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

Mascot Previous Years Solved Sample Placement Papers

1. Which of the following statements are correct about an array?

   1: The array int num[26]; can store 26 elements.

   2: The expression num[1] designates the very first element in the array.

   3: It is necessary to initialize the array at the time of declaration.

   4: The declaration num[SIZE] is allowed if SIZE is a macro.

   A: 1

   B: 1,4

   C: 2,3

   D: 2,4

   Ans: B

2. 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

3. Which of the following function is correct that finds the length of a string?

   Ans: A

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

   A: 8, 1, 4

   B: 4, 2, 8

   C: 4, 2, 4

   D: 10, 3, 4

   Ans: B

5. Which of the following statements are correct?

   1: A string is a collection of characters terminated by '\0'.

   2: The format specifier %s is used to print a string.

   3: The length of the string can be obtained by strlen().

   4: The pointer CANNOT work on string.

   A: A, B

   B: A, B, C

   C: B, D

   D: C, D

   Ans: B

6. Point out the error in the program?

   A: Error: invalid structure member

   B: Error: Floating point formats not linked

   C: No error

   D: None of above

   Ans: B

7. What is the similarity between a structure, union and enumeration?

   A: All of them let you define new values

   B: All of them let you define new data types

   C: All of them let you define new pointers

   D: All of them let you define new structures

   Ans: B

8. What will be the output of the program?

   
   #include <stdio.h>
   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

9. What will be the output of the program?

   A: 103 Dotnet

   B: 102 Java

   C: 103 PHP

   D: 104 DotNet

   Ans: A

10. In which stage does the following code

    #include <stdio.h>

    get replaced by the contents of the file stdio.h?

    A: During editing

    B: During linking

    C: During execution

    D: During preprocessing

    Ans: D

11. Point out the error in the program

    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

12. What are the different types of real data types in C?

    A: float, double

    B: short int, double, long int

    C: float, double, long double

    D: double, long int, float

    Ans: C