute the cube of the value in variable x:

To compute the cube of the value in variable x:


c = x * x * x;

c = x^3;

Both correct


Check the answer of this question online on QuizOver.com:Question: C arithmetic operatorsPermalink: http://www.quizover.com/pdf/c-arithmetic-operators


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5.1.9. Question: what is the output of the following piece of code:

what is the output of the following piece of code:


1

2

3


int c = 19 % 4;

Check the answer of this question online on QuizOver.com:Question: How to use Remainder operator in C?Permalink: http://www.quizover.com/pdf/how-to-use-remainder-operator-in-c


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5.1.10. Question: printf("%f", sqrt(sqrt (x)));

printf("%f", sqrt(sqrt (x)));


is correct

has syntax error

causes run-time error


Check the answer of this question online on QuizOver.com:Question: How sqrt method works in C?Permalink: http://www.quizover.com/pdf/how-sqrt-method-works-in-c


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5.1.11. Question: What is the output of the following piece of code:

What is the output of the following piece of code:


8

9

10


int x = 3, y = 5, z;z = ++x + ++y;printf(“%d”,z);

Check the answer of this question online on QuizOver.com:Question: How to increment in C?Permalink: http://www.quizover.com/pdf/how-to-increment-in-c


http://www.quizover.com/pdf/how-to-increment-in-c

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5.1.12. Question: What is the output of the following piece of code?

What is the output of the following piece of code?


8

9

10


int x = 3, y = 5, z ;z = x++ + ++y;printf(“%d”,z);

Check the answer of this question online on QuizOver.com:Question: How incrementation works in C?Permalink: http://www.quizover.com/pdf/how-incrementation-works-in-c


http://www.quizover.com/pdf/how-incrementation-works-in-c




6. Chapter: Logical operators and Conditions

1. Logical operators and Conditions Questions

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6.1.1. Question: What is the result of compiling and running the following code?

What is the result of compiling and running the following code?


no output is produced

c is smaller than C

c is greater than C

compilation error


public static void main(String[] args) {

char c = 'c';String result = (c > 'C') ? "c is greater than C " : "c is smaller than C";System.out.print(result);

}

Check the answer of this question online on QuizOver.com:Question: conditional operator in JavaPermalink: http://www.quizover.com/pdf/conditional-operator-in-java


http://www.quizover.com/pdf/conditional-operator-in-java

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6.1.2. Question: The operator = in the Boolean condition if( age = 3 )

The operator = in the Boolean condition if( age = 3 )


assignment operator

check for equality condition operator

both correct


Check the answer of this question online on QuizOver.com:Question: How to write if statement in C?Permalink: http://www.quizover.com/pdf/how-to-write-if-statement-in-c


http://www.quizover.com/pdf/how-to-write-if-statement-in-c

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6.1.3. Question: what is the result of the condition ( x ;; y ) given the declaratio...

what is the result of the condition ( x ;; y ) given the declaration :

int x = 1 , y = 2 ;


false

unknown

true


Check the answer of this question online on QuizOver.com:Question: logical AND operator in CPermalink: http://www.quizover.com/pdf/logical-and-operator-in-c


http://www.quizover.com/pdf/logical-and-operator-in-c

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6.1.4. Question: consider the following statement:

if( 7 ) printf("CHECK");

consider the following statement:

if( 7 ) printf("CHECK");


the printf() statement will always be executed

the printf() statement will never be executed

Depends on the compiler


Check the answer of this question online on QuizOver.com:Question: how conditions evaluated in CPermalink: http://www.quizover.com/pdf/how-conditions-evaluated-in-c


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6.1.5. Question: What is the result of the condition ( a ;; b ) given the following ...

What is the result of the condition ( a ;; b ) given the following declaration :


true

false

unknown


int a = 3 , b = 1 ;

Check the answer of this question online on QuizOver.com:Question: How to evaluate conditions in C?Permalink: http://www.quizover.com/pdf/how-to-evaluate-conditions-in-c


http://www.quizover.com/pdf/how-to-evaluate-conditions-in-c

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6.1.6. Question: the ; operator in the Boolean condition if( (x>5) ; ( y < 9 ) ) &h...

the ; operator in the Boolean condition if( (x>5) ; ( y < 9 ) ) …


bit-wise AND operator

address operator

logical AND operator


Check the answer of this question online on QuizOver.com:Question: bit-wise AND operator in CPermalink: http://www.quizover.com/pdf/bitwise-and-operator-in-c


http://www.quizover.com/pdf/bitwise-and-operator-in-c

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6.1.7. Question: what is the result of the condition ( x ; y ) given the declaration...

