Question

These are my answere to the following questions: are they right?
1. B
2. T
3. T
4. T
5. F
6. T
7. A
8. D
9. E
10. B
11. B
12. A
13. A
14. D
15. C
16. D
17. T
18. C
19. T
20. T
21. T
22. A
23. T
24. D
25. B
26. A
27. A
28. A
29. T
30. C
31. D
32. A
33. T
34. F
35. T
36. T
37. T
38. T
39. D
40. B
41. T
42. T
43. F
44. T
45. T
46. T
47. T
48. B
49. F
50. F

1. The operators: &  |  ^  are:

a) AND OR NOT
b) AND OR XOR
c) AND NOT NAND
d) AND NOR XOR
e) none of these

2.  Strings are objects, not types. (T/F)

3.  Classes are blueprints for objects. (T/F)
     
4. Both malloc and new return addresses. (T/F)

5. Objects combine both data and programs in one bundle. (T/F)

6. C++ requires the use of objects when writing application programs. (T/F)

7. One of the methods NOT normally used to send data from the CALLED function to the CALLING function in C is:
      a. global variable 
                b. pointer to variable in calling function
      c. instruction pointer register 
                d. return value of called function
      e. none of the above

8. A benefit of C++ is:
        a. reusable code via Inheritance.
        b. modularization via Encapsulation.
        c. abstraction thru the use of Templates. 
        d. all of the above. 
        e. none of these.

9. The constant "C" occupies how many bytes?
       a. 4  
                 b. 3 
                 c. 2  
                 d. 1  
                 e. none, it's stored on the Stack.
    
10. Many variables of the same Type, having the same Name,
grouped together and referenced via an integer value
constitute:

        a. a class.
        b. an array.
        c. a struct.
        d. a pointer.
        e. none of these.

11. Define: Pass by Reference:

        a. pass a copy of the variable's contents on the stack 
        b. pass the address of the variable on the stack 
        c. write a temp file to disk 
        d. write a temp buffer to working storage 
        e. none of the above

12. Define: Pass by Value

        a. pass a copy of the variable's contents on the stack 
        b. pass the address of the variable on the stack 
        c. write a temp file to disk 
        d. write a temp buffer to working storage 
        e. none of the above

13. Given: 
        float f , g ;
           .
           .
           .
        the better choice of the two comparisons below would be:

        a. if (f >= g) 
        b. if (f == g)

14. To copy the contents of int b[200]  to int a[200], you would:

        a. a = b ;
        b. memcpy(a, b, sizeof(a)) ;
        c. use a correctly written for() loop
        d. b or c above
        e. a, b, or c above

15. If you want to write a statement to read in the users name (first, (maybe
a middle) , last) from the keyboard, your usual method would be:

        a. cin >> namevar
        b. cin.get()
        c. cin.getline()
        d. each is as good as the others
        e. only a and b would work

16. Given: 

        int a[10][5] ; 

to access the second item in the 
3rd row, we would use:

a. a[2][3] ;    
b. a[3][2] ;    
c. *(*(a+3)+2) ; 
d. *(*(a+2)+1) ;        
e. none above

17. The Preprocessor reads in machine language programs that save us
repetitive coding. (T/F)
     
18. In C standard library I/O, the function used to disconnect a
FILE * pointer from the disk hardware after writing is:

a. fclose()     
b. close()      
c. unlink()     
d. chmod()      
e. none above
     
19. The ifstream and ofstream objects are both examples of
object creation by inheriting from the fstream object. (T/F).
     
20. sprintf() can translate between decimal,
Hexadecimal, and Octal. (T/F).
     
