sun microsystem placement queston on c

23. Regarding the scope of the variables, identify the incorrect statement: (a) automatic variables are automatically initialized to 0

(b) static variables are areautomatically initialized to 0 (c) the address of a register variable is not accessible

(d) static variables cannot be initialized with any expression 24. cond 1?cond 2?cond 3?:exp 1:exp 2:exp 3:exp 4; is equivalent to which of the following? (a) if cond 1 exp 1; else if cond 2 exp 2; else if cond 3 exp 3; else exp 4; (b) if cond 1 if cond 2 if cond 3 exp 1; else exp 2; else exp 3; else exp 4; (c) if cond 1 && cond 2 && cond 3 exp 1 exp 2exp 3exp 4; (d) if cond 3 exp 1; else if cond 2 exp 2; else if cond 3 exp 3; else exp 4;

25. The operator for exponentiation is (a) ** (b) ^ (c) % (d) not available 26. Which of the following is invalid (a) a+=b (b) a*=b (c) a>>=b (d) a**=b 27. What is y value of the code if input x=10 y=5; if (x==10) else if(x==9) else y=8; (a)9 (b)8 (c)6 (d)7 28. What does the following code do? fn(int n, int p, int r) { static int a=p; switch(n) { case 4:a+=a*r; case 3:a+=a*r; case 2:a+=a*r; case 1:a+=a*r; } } (a) computes simple interest for one year (b) computes amount on compound interest for 1 to 4 years (c) computes simple interest for four year (d) computes compound interest for 1 year 29. a=0; while(a<5) printf("%d\\n",a++); How many times does the loop occurs? (a) infinite (b)5 (c)4 (d)6 30. How many times does the loop iterated ? for(i=0;i=10;i+=2) printf("Hi\\n"); (a)10 (b) 2 (c) 5 (d) None of these 31. What is incorrect among the following a recursive function (a) calls itself (b) is equivalent to a loop (c) has a termination condition (d) does not have a return value at all

32. Which of the following go out of the loop if expn 2 becoming false (a) while(expn 1)\{...if(expn 2)continue;}

(b) while(!expn 1)\{if(expn 2)continue;...} (c) do{..if(expn 1)continue;..}while(expn 2); (d) while(!expn 2)\{if(expn 1)continue;..\} 33. Consider the following program main() { unsigned int i=10; while(i>=0) { printf("%u",i) i--; } } How many times the loop will get executed (a)10 (b)9 (c)11 (d) infinite 34.Pick out the odd one out (a) malloc() (b) calloc() (c) free() (d) realloc() 35.Consider the following program main() { int a[5]={1,3,6,7,0}; int *b; b=&a[2]; } The value of b[-1] is (a) 1 (b) 3 (c) -6 (d) none 36. # define prod(a,b)=a*b main() { int x=2; int y=3; printf("%d",prod(x+2,y-10)); } the output of the program is (a) 8 (b) 6 (c) 7 (d) None 37.Consider the following program segment int n,sum=1; switch(n) { case 2:sum=sum+2; case 3:sum*=2; break; default:sum=0; } If n=2, what is the value of sum (a) 0 (b) 6 (c) 3 (d) None of these 38. Identify the incorrect one 1.if(c=1) 2.if(c!=3) 3.if(a<b)then 4.if(c==1) (a) 1 only (b) 1&3 (c) 3 only (d) All of the above 39. The format specified for hexa decimal is (a) %d (b) %o (c) %x (d) %u 40. Find the output of the following program main() { int x=5, *p; p=&x printf("%d",++*p); } (a) 5 (b) 6 (c) 0 (d) none of these 41.Consider the following C code main() { int i=3,x; while(i>0) { x=func(i); i--; } int func(int n) { static sum=0; sum=sum+n; return(sum); } } The final value of x is (a) 6 (b) 8 (c) 1 (d) 3 43. Int *a[5] refers to (a) array of pointers

(b) pointer to an array

(c) pointer to a pointer

(d) none 44.Which of the following statements is incorrect (a) typedef struct new { int n1; char n2; } DATA; (b) typedef struct { int n3; char *n4; }ICE; (c) typedef union { int n5; float n6; } UDT; (d) #typedef union { int n7; float n8; } TUDAT;