Online Random Test

Ques 1 :
Is it possible to invoke Garbage Collector explicitly?

(A) Yes

(B) No

Ques 2 :
Which of the following statements is correct about the C#.NET code snippet given below?

namespace PskillsConsoleApplication
{
class Sample
{
public int func()
{
return 1;
}
public Single func()
{
return 2.4f ;
}
}
class Program
{
static void Main(string[ ] args)
{
Sample s1 = new Sample();
int i;
i = s1.func();
Single j;
j = s1.func();
}
}
}

(A) func() is a valid overloaded function.

(B) func() cannot be considered overloaded because: return value cannot be used to distinguish between two overloaded functions.

(D) The call j = s1.func() will assign 2.4 to j.

Ques 3 :
How can we sort the elements of the array in descending order?

(A) By calling Sortdescending() method

(B) By calling Sort() method

(D) By calling Sortreverse() method

Ques 4 :
Is there any errors in this -> EmployeeMgmt constructor: Public int EmployeeMgmt { emp_id = 100; }

(A) Return type

(B) Formal parameters

(D) Name

Ques 5 :
Which of the following class cannot be inherited?

(A) Abstract

(B) Sealed

(D) None

Ques 6 :
Which file contains configuration data for each unique URl resource used in project?

(A) web.config

(B) global.asax

(D) assemblyinfo.cs

Ques 7 :
Which of these is a valid path declaration?

(A) string strPath="c:\\abc.txt";

(B) string strPath=@"c:\abc.txt";

(D) All of these

Ques 8 :
Boxing in .Net allows the user to convert

(A) a double type to interger

(B) a interger type to double

(D) a reference type to a value type

Ques 9 :
Feature of a local variable

(A) It must be declared within a method

(B) It represent a class object

(D) It must accept a class

Ques 10 :
Managed methods will be marked as ------------ in MSIL code

(A) mscorjit

(B) cil

(D) None

Ques 11 :
Code that targets the Common Language Runtime is known as

(A) Legacy

(B) Managed Code

(D) Native Code

Ques 12 :
Which of the following statements is correct about the C#.NET program given below?

namespace PskillsConsoleApplication
{
class Baseclass
{
int i;
public Baseclass(int ii)
{
i = ii;
Console.Write("Base ");
}
}
class Derived : Baseclass
{
public Derived(int ii) : base(ii)
{
Console.Write("Derived ");
}
}
class MyProgram
{
static void Main(string[ ] args)
{
Derived d = new Derived(10);
}
}
}

(A) The program will report an error in the statement base(ii).

(B) The program will work correctly if we replace base(ii) with base.Baseclass(ii).

(D) The program will work correctly only if we implement zero-argument constructors in Baseclass as well as Derived class.

Ques 13 :
Which of the following ways to create an object of the Sample class given below will work correctly?

class Sample
{
int i;
Single j;
double k;
public Sample (int ii, Single jj, double kk)
{
i = ii;
j = jj;
k = kk;
}
}

(A) Sample s3 = new Sample(10, 1.2f, 2.4);

(B) Sample s2 = new Sample(10, 1.2f);

(D) Sample s1 = new Sample(10);

Ques 14 :
What does Dispose method do with connection object?

(A) Close the connection

(B) Temporary dispose the connection

(D) All of the above

Ques 15 :
What property is used on the datatable to indicate conflicts after update method is called?

(A) HasCollision

(B) HasErrorConflict

(D) HasDataError

Ques 16 :
What is the Difference between Convert.ToInt32 and Int.Parse?

(A) Both are Same

(B) Convert.ToInt32 Can't Handle Null Values ,it will throws rgumentNullException error.

(D) Both can Handle Null Values

Ques 17 :
Which of the following in not service model (three-tier application) in c sharp?

(A) Presentation (UI)

(B) Business (logic and underlying code)

(D) Data (from storage or other sources)

Ques 18 :
Different ways a method can be overloaded in C#.NET

(A) Different parameter data types

(B) Different order of parameters

(D) All of above

Ques 19 :
A variable which is declared inside a method is called a________variable

(A) Local

(B) Private

(D) Serial

Ques 20 :
Which of the following statements are TRUE about the .NET CLR?

1. It provides a language-neutral development & execution environment.
2.It ensures that an application would not be able to access memory that it is not authorized to access.
3.It provides services to run "managed" applications.
4.The resources are garbage collected.
5.It provides services to run "unmanaged" applications.

(A) Only 1 and 2

(B) Only 1, 2 and 4

(D) Only 4 and 5