11th Third Revision Test Question Answer 2019

11th Standard

    Reg.No. :
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Computer Science

Time : 02:30:00 Hrs
Total Marks : 70
    15 x 1 = 15
  1. What are the two symbols used in Binary number system?

    (a)

    0,1

    (b)

    +, -

    (c)

    2,4

    (d)

    20,21

  2. How many bits constitute a word?

    (a)

    8

    (b)

    16

    (c)

    32

    (d)

    determined by the processor used.

  3. Which of the following Operating system are support Mobile Devices?

    (a)

    Windows 7

    (b)

    Linux

    (c)

    BOSS

    (d)

    iOS

  4. Match the following.

    (i) Tablet OS (1) Linux
    (ii) Desktop OS (2) Android
    (iii) Smart phone OS (3) ios
    (iv) OS used in super computer (4) Windows 7
    (a)

    1,4,3,2

    (b)

    1,2,4,3

    (c)

    4,3,1,2

    (d)

    3,4,2,1

  5. If i = 5 before the assignment i = i-1 after the assignment, the value of i is

    (a)

    5

    (b)

    4

    (c)

    3

    (d)

    2

  6. Which of the following is not an invariant of the assignment? m, n := m2+, n3+

    (a)

    m mod2

    (b)

    n mod3

    (c)

    3 X m - 2 X n

    (d)

    2 X m - 3 X n

  7. Which of the following are possible in c++?

    (a)

    Polymorphism

    (b)

    Encapsulation

    (c)

    Inheritance

    (d)

    All of these

  8. How many times the following loop with execute? for (int i=0; i<10; i++)

    (a)

    0

    (b)

    10

    (c)

    9

    (d)

    11

  9. Which of the following function should be called explicitly using its name?

    (a)

    built-in function

    (b)

    derived function

    (c)

    user-defined function

    (d)

    pre-defined function

  10. int age[]={6,90,20,18,2}; How many elements are there in this array?

    (a)

    2

    (b)

    5

    (c)

    6

    (d)

    4

  11. The paradigm which aims more at procedures.

    (a)

    Object Oriented Programming

    (b)

    Procedural programming

    (c)

    Modular programming

    (d)

    Structural programming

  12. The inner class is also known as

    (a)

    container class

    (b)

    nested class

    (c)

    enclosing class

    (d)

    inline class

  13. Which of the following provides flexibility of creating multiple type of objects for a class?

    (a)

    function overloading

    (b)

    operator overloading

    (c)

    constructor overloading

    (d)

    object overloading

  14. Inheritance is process of creating new class from

    (a)

    Base class

    (b)

    abstract

    (c)

    derived class

    (d)

    Function

  15. Which of the following Tamil keyboard layout not used by Android OS?

    (a)

    NHM Wirter

    (b)

    E-Kalappai

    (c)

    Lippikar

  16. 6 x 2 = 12
  17. What are the components of a CPU?

  18. What is Bus?

  19. What are the advantages of memory management in Operating System?

  20. Distinguish between a condition and a statement.

  21. Does testing the loop condition affect the loop invariant? Why?

  22. What is the use of setw( ) format manipulator?

  23. Write the two types of function used in C++?

  24. Why it is considered as a good practice to define a constructor though compiler can automatically generate a constructor?

  25. What are the forms asymmetric encryption used?

  26. 6 x 3 = 18
  27. Write the truth table of fundamental gates

  28. Write the usage of operating system.

  29. What is abstraction?

  30. Explain conditional statement.

  31. Write a short program to print following series:
    (a) 1 4 7 10...... 40

  32. Define an Array? What are the types?

  33. What do you mean by modularization and software reuse?

  34. Discuss the benefit of constructor overloading?

  35. Why do you need for inheritance?

  36. 5 x 5 = 25
  37. Explain in detail the different types of Mouse.

  38. Explain the characteristics of a microprocessor.

  39. How will you copying files and folders to removable disk?

  40. Exchange the contents: Given two glasses marked A and B. Glass A is full of apple drink and glass B is full of grape drink. Write the specification for exchanging the contents of glasses A and B, and write a sequence of assignments to satisfy the specification.

  41. Explain control statement with suitable example.

  42. What is Recursion? Write a program to find GCD using recursion.

  43. Write a C++ program to find the difference between two matrix.

  44. Write the output of the following program.
    #include < iostream >
    using namespcae std;
    class simple
    {
    private:
    int a,b;
    public:
    simple(int m, int n)
    {
    a=m;
    b=n;
    cout << "\nParameterized Constructor of classsimple" << endl;
    }
    void putdata( )
    {
    cout << "\nThe two integers are ..." << a <<"\t << b << endl;
    cout << "\nThe sum of the variables " << a << " + " << b << "=" << a+b;
    }
    };
    int main( )
    {
    simple s1(10,20),s2(30,45);//Created two objects with different values created
    cout << "\n\t\tObject 1\n";
    s 1.putdata( );
    cout << "\n\t\tObject 2\n";
    s2.putdata( );
    return 0;
    }

  45. Answer the question (i) to (v) after going through the following class.
    classBook
    {
    intBookCode ; char Bookname[20];float fees;
    public:
    Book( ) //Function 1
    {
    fees=1000;
    BookCode=1;
    strcpy (Bookname,"C++");
    }
    void display(float C) //Function 2
    {
    cout< }
    ~Book( ) //Function 3
    {
    cout << "End of Book Object"< }
    Book (intSC,char S[ ],float F) ; //Function 4
    };
    (i) In the above program, what are Function 1 and Function 4 combined together referred as?
    (ii) Which concept is illustrated by Function3? When is this function called/ invoked?
    (iii) What is the use of Function3?
    (iv) Write the statements in main to invoke function1 and function2
    (v) Write the definition for Function4.

  46. Consider the following and answer the questions given below:
    class MNC
    {
    char Cname[25] ; //Company name
    protected:
    char Hoffice[25]; // Head office
    public:
    MNC( ) ;
    char Country [25];
    void EnterData ( ) ;
    void DisplayData ( ) ;
    };
    class Branch: public MNC
    }
    long NOE [Number of employees
    \\country char Ctry [25];
    protected:
    void Association ( ) ;
    public:
    Branch ( ) ;
    void add  ( ) ;
    void Show ( ) ;
    };
    class Outlet: public Branch
    char State [25];
    public:
    Outlet ( ) ;
    void Enter ( ) ;
    void Output ( ) ;
    };
    (i) Which class constructor will be called first at the time of decla~ation of an object Outlet?
    (ii) How many types of on object belonging to class output require?
    (iii) Name the number functional which are accessed from the objects of class Outlet.
    (iv) Name the data numerical, which are accessible from the object(s) of class Outlet.

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