GlobalEdge Paper
main()
{ int arr[]={ 1,2,3,4 };
int *ptr ;;;;
ptr++ = arr;
printf("%d,%d",ptr[2],arr[2]);
return 0;
}
what is the output :
a> compile time error :multiple termination statements for pointer
b> lvalue required for ptr
c> prints 3 3
d> printd 4 3
ans b: lvalue required for ptr;
2>
main()
{
char s[10];
scanf ("%s",s);
printf(s);
}
what is the output if input is abcd :
a> prints abcd
b> compiler error
c> prints abcd and 6 junk characters
d> printd s
ans a: prints abcd.
3>
main()
{
char c = 255;
printf ("%d",c);
return 0;
}
what is the output
a> illegal character assignment
b> prints -1
c> prints 2
d> prints 255
ans b: prints -1.
4>
main()
{
int i;
for (i=7;i<=0;i--)
printf ("hello\n");
}
what is the output
a> prints hello 7 times
b> prints hello 8 times
c> prints hello once
d> prints nothing
ans b: prints nothing.
5>
main()
{
printf( printf ("world") );
}
a> prints world
b> prints printf ("world")
c> prints nothing
d> compiler error
ans d: compiler error.
computer concepts
1> A c source code file can be
a> compiled only
b> interpreted only
c> both compiled and interpreted
d> nothing
ans c : both compiled and interpreted
2> c programming approach is
a> Top down
b> bottom up
c> both topdown and bottom up
d> none of the above
ans a:top down approach
3> The access time is less for
a> hard disk
b> cache
c> registers
d> main memory
ans c:registers
4>resolving of external variables in a program is done at
a>complie time
b>run time
c>link time
4>load time
ans c: link time.
5> interrupts inform process about
a> events external to process asynchronously
b> events external to process synchronously
c> both a and b
d> events internal to a process
ans a: events external to process asynchronously
/* C question and answers
All questions are tested in Turbo C compiler and have not been
tested in gcc or (linux platform) */
----------------------------------------------------
1)
#include<stdio.h>
main()
{
scanf("%d");
printf();
}
which of the following is correct?
a)compilation error
b)Run time error
c)No output
d)depends on the compiler
ans : a
---------------------------------------------------------
2)
#include<stdio.h>
#define islower(c) ('a'<=(c) && (c)<='z')
#define toupper(c) (islower(c)?(c)-('a'-'A'):(c))
main()
{
char *p="i am fine";
while(*p)
printf("%c",toupper(*p++));
}
a)bcd
b)AFE
c)aFe
d)BCd
ans : b ( macro substitution 3 times)
----------------------------------------------------------
3)
#include<stdio.h>
main()
{
200;
printf("tricky problem");
}
a)warning message
b)compilation error
c)run time error
d)none of these
ans : a
------------------------------------------------------------
4)which is the null statement?
a) ;
b) {}
c) '\0';
d)all of these
ans : a
------------------------------------------------------------
5)what is the correct prototype of printf function ?
a)printf(char *p,...);
b)printf(const *char *p,...);
c)printf(const char *p,...);
d)printf(const *char p,...);
ans : c
-----------------------------------------------------------
/* questions on computer concepts */
1)which of the following is not a system file?
a).sys
b).com
c).ini
d)none
ans : d
---------------------------------------------------------------
2)A magnetic tape is equivalent to which of the following structure?
a)Graphs
b)trees
c)Lists
d)Dictionaries
ans : c
------------------------------------------------------------
3)For a linked list implementation which searching technique is not
applicable?
a)linear search
b)none
c)quick sort
d)binary search
ans : d
----------------------------------------------------------------
4)Encryption and decryption is done in which layer?
a)DLL
b)Network layer
c)transport layer
d)presentation layer
ans : d
------------------------------------------------------------
5)which of the following is not performed by the OS?
a)cpu shceduling
b)memory management
c)Transaction
d)none
ans : c
-----------------------------------------------------------