21  If the file path is inclosed in double quotes, the Preprocessor
looks in the absolute or relative path specified between the quotes. (T/F)

22. When searching a sorted array:

a. linear searching is more efficient
b. binary searching is more efficient
c. efficiency is a function of array type
d. binary is faster only if it is an array of floats
e. none of these are true
     
23. To do array processing, it is necessary to know
the size an array will be when you are writing the
program. (T/F).
     
24. To print the address of x given: int x, * pt; pt = &x ; you would
      a. printf("%X\n", pt) ; 
                b. printf("%X\n", &x) ; 
                c. printf("%X\n", *pt) ; 
                d. a & b above 
                e. none of the above

25. An array may never be initialized at compile time
      a. true b. false

26. Suppose an array has been defined as int arr[3]; , can you use the expression arr++ ?
      a. yes b. no

27. To allocate a two-dimensional array, a definition like: int arf[50,50] is used.
      a. true b. false

28. When you pass an array as an argument to a function, what is actually passed?
      a. the address of the array 
                b. the values of the elements in the array 
                c. a duplicate of the array 
                d. the number of elements in the array 
                e. none of the above

29. An assignment statement itself has a value, just like a variable.  (T/F)

30. In a simple if statement with no else, what happens if the condition is false?

        a. the program searches for the last else in the program 
        b. nothing 
        c. control "falls through" to the statement following the if construction 
        d. the body of the if statement is executed
     
31. The purpose of the " ? : " operator is to:

a. select the highest of the two values 
b. select the more equal of two values 
c. select one of two values alternately 
d. select one of two values depending on a condition    
e. none of the above
     
32. The statements following else in an if-else construction are executed when

        a. the conditional expression following if is false 
        b. the conditional expression following if is true
     
33. It is possible to print decimal-point-aligned 
financial data using cout using the sprintf() function. (T/F).
     
34. A non-static global variable may be altered 
by functions which are declared in any source file 
included in the project. (T/F)
     
35. A static global function may only be called by 
functions which are defined in the same 
source file. (T/F)
     
36. A static int variable is allocated only 
once in the run of the program, and keeps its 
value between calls of the function in which 
it is defined. (T/F)
     
37. C variables declared inside a function {} 
are visible only to the calling routine. (T/F)
     
38. Given: 
        main(int argc, char *argv[], char ** env) 
        
        argv[0] is local only to main, and may not be directly
        seen or used by any other function. (T/F)

39. static_cast<double>() is most similar to:

a. (double *)
b. (char *)
c. (int)
d. (double)
e. none of these
     
40.     Given: int a = 8 , b = 9 ;
        in order to get an accurate quotient, you must do:

        a.  cout << a / b ;
        b.  cout << (double) a / b ;
        c.  cout << (double) (a / b) ;
        d.  b or c above.
        e.  they all produce an accurate answer.

41. Encapsulation allows hiding how things work and only revealing
the controls. (T/F)

42. Abstraction means using a model that feels like the real thing
to manage complexity. (T/F)

43. Basic operators like '=' and '+' may never be overloaded. (T/F)

44. Each C++ program has a *.cpp file containing main(). (T/F)

45. The std::string::c_str() method returns a pointer the the string object. (T/F)

46. The signed char V  contains: 11111110  This number is negative. (T/F)

47. Vectors have the same usage as arrays, but they expand to the size you need.

48. The code:
   Charlie::scramble(x.begin(), x.end()) ; 
   futz.scramble(y.begin(), y.end()) ; 
            a) runs a member function, then a static function.  
                 b) runs a static function, then a member function.

49.  Objects may give birth to other Objects, either from solo
inheritance, or by multiple inheritance. (T/F)

50. Every C program must have one and only one function named MAIN() (T/F)

Answer 1

1. B - correct
2. T - correct
3. T - correct
4. T - correct
5. F - incorrect
6. T - correct
7. A - Incorrect, It is C
8. D - correct
9. E - Incorrect, It is C
10. B - correct
11. B - correct
12. A - correct
13. A - correct
14. D - correct
15. C - correct
16. D - Incorrect, It is B
17. T - correct
18. C - Incorrect, It is A
19. T - correct
20. T - correct
21. T - correct
22. A - Incorrect, It is B
23. T - correct
24. D - Incorrect, It is C
25. B - correct
26. A - Incorrect, It is B
27. A - Incorrect, It is B
28. A - correct
29. T - correct
30. C - correct
31. D - correct
32. A - correct
33. T - correct
34. F - correct
35. T - correct
36. T - correct
37. T - correct
38. T - correct
39. D - correct
40. B - correct
41. T - correct
42. T - correct
43. F - correct
44. T - correct
45. T - correct
46. T - correct
47. T - correct
48. B - correct
49. F - correct
50. F - Incorrect, It is True