TRB-CS-VIP ONLINE COACHING CENTER (QUIZ-2) C++ Programming

TRB - MASTER-COMPUTER (QUIZ-2)

Quiz

 

1. 
   1 . A default catch block catches
   1.   all thrown objects
   2.   no thrown objects
   3.   any thrown object that has not been caught by an earlier catch block
   4.   all thrown objects that have been caught by an earlier catch block
2. 2 . Format flags may be combined using
   1.   the bitwise OR operator (|)
   2.   the logical OR operator (||)
   3.   the bitwise AND operator (&)
   4.   the logical AND operator (&&)
3. 3 . The use of the break statement in a switch statement is
   1.   optional
   2.   compulsory
   3.   not allowed. It gives an error message
   4.   to check an error
4. 4 . To expose a data member to the program, you must declare the data member in the _____ section of the class
   
   1.   common
   2.   exposed
   3.   public
   4.   unrestricted
5. 5 . Which of the following are valid characters for a numeric literal constant?
   1.   a comma
   2.   a dollar sign ($)
   3.   a percent sign (%)
   4.   None of the above
6. 6 . A function that changes the state of the cout object is called a(n) _____
   1.   member
   2.   adjuster
   3.   manipulator
   4.   operator
7. 7 . A C++ program contains a function with the header int function(double d, char c). Which of the following function headers could be used within the same program?
   
   1.   A. char function(double d, char c)
   2.   B. int function(int d, char c)
   3.   C. both (a) and (b)
   4.   D. neither (a) nor (b)
8. 8 . When the compiler cannot differentiate between two overloaded constructors, they are called
   1.   overloaded
   2.   destructed
   3.   ambiguous
   4.   dubious
9. 9 . If you design a class that needs special initialization tasks, you will want to design a(n) _____
   1.   housekeeping routine
   2.   initializer
   3.   constructor
   4.   compiler
10. 10 . Which type of statement does not occur in computer programs?
    1.   sequence
    2.   loop
    3.   denial
    4.   selection
11. 
    11 . The newline character is always included between
    1.   pair of parentheses
    2.   pair of curly braces
    3.   control string
    4.   &
12. 12 . To be called object-oriented, a programming language must allow
    1.   functions that return only a single value
    2.   #include files
    3.   inheritance
    4.   All of the above
13. 13 . A function that returns no values to the program that calls it is _____
    1.   not allowed in C++
    2.   type void
    3.   type empty
    4.   type barren
14. 14 . The keyword used to define a structure is _____
    1.   stru
    2.   stt
    3.   struct
    4.   structure
15. 15 . If container classes are carefully constructed, then these tools are available to work with structures that are not ______
    
    1.   valid without container classes
    2.   programmer-defined
    3.   type-specific
    4.   public
16. 16 . Header files often have the file extension _____
    1.   .H
    2.   .HE
    3.   .HEA
    4.   .HEAD
17. 17 . The #ifndef directive tests to see whether ________
    1.   a class has been defined
    2.   a variable has been given a value
    3.   a class has no variable definitions
    4.   any objects of the class have been instantiated
18. 18 . The generic type in a template function
    1.   must be T
    2.   can be T
    3.   cannot be T for functions you create, but may be for C++'s built-in functions
    4.   cannot be T
19. 19 . When a child class function is called, the compiler looks first for a matching function name in the _____
    1.   class of the object using the function name
    2.   immediate ancestor class
    3.   base class
    4.   descendant class
20. 20 . A function that is called automatically each time an object is destroyed is a
    1.   constructor
    2.   destructor
    3.   destroyer
    4.   terminator
21. 
    21 . If you create an instantiation of a class template with an int, and then create a second instantiation with a double, then
    1.   you must precede each function call with the word int or double
    2.   once a function is used as one type, it becomes unavailable for use with the other type
    3.   there is no difference in the procedure to call a member function
    4.   you cannot perform this operation in C++
22. 22 . The step-by-step instructions that solve a problem are called _____
    
    1.   an algorithm
    2.   a list
    3.   a plan
    4.   a sequential structure
23. 23 . The type to be used in an instantiation of a class template follows ________
    
    1.   the generic class name
    2.   the keyword template
    3.   the keyword class
    4.   the template definition
24. 24 . Which of the following statements allows the user to enter data at the keyboard?
    
