Point Out Correct Statements

Question 6 :

Which of the following statements are correct about the below C-program?

#include
int main()
{
    int x = 10, y = 100%90, i;
    for(i=1; i<10; i++)
    if(x != y);
        printf("x = %d y = %d\n", x, y);
    return 0;
}
1 : The printf() function is called 10 times. 2 : The program will produce the output x = 10 y = 10 3 : The ; after the if(x!=y) will NOT produce an error. 4 : The program will not produce output.


A). 1
B). 2, 3
C). 3, 4
D). 4
Answer : Option B

Question 7 :

Which of the following sentences are correct about a for loop in a C program? 1: for loop works faster than a while loop. 2: All things that can be done using a for loop can also be done using a while loop. 3: for(;;); implements an infinite loop. 4: for loop can be used if we want statements in a loop get executed at least once.


A). 1
B). 1, 2
C). 2, 3
D). 2, 3, 4
Answer : Option D

Question 8 :

Which of the following statements are correct about the below program?

#include
int main()
{
    int n = 0, y = 1;
    y == 1 ? n=0 : n=1;
    if(n)
        printf("Yes\n");
    else
        printf("No\n");
    return 0;
}


A). Error: Declaration terminated incorrectly
B). Error: Syntax error
C). Error: Lvalue required
D). None of above
Answer : Option C

Question 9 :

Which of the following sentences are correct about a switch loop in a C program? 1: switch is useful when we wish to check the value of variable against a particular set of values. 2: switch is useful when we wish to check whether a value falls in different ranges. 3: Compiler implements a jump table for cases used in switch. 4: It is not necessary to use a break in every switch statement.


A). 1,2
B). 1,3,4
C). 2,4
D). 2
Answer : Option B