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TCS C Interview Questions
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Write one statement equalent to the following two statements x=sqr(a); return(x); Choose from one of the alternatives a.return(sqr(a)); b.printf("sqr(a)"); c.return(a*a*a); d.printf("%d",sqr(a));

6 10648

Which of the following about the C comments is incorrect ? a.commentscan go over multiple lines b.comments can start any where in the line c.a line can contain comments with out any language statements d.comments can occur within comments

6 13292

What is the value of y in the following code? x=7;y=0; if(x=6) y=7; else y=1;

12 24800

Which of the following is not an infinite loop ? a.while(1){ .... } b.for(;;){ ... } c.x=0; do{ /*x unaltered within theloop*/ ... }while(x==0); d.# define TRUE 0 ... while(TRUE){ .... }

7 23427

what does the following function print? func(int i) { if(i%2)return 0; eale return 1; } main() { int =3; i=func(i); i=func(i); printf("%d",i);}

9 18410

how does the C compiler interpret the following two statements p=p+x; q=q+y; a.p=p+x; q=q+y b.p=p+xq=q+y c.p=p+xq; q=q+y d.p=p+x/q=q+y

4 19518

read the folllowing code # define MAX 100 # define MIN 100 .... .... if(x>MAX) x=1; else if(x 4 18500

a memory of 20 bytes is allocated to a string declared as char *s then the following two statements are executed: s="Etrance" l=strlen(s); what is the value of l ? a.20 b.8 c.9 d.21

4 11765

given the piece of code int a[50]; int *pa; pa=a; to access the 6th element of the array which of the following is incorrect? a.*(a+5) b.a[5] c.pa[5] d.*(*pa + 5)

6 28744

consider the following structure: struct num nam{ int no; char name[25]; }; struct num nam n1[]={{12,"Fred"},{15,"Martin"},{8,"Peter"},{11,Nicholas"}}; ..... ..... printf("%d%d",n1[2],no,(*(n1 + 2),no) + 1); What does the above statement print? a.8,9 b.9,9 c.8,8 d.8,unpredictable value

4 9675

identify the in correct expression a.a=b=3=4; b.a=b=c=d=0; float a=int b=3.5; d.int a; float b; a=b=3.5;

8 14378

regarding the scope of the varibles;identify the incorrect statement: a.automatic variables are automatically initialised to 0 b.static variables are are automatically initialised to 0 c.the address of a register variable is not accessiable d.static variables cannot be initialised with any expression

1 7767

the operator for exponencation is a.** b.^ c.% d.not available

5 7594

what is y value of the code if input x=10 y=5; if (x==10) else if(x==9) elae y=8; a.9 b.8 c.6 d.7

4 10625

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 interst for 1 year

7 11195

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TCS C Interview Questions


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