PRF192 Test Questions with Correct Answers 100% Solved
A - Answers Once the function ends, the control is returned back to the ... function and execution
continues from the statement immediately after the function call
a. executing
b.called
c.declared
d.calling
A - Answers what number is equivalent to -4e3?
a.-4000
b.-400
c..004
d..0004
e.-40
C - Answers what is the output when the sample code below executed?
#include<stdio.h>
int fn(int v){
if(v==1||v==0)
return 1;
if(v%2==0)
return (fn(v/2)+2);
else
return(fn(v-1)+3);
}
int main()
{
printf("%d\n",fn(5));
,return (0);
}
a.6
b.9
c.8
d.7
e.5
B D - Answers which 2 options are correct about the function scanf?
a.EOF indicates that scanf filled all addresses successfully
b. scanf returns the number of addresses successfully filled of EOF
c.return avoid type
d.EOF indicates that scanf did not fill any address AND encountered an end of data character.
D - Answers what is the output when the sample code below is executed?
int s=35;
printf("%d%d%d",s==35,s+20,s>40)
a.1 35 1
b.1 55 1
c.0 55 0
d.1 55 0
C - Answers according to the standard C specification, what are the respective minimum sizes (in bytes)
of the following two data type: int and long?
a.2,8
b.4,8
c.2,4
d.2,2
,B - Answers what does the following declaration mean (if there are more than one correct answers,
choose the best one)
int *ptr[10];
a.array of 10 integer pointers
b.pointed to the array of 10 elements
c.array of 10 pointers
D - Answers what would happen if the user types in the number 3 and presses Enter when running this
program?
main(){
int x=5;
char c;
printf("Enter x=");
scanf("%d",&x);
printf("Calculate square(Y/N):");
c=getchar();
if(c==Y||c==y)
printf("sqr=%d",x*x);
}
a.sqr=9
b.Its depend on whether the user enters 'Y' or not, being asked "calculate square?"
c.sqr=25
d.the program exits without printing the square
D - Answers what is the output when the sample code below is executed?
int i,j,k,x=0;
for(i=1;i<5;i++)
for(j=0;j<i;++j){
, switch(i+j){
case 0:x=x+1;
break;
case 1:
case 2:
case 3: x=x+2;
break;
}}
printf("%d",x);
a.12
b.13
c.10
d.8
e.6
A - Answers the while loop can be written as a for loop
a.TRUE
b.FALSE
E - Answers what is the output when the sample code below is executed?
char fun[]="How are you?";
char **p;
p=fun;
while(***p!='\0'){
if(strlen(p)!=7) printf("%c",**p);
p++;}
a. How ar you
A - Answers Once the function ends, the control is returned back to the ... function and execution
continues from the statement immediately after the function call
a. executing
b.called
c.declared
d.calling
A - Answers what number is equivalent to -4e3?
a.-4000
b.-400
c..004
d..0004
e.-40
C - Answers what is the output when the sample code below executed?
#include<stdio.h>
int fn(int v){
if(v==1||v==0)
return 1;
if(v%2==0)
return (fn(v/2)+2);
else
return(fn(v-1)+3);
}
int main()
{
printf("%d\n",fn(5));
,return (0);
}
a.6
b.9
c.8
d.7
e.5
B D - Answers which 2 options are correct about the function scanf?
a.EOF indicates that scanf filled all addresses successfully
b. scanf returns the number of addresses successfully filled of EOF
c.return avoid type
d.EOF indicates that scanf did not fill any address AND encountered an end of data character.
D - Answers what is the output when the sample code below is executed?
int s=35;
printf("%d%d%d",s==35,s+20,s>40)
a.1 35 1
b.1 55 1
c.0 55 0
d.1 55 0
C - Answers according to the standard C specification, what are the respective minimum sizes (in bytes)
of the following two data type: int and long?
a.2,8
b.4,8
c.2,4
d.2,2
,B - Answers what does the following declaration mean (if there are more than one correct answers,
choose the best one)
int *ptr[10];
a.array of 10 integer pointers
b.pointed to the array of 10 elements
c.array of 10 pointers
D - Answers what would happen if the user types in the number 3 and presses Enter when running this
program?
main(){
int x=5;
char c;
printf("Enter x=");
scanf("%d",&x);
printf("Calculate square(Y/N):");
c=getchar();
if(c==Y||c==y)
printf("sqr=%d",x*x);
}
a.sqr=9
b.Its depend on whether the user enters 'Y' or not, being asked "calculate square?"
c.sqr=25
d.the program exits without printing the square
D - Answers what is the output when the sample code below is executed?
int i,j,k,x=0;
for(i=1;i<5;i++)
for(j=0;j<i;++j){
, switch(i+j){
case 0:x=x+1;
break;
case 1:
case 2:
case 3: x=x+2;
break;
}}
printf("%d",x);
a.12
b.13
c.10
d.8
e.6
A - Answers the while loop can be written as a for loop
a.TRUE
b.FALSE
E - Answers what is the output when the sample code below is executed?
char fun[]="How are you?";
char **p;
p=fun;
while(***p!='\0'){
if(strlen(p)!=7) printf("%c",**p);
p++;}
a. How ar you
