Friday, 16 December 2011

55.Which of the following statements is correct?

A.There is one garbage collector per program running in memory.
B.There is one common garbage collector for all programs.
C.An object is destroyed by the garbage collector when only one reference refers to it.
D.We have to specifically run the garbage collector after executing Visual Studio.NET.
Answer: Option B

54.Which of the following statements are correct about the C#.NET code snippet given below?

class Sample
{
    static int i;
    int j;
    public void proc1()
    {
        i = 11;
        j = 22;
    }
    public static void proc2()
    {
        i = 1;
        j = 2;
    }
    static Sample()
    {
        i = 0;
        j = 0;
    }
}
A.i cannot be initialized in proc1().
B.proc1() can initialize i as well as j.
C.j can be initialized in proc2().
D.The constructor can never be declared as static.
E.proc2() can initialize i as well as j.
Answer: Option B

53.Is it possible to invoke Garbage Collector explicitly?

A.Yes
B.No
Answer: Option A

52.How many times can a constructor be called during lifetime of the object?

A.As many times as we call it.
B.Only once.
C.Depends upon a Project Setting made in Visual Studio.NET.
D.Any number of times before the object gets garbage collected.
E.Any number of times before the object is deleted.
Answer: Option B

51.Which of the following statements are correct about constructors in C#.NET?

1.Constructors cannot be overloaded.
2.Constructors always have the name same as the name of the class.
3.Constructors are never called explicitly.
4.Constructors never return any value.
5.Constructors allocate space for the object in memory.
A.1, 3, 5
B.2, 3, 4
C.3, 5
D.4, 5
E.None of these
Answer: Option B

50.Can static procedures access instance data?

A.Yes   
B.No
Answer: Option B

49.In which of the following should the methods of a class differ if they are to be treated as overloaded methods?

1.Type of arguments
2.Return type of methods
3.Number of arguments
4.Names of methods
5.Order of arguments
A.2, 4
B.3, 5
C.1, 3, 5
D.3, 4, 5
Answer: Option C