what is the result of the condition ( x ; y ) given the declaration:

int x = 1 , y = 2 ;


true

unknown

false


Check the answer of this question online on QuizOver.com:Question: bit-wise AND C operatorPermalink: http://www.quizover.com/pdf/bitwise-and-c-operator


http://www.quizover.com/pdf/bitwise-and-c-operator

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6.1.8. Question: To find the max value between x,y :

To find the max value between x,y :


if ( x > y ) max = x;

else max = y;

max = y;

if ( x > y ) max = x;

both correct


Check the answer of this question online on QuizOver.com:Question: How to find max value in C?Permalink: http://www.quizover.com/pdf/how-to-find-max-value-in-c


http://www.quizover.com/pdf/how-to-find-max-value-in-c

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no output

7

3


int x = 7;if ( x = 3 ) printf( “%d“ , x);

Check the answer of this question online on QuizOver.com:Question: How to evaluate C conditions?Permalink: http://www.quizover.com/pdf/how-to-evaluate-c-conditions


http://www.quizover.com/pdf/how-to-evaluate-c-conditions

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6.1.10. Question: if ( 16 = m ) printf("m is 16");

if ( 16 = m ) printf("m is 16");


is correct

has syntax error



Check the answer of this question online on QuizOver.com:Question: How to write C if statement?Permalink: http://www.quizover.com/pdf/how-to-write-c-if-statement


http://www.quizover.com/pdf/how-to-write-c-if-statement




7. Chapter: Print out Statements

1. Print out Statements Questions

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7.1.1. Question: To write statement hi world:

To write statement hi world:


puts(‘hi world’);

puts("hi world");

Both correct


Check the answer of this question online on QuizOver.com:Question: How to print out a String in C?Permalink: http://www.quizover.com/pdf/how-to-print-out-a-string-in-c


http://www.quizover.com/pdf/how-to-print-out-a-string-in-c

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7.1.2. Question: To write the ASCII code of char ch=’x’;

To write the ASCII code of char ch=’x’;


printf("%d",ch);

putch(ch);

printf("%d", ascii(ch));


Check the answer of this question online on QuizOver.com:Question: How to print out ASCII in c?Permalink: http://www.quizover.com/pdf/how-to-print-out-ascii-in-c


http://www.quizover.com/pdf/how-to-print-out-ascii-in-c

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7.1.3. Question: To write the value of x where:

double x = 0.12345;

To write the value of x where:

double x = 0.12345;


printf( "%lf " , x);

printf( "%f " , x);

printf( "%ld " , x);


Check the answer of this question online on QuizOver.com:Question: how to print double in C?Permalink: http://www.quizover.com/pdf/how-to-print-double-in-c


http://www.quizover.com/pdf/how-to-print-double-in-c

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7.1.4. Question: To print character a:

To print character a:


putch("a");

putch(‘a’);

Both correct


Check the answer of this question online on QuizOver.com:Question: How to print out a character in C?Permalink: http://www.quizover.com/pdf/how-to-print-out-a-character-in-c


http://www.quizover.com/pdf/how-to-print-out-a-character-in-c

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7.1.5. Question: what is the best choice to print the value of variable x where:

...

what is the best choice to print the value of variable x where:

int x = 123;


printf("%d",x);

printf("%c",x);

printf("%f",x);


Check the answer of this question online on QuizOver.com:Question: print int in CPermalink: http://www.quizover.com/pdf/print-int-in-c


http://www.quizover.com/pdf/print-int-in-c

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7.1.6. Question: what is the best choice to print the value of variable y where:flo...

what is the best choice to print the value of variable y where:float y = 2.34;


printf("%d",y);

printf("%f",y);

printf("%c",y);


Check the answer of this question online on QuizOver.com:Question: printf float in CPermalink: http://www.quizover.com/pdf/printf-float-in-c


http://www.quizover.com/pdf/printf-float-in-c

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7.1.7. Question: To write string char str[30] = "C Language";

What to use?

