Mascot Placement Paper -: Aptitude & Computer Knowledge Questions With Answers

Mascot Previous Years Solved Sample Placement Papers

1. Which of the following function is used to find the first occurrence of a given string in another string?

   A. strchr()

   B. strrchr()

   C. strstr()

   D. strnset()

   Ans: C

2. What will be the output of the program in 16-bit platform (Turbo C under DOS)?

   #include
   int main()
   {
       printf(“%d, %d, %d”, sizeof(3.0f), sizeof(‘3’), sizeof(3.0));
       return 0;
   }
       

   A. 8, 1, 4

   B. 4, 2, 8

   C. 4, 2, 4

   D. 10, 3, 4

   Ans: B

3. Point out the error in the program?

   #include
   int main()
   {
       struct emp
       {
           char name[20];
           float sal;
       };
       struct emp e[10];
       int i;
       for(i=0; i<=9; i++)
           scanf(“%s %f”, e[i].name, &e[i].sal);
       return 0;
   }
       

   A. Error: invalid structure member

   B. Error: Floating point formats not linked

   C. No error

   D. None of above

   Ans: B

4. What will be the output of the program?

   #include
   int main()
   {
       enum days {MON=-1, TUE, WED=6, THU, FRI, SAT};
       printf("%d, %d, %d, %d, %d, %d\n", MON, TUE, WED, THU, FRI, SAT);
       return 0;
   }
       

   A. -1, 0, 1, 2, 3, 4

   B. -1, 2, 6, 3, 4, 5

   C. -1, 0, 6, 2, 3, 4

   D. -1, 0, 6, 7, 8, 9

   Ans: D

5. What will be the output of the program?

   #include
   struct course
   {
       int courseno;
       char coursename[25];
   };
   int main()
   {
       struct course c[] = { {102, “Java”},
                             {103, “PHP”},
                             {104, “DotNet”} };
       printf(“%d”, c[1].courseno);
       printf(“%s\n”, (*(c+2)).coursename);
       return 0;
   }
       

   A. 103 Dotnet

   B. 102 Java

   C. 103 PHP

   D. 104 DotNet

   Ans: A

6. In which stage the following code gets replaced by the contents of the file stdio.h?

   #include

   A. During editing

   B. During linking

   C. During execution

   D. During preprocessing

   Ans: D

7. Point out the error in the program

   #include
   int main()
   {
       int I;
       #if A
           printf(“Enter any number:”);
           scanf(“%d”, &i);
       #elif B
           printf(“The number is odd”);
       #endif
       return 0;
   }
       

   A. Error: unexpected end of file because there is no matching #endif

   B. The number is odd

   C. Garbage values

   D. None of above

   Ans: A