    1.   cin << currentPay;
    2.   cin >> currentPay;
    3.   cout << currentPay;
    4.   cout >> currentPay;
25. 25 . When you pass a variable _____, C++ passes only the contents of the variable to the receiving function
    
    1.   by reference
    2.   by value
    3.   C. globally
    4.   D. local
26. 26 . The best form of coupling is _____
    1.   complete
    2.   tight
    3.   loose
    4.   free
27. 27 . Paying attention to the important properties while ignoring inessential details is known as________
    
    1.   selectiveness
    2.   polymorphism
    3.   abstraction
    4.   summarizing
28. 28 . What does C++ append to the end of a string literal constant?
    
    1.   a space
    2.   a number sign (#)
    3.   an asterisk (*)
    4.   a null character
29. 29 . An array name is a _____
    
    1.   subscript
    2.   formal parameter
    3.   memory address
    4.   prototype
30. 30 . To enter a comment in a C++ program, you begin the comment with _____
    
    1.   **
    2.   &&
    3.   \\
    4.   //
31. 31 . Which of the following is(are) invalid string constant(s)?
    
    1.   '7.15 pm'
    2.   "i like e"
    3.   "7.3el2"
    4.   "1234el2"
32. 32 . You define a structure type globally because _____
    
    1.   you save many lines of code by not rewriting an identical structure definition in each function that uses it
    2.   you will never change its definition
    3.   it is required in C++
    4.   All of the above
33. 33 . Overloaded functions are required to
    
    1.   have the same return type
    2.   have the same number of parameters
    3.   perform the same basic functions
    4.   None of the above
34. 34 . Redirection redirects
    
    1.   a stream from a file to the screen
    2.   a file from a device to a stream
    3.   a device from the screen to a file
    4.   the screen from a device to a stream
35. 35 . You mark the beginning of a function's block of code with the _____
    
    1.   v
    2.   *
    3.   {
    4.   }
36. 36 . Sending a copy of data to a program module is called _______
    
    1.   passing a value
    2.   making a reference
    3.   recursion
    4.   setting a condition
37. 37 . Of the three ways to pass arguments to functions, only passing by _____ and passing by _____ allow the function to modify the argument in the calling program
    
    1.   reference, pointer
    2.   array, location
    3.   array, pointer
    4.   None of the above
38. 38 . To use either an input or output file, the program must include the _____ header file
    1.   filestream.h
    2.   fstream.h
    3.   instream.h
    4.   inoutstream.h
39. 39 . A widget is to the blueprint for a widget as an object is to
    
    1.   a member function
    2.   a class
    3.   an operator
    4.   a data item
40. 40 . C++ allows you to define the same functions more than once in the same program _____
    
    1.   if the definitions are identical
    2.   if the definitions are included in two separate #include files
    3.   if the definitions are located in a single #include file that is included more than once
    4.   C++ does not allow you to define the same functions more than once in the same program
41. 41 . Which of the following assigns the number 5 to the area variable?
    
    1.   area 1 = 5
    2.   area = 5
    3.   area == 5
    4.   area --> 5
42. 42 . A base class may also be called a
    
    1.   child class
    2.   subclass
    3.   derived class
    4.   parent class
43. 43 . The _____ mode tells C++ to open a file for input
    
    1.   add::ios
    2.   in::file
    3.   ios::app
    4.   ios::in
44. 44 . Using the wardrobe structure within the ShopList structure is an example of a good programming principle, known as _____
    
    1.   reusability
    2.   polymorphism
    3.   redundancy
    4.   recursion
45. 45 . When you omit parameters from a function call, values can be provided by
    
    1.   formal parameters
    2.   reference parameters
    3.   overloaded parameters
    4.   default parameters
46. 46 . The first element in a string is
    
    1.   the name of the string
    2.   the first character in the string
    3.   the length of the string
    4.   the name of the array holding the string
47. 47 . Variables declared outside a block are called _____
    
    1.   global
    2.   universal
    3.   stellar
    4.   external
48. 48 . The compiler converts your C++ instructions into _____
    
    1.   edited code
    2.   object code
    3.   source code
    4.   translated code
49. 49 . A fundamental type such as int or double is a _____
    
    1.   programmer-defined type
    2.   complex type
    3.   nonscalar type
    4.   scalar type
50. 50 . The return type you code for all constructors is _____
    
    1.   void
    2.   the class type
    3.   the same type as the first data member defined in the class
    4.   no type

C++ Programming