To write string char str[30] = "C Language";

What to use?


printf("%s",str);

puts(str);

Both correct


Check the answer of this question online on QuizOver.com:Question: How to print out in c?Permalink: http://www.quizover.com/pdf/how-to-print-out-in-c


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8. Chapter: Flow Control

1. Flow Control Questions

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while ( 1 ) ;


while ( 1 ) ;


Infinite loop

Syntax error



Check the answer of this question online on QuizOver.com:Question: infinite loop in CPermalink: http://www.quizover.com/pdf/infinite-loop-in-c


http://www.quizover.com/pdf/infinite-loop-in-c

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One

Two

TwoThree


switch(2) {case 1: printf(“One”);break;case 2: printf(“Two”);break;case 3: printf(“Three”);break;}

Check the answer of this question online on QuizOver.com:Question: how switch works in C?Permalink: http://www.quizover.com/pdf/how-switch-works-in-c


http://www.quizover.com/pdf/how-switch-works-in-c

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8.1.3. Question: To write character array

char mystr[50] = "string" , i = 0;

To write character array

char mystr[50] = "string" , i = 0;


len = strlen (mystr);

for ( i = 0 ; i < len ; i++ ) putch(mystr [i] );

for ( i = 0 ; i < 50 ; i++ ) putch(mystr [i] );

Both correct


Check the answer of this question online on QuizOver.com:Question: How to write a for loop in C?Permalink: http://www.quizover.com/pdf/how-to-write-a-for-loop-in-c


http://www.quizover.com/pdf/how-to-write-a-for-loop-in-c

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8.1.4. Question: for(j=63 , i < 95 , i +=3) x += sqrt(j);

for(j=63 , i < 95 , i +=3) x += sqrt(j);


is correct

has syntax error



Check the answer of this question online on QuizOver.com:Question: using for loop in CPermalink: http://www.quizover.com/pdf/using-for-loop-in-c


http://www.quizover.com/pdf/using-for-loop-in-c

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while ( 3 ) ;


while ( 3 ) ;


Infinite loop

Syntax error

Executes only 3 iterations


Check the answer of this question online on QuizOver.com:Question: infinite while loop in CPermalink: http://www.quizover.com/pdf/infinite-while-loop-in-c


http://www.quizover.com/pdf/infinite-while-loop-in-c

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Default

One

Two


switch(476) {case 1: printf(“One”);break;case 2: printf(“Two”);break;default: printf(“Default”);break;}

Check the answer of this question online on QuizOver.com:Question: how to write switch statement in C?Permalink: http://www.quizover.com/pdf/how-to-write-switch-statement-in-c


http://www.quizover.com/pdf/how-to-write-switch-statement-in-c

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8.1.7. Question: while (degree < 100 ); count+= degree;

while (degree < 100 ); count+= degree;


is correct and causes no runtime error

has syntax error



Check the answer of this question online on QuizOver.com:Question: how to write while loop in C?Permalink: http://www.quizover.com/pdf/how-to-write-while-loop-in-c


http://www.quizover.com/pdf/how-to-write-while-loop-in-c

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8.1.8. Question: while (degree < 100 ) count+= degree++;

while (degree < 100 ) count+= degree++;


is correct

has syntax error



Check the answer of this question online on QuizOver.com:Question: while loop in CPermalink: http://www.quizover.com/pdf/while-loop-in-c


http://www.quizover.com/pdf/while-loop-in-c

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for( ; ; ) ;


for( ; ; ) ;



Syntax error

Infinite loop


Check the answer of this question online on QuizOver.com:Question: how to write for loop in C?Permalink: http://www.quizover.com/pdf/how-to-write-for-loop-in-c


http://www.quizover.com/pdf/how-to-write-for-loop-in-c

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One

Two

TwoThree


switch(2) {case 1: printf(“One”);break;case 2: printf(“Two”);case 3: printf(“Three”);break;}

Check the answer of this question online on QuizOver.com:Question: how to write switch in C?Permalink: http://www.quizover.com/pdf/how-to-write-switch-in-c


http://www.quizover.com/pdf/how-to-write-switch-in-c




9. Chapter: Inputs Reading

1. Inputs Reading Questions

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9.1.1. Question: To get a statement from the user input in the array char s[100]:

To get a statement from the user input in the array char s[100]:


gets( s[100] );

gets( s[] );

gets( s );


Check the answer of this question online on QuizOver.com:Question: How to read inputs into an array in C?Permalink: http://www.quizover.com/pdf/how-to-read-inputs-into-an-array-in-c


http://www.quizover.com/pdf/how-to-read-inputs-into-an-array-in-c

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9.1.2. Question: To get a statement from the user input in the array

char s[100] :

