Basic data types, operations, and flow control (decision-making statements) M2 Test

Last Updated on April 23, 2022 by Admin 3

Basic data types, operations, and flow control (decision-making statements) M2 Test

1. What happens if you try to compile and run this program?

   #include <stdio.h>
   int main(viod)
   {
      int i, j, k;
         i = 2;
      j = -2;
          if(i)
          i++;
      if(j)
          j++;
      k = i * j;
          printf("%d",k);
      return 0;
   }

   • -1
   • -2
   • 1
   • 2

2. What is the value of the x variable at the end of the following snippet?

   float x;
   x = 1. / 2 * 3;
   /***

   • 1.5
   • 1
   • 2
   • 0

3. What is the decimal value of the following integer literal?

   0x8

   • 8
   • 100
   • 10
   • the literal is invalid

4. What is the value of the c variable at the following snippet?

   char c;
   c = '\';

   • the assignment is invalid and causes a compilation error
   • \
   • '
   • \0

5. Which line of code must you insert in order for the program to program to produce the expected output?

   Expected output:

   1

   Code:

   #include <stdio.h>
   int main()
   {
       var = 1;
       printf("%d \n", var);
       return 0;
   }

   • int var;
placed above var = 1;
   • int var;
placed below var = 1;
   • int var;
placed below printf("%d \n", var);
   • No change are required – the program will compile and produce the expceted output

6. What is the value of the var variable at the end of the following snippet?

   int var;
   var = 2;
   var = var * var;
   var = var + var;
   /*
   var = var / var;
   var = var % var;
   */

   • 8
   • 1
   • 0
   • 16

7. What is the value of the k variable at the end of the following snippet?

   int i, j, k;
   
   i = 3;
   j = -3;
   
   k = (i >= i) + (j <= j) + (i == j) + (i > j);

   • 3
   • 2
   • 1
   • 0

8. What is the value of the k variable at the end of the following snippet?

   int i, j, k;
   
   i = 3;
   j = -3;
   
   k = i * j;
   k += j;
   k /= i;

   • -4
   • -8
   • 4
   • 8

9. What is the value of the k variable at the end of the following snippet?

   int i, j, k;
   
   i = 4;
   j = -5;
   
   k = --i * j++;

   • 15
   • 12
   • 16
   • 18

10. Which of the following identifiers is a vaild variable name?

    • Monte_Carlo
    • Monte-Carlo
    • Monte Carlo
    • Monte@Carlo

11. What is the value of the var variable at the end of the following snippet?

    int var;
    var = 2;
    var = var * var;
    var = var + var;
    var = var / var;
    var = var % var;

    • 0
    • 1
    • 8
    • 16

12. What is the value of the x variable at the end of the following snippet?

    int x;
    x = 1 / 2;

    • 0
    • 1
    • 2
    • 0.5

13. What is the value of the following floating-point literal?

    8765E-2

    • 87.65
    • 8.765
    • 876.5
    • 0.8765

14. What is the value of the x variable at the end of the following snippet?

    int x;
    x = 1 / 2 * 3;
    /* */

    • 0
    • 1
    • 2
    • 1.5

15. Which of the following identifiers is an invalid variable name?

    • 0_
    • _0_
    • _0
    • ___

16. What is the decimal value of the following integer literal?

    08

    • the literal is invalid
    • 8
    • 1000
    • 10

17. What is the value of the k variable at the end of the following snippet?

    int i, j, k;
    i = 4;
    j = 5;
    
    k = 1-- * ++j;

    • 24
    • 20
    • 21
    • 18

18. What is the value of the c variable at the end of the following snippet?

    char c;
    
    c = 'a';
    c -= ' ';

    • A
    • a
    • \0
    • the assignment is invalid and causes a compilation error

19. Is the following declaration valid?

    int var, var;

    • No
    • Yes

20. Which of the following is a proper integer number (in the”C” language sense)?

    • 123456
    • 123,456
    • 123.456
    • 123_456