i Nautix Aptitude - General

C,C++ & Unix paper:

            C++ paper:

1. cin is an
   a.function
   b.object
   c.class.  

2. what is the use of scope resolution operator?

3. advantage of inline function?

4. copy constructor is ans:call by value.                                                      

5. ques on vertual destructor?

6. inautix one ques?

7. one q' on container class?

8. con't remember the ques but the ans is Virtual base class

         C paper

1. How will u terminate the statement? ans: ;

2. select the wrong one
   a.a+=1;
   b.a*=2;
   c.a**=1;(ans)
   d.a>>=1;

3. main()
   {
     int n,i=1;
     switch(n)
        {
         case 1:
                   some stuff;
         case 2:
                   some stuff;
         default:
          i=10;
       }
    printf("i=%d",i);
    }
   what will be value of i; ans:non of the above
   
   4.pick ut the wrong one
      #typedef some stuff
       {
         ---
       };

4. pick ut the wrong one
   #typedef some stuff
   {
      ---
   };

5. one q's on do loop?

6. pick the odd one                                                                                         
   a.malloc
   b.calloc
   c.new(ans)

7. char *ptr;
   p=malloc(20);
   How will u de allocate the memory?
   a.delete.
   b.free.

8. main()
   {
      char **p=="Hello";
      printf("%s",**p);
   }Ans: Garbage or nothing

9. main()
   {
      printf("%d%c\n");
      printf("%d%c\n");
   }Ans: Garbage Value

10. main()
    {
       int x==5;
       printf("%d%d",x++,++x);
    }Ans==6 6

11.  main()
    {
       int x==4;
       printf("%d",printf(" %d %d ",x,x) );
    }Ans: 4 4 5

12. main()
    {
    union 
    {
       int i;
       char p; 
       struct                                                                                                        
    {
       int t;
       char e;
       char o;
     };
    };
     printf("%d\n",sizeof(l) );
    }Ans: 4

13.  main()
    {
       int i==0,n==6;
       while(n--0);
              i+==n;
              printf("%d\n",i);
      }Ans: -1

14. main()
    {
        char a[]=="Hello";
        printf("%c\n",*a++);
    }
    Ans: Error

15.  a=3,b=2,c=1;
    What's the value of k?
    k=  a< b < c-1;
    Ans: 0

16. main()
    {
            int a==3;
     do
    {
       printf("%d", a);                                                                                                  
       a= 1;
     }while(a0);
    }
    Ans: 3

17. It is not "exact" Question; But the given Answers is:
    a) PASS1 PASS2
    b) PASS1 FAIL1
    c)FAIL1 FAIL2
    d)FAIL1 PASS2
    main()
    {
       char c==-32;
       int i==-64;
       unsigned u==-26;
       if(ci)
    printf("PASS1");
      if( i < c)
            printf("PASS2");
    else
           printf("FAIL1");
    if(i<U)
        printf("PASS2");
    else
         printf("FAIL2");
    }Ans: PASS1 PASS2 PASS1

18. main()
    {
    int i==0;
    for( i==0; i<= ;i++)
        {
            switch(i)                                                                                          
                {
                case 0: i+==5;
                case 1: i+==2;
                case 2: i+==5;
                default: i+==4;
                break;
        }
            printf("%d",i);
    }
    Ans: 16 21

19. main()
           {
             int i==4;
             switch(i)
               {
                 case 1:
                           printf("HEllo"):
                 case default: // "case" should not come with "default"
                      printf("****");
              }
       }
       Ans: Error

20. main()
          {
            int sum= 0,count;
            for(count= 1;sum+= count)
            printf("%d\t",sum);
            }
    Ans: Error

21. #define cond(a) a=e && a<=0                                                                    
    main()
            {
              char s='R';
              if( cond(s) )
                  printf("UPPER CASE");
             else
                 printf("LOWER CASE");
            }Ans:UPPER CASE

22. .main()
         {
           static int i==5;
           printf("%d\t",i--);
           if( i)
           main();
      }Ans: 5 4 3 2 1

23. main()
         {
           char *a1=="new",*a2=="dictionary",*t;
           swap(a1,a2); 
           printf("(%s%s)",a1,a2);
           t=¡;
           a1=¢;
           a2= t;
           printf("-(%s%s)",a1,a2);
        }
         swap( char *s1,char *s2)                                                                       
              {
                 char *temp;
                 s1==s2;
                 s2=s1;
                 temp= s1;
             }
      Ans: (newdictionary)-(dictionarynew)

24.  main()
           {
               char *a1= "new",*a2= "dictionary",*t;
               swap(a1,a2); 
               printf("(%s%s)",a1,a2);
               t=¡;
               a1=¢;
               a2=t;
               printf("-(%s%s)",a1,a2);
            }
            swap( char *s1,char *s2)
              {
                char *temp;
                s1= s2;
                s2= s1;
                temp= s1;
         }
           Ans: (newdictionary)-(dictionarynew)

25. main()
      {
        int a[]=={ 10,20,30,40,50};
        char*p==(char*)a;
        printf("%d", * ( (int *) p+4);                                                                       
       }Ans: 50

26.  

             UNIX paper:

1.   How will u do version maintaince? sccs(source code control system)

2. a program in shell script? find the o/p.

3. awk $2

4. which signal u can't catch?ans:sigkill

5. core dump is due to ?ans:segmentation fault.                                            

6. .echo "todays date is 'date'"; o/p = ?

7. process synchronisation is done by ?ans:s'phore

8. process synchronisation is done by ?ans:s'phore