To get a statement from the user input in the array

char s[100] :


gets( s );

scanf( "%s", s );

Both correct


Check the answer of this question online on QuizOver.com:Question: How to read user inputs in C?Permalink: http://www.quizover.com/pdf/how-to-read-user-inputs-in-c


http://www.quizover.com/pdf/how-to-read-user-inputs-in-c

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9.1.3. Question: scanf("%d", ;time);

scanf("%d", ;time);


is correct

has syntax error



Check the answer of this question online on QuizOver.com:Question: How to write C scanf?Permalink: http://www.quizover.com/pdf/how-to-write-c-scanf


http://www.quizover.com/pdf/how-to-write-c-scanf

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9.1.4. Question: what is the best choice to input the value of variable c where:cha...

what is the best choice to input the value of variable c where:char c;


scanf("%d", ;c);

scanf("%f", ;c);

scanf("%c", ;c);


Check the answer of this question online on QuizOver.com:Question: read char in CPermalink: http://www.quizover.com/pdf/read-char-in-c


http://www.quizover.com/pdf/read-char-in-c




10. Chapter: Assignement

1. Assignement Questions

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10.1.1. Question: To assign the value of integer x into character ch where:

int x =...

To assign the value of integer x into character ch where:

int x = 5; char ch;


ch = x;

ch = ascii(x);

x = ch;


Check the answer of this question online on QuizOver.com:Question: How to cenvert between char and int in C?Permalink: http://www.quizover.com/pdf/how-to-cenvert-between-char-and-int-in-c


http://www.quizover.com/pdf/how-to-cenvert-between-char-and-int-in-c




11. Chapter: Arrays

1. Arrays Questions

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11.1.1. Question: To declare and initialize character array:

To declare and initialize character array:


char s[] = { ‘a’, ‘b’ , ‘c’ };

char s[] = "abc";

both correct


Check the answer of this question online on QuizOver.com:Question: declare char array in CPermalink: http://www.quizover.com/pdf/declare-char-array-in-c


http://www.quizover.com/pdf/declare-char-array-in-c

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11.1.2. Question: To declare and initialize character array :

To declare and initialize character array :


char s[] = { ‘a’, ‘b’ , ‘c’ };

char s[] = "abc";

both correct


Check the answer of this question online on QuizOver.com:Question: How to declare and initialize character array in C?Permalink: http://www.quizover.com/pdf/how-to-declare-and-initialize-character-array-in-c


http://www.quizover.com/pdf/how-to-declare-and-initialize-character-array-in-c

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11.1.3. Question: float values(200) = ( 1 , 2 , 3 , 4 );

float values(200) = ( 1 , 2 , 3 , 4 );


is correct

has syntax error



Check the answer of this question online on QuizOver.com:Question: how to declare C arrays?Permalink: http://www.quizover.com/pdf/how-to-declare-c-arrays


http://www.quizover.com/pdf/how-to-declare-c-arrays

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11.1.4. Question: float values(200) = ( 1 , 2 , 3 , 4 );

float values(200) = ( 1 , 2 , 3 , 4 );


correct

syntax error

run-time error


Check the answer of this question online on QuizOver.com:Question: Arrays declaration in CPermalink: http://www.quizover.com/pdf/arrays-declaration-in-c


http://www.quizover.com/pdf/arrays-declaration-in-c




12. Chapter: Methods and Functions

1. Methods and Functions Questions

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12.1.1. Question: what is the output of the following program

what is the output of the following program


Unknown (random value)

Zero

3000


main(){ int x;printf(“%d”,x);}

Check the answer of this question online on QuizOver.com:Question: how to print int in C?Permalink: http://www.quizover.com/pdf/how-to-print-int-in-c


http://www.quizover.com/pdf/how-to-print-int-in-c

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12.1.2. Question: int multiply(int x, int y) {

return x*y;

}

int multiply(int x, int y) {

return x*y;

}


is correct

has syntax error



Check the answer of this question online on QuizOver.com:Question: How to write C method?Permalink: http://www.quizover.com/pdf/how-to-write-c-method


http://www.quizover.com/pdf/how-to-write-c-method

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12.1.3. Question: What is the output of the following program:

What is the output of the following program:


5

7

unknown


int change( int x ) { x = 7; return(x);}

main(){ int x = 5;change(x);printf(“%d”,x);}

Check the answer of this question online on QuizOver.com:Question: How to write a method in c?Permalink: http://www.quizover.com/pdf/how-to-write-a-method-in-c


http://www.quizover.com/pdf/how-to-write-a-method-in-c

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12.1.4. Question: What is the output of the following program:

What is the output of the following program:


8

unknown

both wrong


int sum( int x, int y ) { return (x + y);}

main(){ int x = 5 , y = 3;printf(“%d”, sum(x,y));}

Check the answer of this question online on QuizOver.com:Question: How to write and call method?Permalink: http://www.quizover.com/pdf/how-to-write-and-call-method


http://www.quizover.com/pdf/how-to-write-and-call-method

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8

unknown

both wrong


int sum( int x, int y ) { int z = x + y;}main(){int x = 5 , y = 3;printf(“%d”, sum(x,y));}

Check the answer of this question online on QuizOver.com:Question: return value in c method?Permalink: http://www.quizover.com/pdf/return-value-in-c-method


http://www.quizover.com/pdf/return-value-in-c-method

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5

7

unknown


int change( int x ) { x = 7;}

main(){int x = 5;change(x);printf(“%d”,x);}

Check the answer of this question online on QuizOver.com:Question: pass by value in C?Permalink: http://www.quizover.com/pdf/pass-by-value-in-c


http://www.quizover.com/pdf/pass-by-value-in-c




13. Chapter: Identifiers and Variables

1. Identifiers and Variables Questions

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13.1.1. Question: Which of the following identifiers is a legal identifier:

Which of the following identifiers is a legal identifier:


my mark

my_mark

my-mark


Check the answer of this question online on QuizOver.com:Question: how to declare a valid variable in C?Permalink: http://www.quizover.com/pdf/how-to-declare-a-valid-variable-in-c


http://www.quizover.com/pdf/how-to-declare-a-valid-variable-in-c

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13.1.2. Question: consider the following variables declaration statement:

int age,...

consider the following variables declaration statement:

int age, AGE;


Correct statement, the compiler uses age and AGE as completely different variables.

Correct statement, the compiler uses age and AGE as the same variable.

Wrong statement, because you can’t declare more than one variable with the same name.


Check the answer of this question online on QuizOver.com:Question: How to declare C valid variable?Permalink: http://www.quizover.com/pdf/how-to-declare-c-valid-variable


http://www.quizover.com/pdf/how-to-declare-c-valid-variable

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13.1.3. Question: To define a constant ABC with value 358:

To define a constant ABC with value 358:


#define ABC = 358

#define ABC = 358 ;

#define ABC 358


Check the answer of this question online on QuizOver.com:Question: how to define a constant in C?Permalink: http://www.quizover.com/pdf/how-to-define-a-constant-in-c


http://www.quizover.com/pdf/how-to-define-a-constant-in-c

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13.1.4. Question: The variables in C programming language:

The variables in C programming language:


Must be declared before being used.

Can be used without declaration

Can be used before declaration


Check the answer of this question online on QuizOver.com:Question: variable declaration in CPermalink: http://www.quizover.com/pdf/variable-declaration-in-c


http://www.quizover.com/pdf/variable-declaration-in-c

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13.1.5. Question: What is the role of variables in programming languages:

What is the role of variables in programming languages:


Perform standard functions like printing to the screen

Data storage

Both correct


Check the answer of this question online on QuizOver.com:Question: variable role in CPermalink: http://www.quizover.com/pdf/variable-role-in-c


http://www.quizover.com/pdf/variable-role-in-c

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13.1.6. Question: Which of the following identifiers is a legal identifier?

Which of the following identifiers is a legal identifier?


abc#*

#+abc

abc


Check the answer of this question online on QuizOver.com:Question: how to declare C legal iedntifier?Permalink: http://www.quizover.com/pdf/how-to-declare-c-legal-iedntifier


http://www.quizover.com/pdf/how-to-declare-c-legal-iedntifier

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13.1.7. Question: Which of the following identifiers is a legal identifier :

Which of the following identifiers is a legal identifier :


1abc

abc 1

abc1


Check the answer of this question online on QuizOver.com:Question: lega Identifier rules in CPermalink: http://www.quizover.com/pdf/lega-identifier-rules-in-c


http://www.quizover.com/pdf/lega-identifier-rules-in-c




14. Chapter: Data Types

1. Data Types Questions

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14.1.1. Question: If MSB of a binary number is "0" then it is:

If MSB of a binary number is "0" then it is:


Odd number

Even number

Positive number


Check the answer of this question online on QuizOver.com:Question: MSB in CPermalink: http://www.quizover.com/pdf/msb-in-c


http://www.quizover.com/pdf/msb-in-c

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14.1.2. Question: what is the best choice to store the number of university students:

what is the best choice to store the number of university students:


char n = 20000;

float n = 20000;

int n = 20000;


Check the answer of this question online on QuizOver.com:Question: Data types in CPermalink: http://www.quizover.com/pdf/data-types-in-c


http://www.quizover.com/pdf/data-types-in-c

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14.1.3. Question: If LSB of a binary number is "0" then it is:

If LSB of a binary number is "0" then it is:


Positive number

Even number

Odd number


Check the answer of this question online on QuizOver.com:Question: LSB in CPermalink: http://www.quizover.com/pdf/lsb-in-c


http://www.quizover.com/pdf/lsb-in-c

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14.1.4. Question: The highest digit in any number system equals:

The highest digit in any number system equals:


Zero

Base - 1

Base + 1


Check the answer of this question online on QuizOver.com:Question: max value in number systemPermalink: http://www.quizover.com/pdf/max-value-in-number-system


http://www.quizover.com/pdf/max-value-in-number-system

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14.1.5. Question: what is the storage size of the float data type (float)?

what is the storage size of the float data type (float)?


1 byte

2 byte

4 byte


Check the answer of this question online on QuizOver.com:Question: float storage size in CPermalink: http://www.quizover.com/pdf/float-storage-size-in-c


http://www.quizover.com/pdf/float-storage-size-in-c

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14.1.6. Question: what is the best choice to store the natural number PI = 3.1459

what is the best choice to store the natural number PI = 3.1459


int pi = 3.1459;

char pi = 3.1459;

float pi = 3.1459;


Check the answer of this question online on QuizOver.com:Question: different C data typesPermalink: http://www.quizover.com/pdf/different-c-data-types


http://www.quizover.com/pdf/different-c-data-types

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14.1.7. Question: what is the storage size of the integer data type (char)?

what is the storage size of the integer data type (char)?


1 byte

2 byte

4 byte


Check the answer of this question online on QuizOver.com:Question: char storage size in CPermalink: http://www.quizover.com/pdf/char-storage-size-in-c


http://www.quizover.com/pdf/char-storage-size-in-c

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14.1.8. Question: what is the storage size of the float data type (int)?

what is the storage size of the float data type (int)?


1 byte

2 byte

4 byte


Check the answer of this question online on QuizOver.com:Question: int storage size in CPermalink: http://www.quizover.com/pdf/int-storage-size-in-c


http://www.quizover.com/pdf/int-storage-size-in-c

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14.1.9. Question: to assign the value of integer x into character ch where:

int x = ...

to assign the value of integer x into character ch where:

int x = 5;

char ch;


ch = x;

ch = ascii(x);

x = ch;


Check the answer of this question online on QuizOver.com:Question: how to assign int into char in C?Permalink: http://www.quizover.com/pdf/how-to-assign-int-into-char-in-c


http://www.quizover.com/pdf/how-to-assign-int-into-char-in-c




15. Chapter: Strings

1. Strings Questions

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15.1.1. Question: To copy a string into another, given:

char s1[30] = "xyz", s2[20];

To copy a string into another, given:

char s1[30] = "xyz", s2[20];


s2 = s1;

strcpy(s2,s1);

Both wrong


Check the answer of this question online on QuizOver.com:Question: How to copy a string into another in C?Permalink: http://www.quizover.com/pdf/how-to-copy-a-string-into-another-in-c


http://www.quizover.com/pdf/how-to-copy-a-string-into-another-in-c

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15.1.2. Question: to concatenate two strings into third string, given :

char s1[30] ...

to concatenate two strings into third string, given :

char s1[30] = "hi", s2[20] = "world", s3[10];


s3 = s1 + s2;

strcpy(s3,s1);strcat(s3,s2);

s3 = strcat(s1,s2);


Check the answer of this question online on QuizOver.com:Question: how to concatenate strings in C?Permalink: http://www.quizover.com/pdf/how-to-concatenate-strings-in-c


http://www.quizover.com/pdf/how-to-concatenate-strings-in-c

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