C# Test

Which of the following statements is NOT true about the UNIQUE constraint of SQL Server 2008?

MULTIPLE UNIQUE CONSTRAINTS CAN BE DEFINED ON A TABLE.

WHEN USING THE UNIQUE CONSTRAINT, ONLY ONE NULL VALUE IS ALLOWED PER COLUMN.

UNIQUE CONSTRAINT CANNOT BE REFERENCED BY A FOREIGN KEY CONSTRAINT

NONE OF THESE

1. Which of the following define the rules for .NET Languages?

Note: Select more than 1 option as correct answer

GAC

CLI

CTS

CLR

Is it possible to define custom Exception classes in C#?

YES

YES, BUT THEY HAVE TO BE DERIVED FROM SYSTEM.EXCEPTION CLASS

YES, BUT THEY HAVE TO BE DERIVED FROM SYSTEM.OBJECT CLASS

NO

Which type of class members are associated with the class itself rather than the objects of the class?

PUBLIC

PROTECTED

PRIVATE

STATIC

What is the syntax required to load and use a normal unmanaged windows DLL (e.g. kernel32.DLL) in a managed .NET C# code?

ASSEMBLY.LOAD(''KERNEL32.DLL'')

LOADLIBRARY(''KERNEL32.DLL'')

[DLLIMPORT(''KERNEL32'', SETLASTERROR=TRUE)]

UNMANAGED DLLS CANNOT BE USED IN A MANAGED .NET APPLICATION.

Which of the following will block the current thread for a specified number of milliseconds?

SYSTEM.THREADING.THREAD.SLEEP(50);

SYSTEM.THREADING.THREAD.SPINWAIT(50);

SYSTEM.THREADING.THREAD.YIELD();

NONE OF THESE.

Which of the following functions are used to wait for a thread to terminate?

WAIT()

TERMINATE()

JOIN()

ABORT()

What is the benefit of using a finally{} block with a try-catch statement in C#?

THE FINALLY BLOCK IS ALWAYS EXECUTED BEFORE THE THREAD IS ABORTED.

THE FINALLY BLOCK IS NEVER EXECUTED BEFORE THE THREAD IS ABORTED.

THE FINALLY BLOCK IS NEVER EXECUTED AFTER THE THREAD IS ABORTED.

THE FINALLY BLOCK IS ALWAYS EXECUTED BEFORE THE THREAD IS STARTED.

In which of the following namespaces is the Assembly class defined?

SYSTEM.ASSEMBLY

SYSTEM.REFLECTION

SYSTEM.COLLECTIONS

SYSTEM.OBJECT

Which of the following statements is true regarding predicate delegates in C#?

PREDICATE DELEGATES ARE USED FOR FILTERING ARRAYS.

PREDICATE DELEGATES ARE REFERENCES TO FUNCTIONS THAT RETURN TRUE OR FALSE.

PREDICATE DELEGATES ARE ONLY USED IN SYSTEM.ARRAY AND SYSTEM.COLLECTIONS.GENERIC.LIST CLASSES.

PREDICATE DELEGATES ARE ONLY USED IN CONVERTALL AND FOREACH METHODS.

Which of the following is true about friend functions in C#?

FRIEND FUNCTIONS VIOLATE THE CONCEPT OF OOPS.

FRIEND FUNCTIONS SHOULD NOT BE USED.

FRIEND FUNCTIONS ENHANCE THE CONCEPT OF OOPS IF USED PROPERLY.

FRIEND FUNCTIONS ARE NOT AVAILABLE IN C#.

Where does a C# assembly store the information regarding the other external dependencies, such as satellite assemblies, global assemblies etc, and their versions so that they can be loaded correctly when the assembly is executed?

IN THE EMBEDDED RESOURCES OF THE ASSEMBLY

IN THE MANIFEST OF THE ASSEMBLY

IN THE MSIL OF THE ASSEMBLY

IN THE WINDOWS REGISTRY DATABASE

In C#, exception handling should be used...

TO HANDLE THE OCCURRENCE OF UNUSUAL OR UNANTICIPATED PROGRAM EVENTS

TO REDIRECT THE PROGRAMS NORMAL FLOW OF CONTROL

IN CASES OF POTENTIAL LOGIC OR USER INPUT ERRORS

IN CASE OF OVERFLOW OF AN ARRAY BOUNDARY

The global assembly cache:

CAN STORE TWO DLL FILES WITH THE SAME NAME

CAN STORE TWO DLL FILES WITH THE SAME NAME, BUT DIFFERENT VERSIONS

CAN STORE TWO DLL FILES WITH THE SAME NAME AND SAME VERSION

CANNOT STORE DLL FILES WITH THE SAME NAME

Which statements will give the path where the executing assembly is currently located?

SYSTEM.REFLECTION.ASSEMBLY.GETEXECUTINGASSEMBLY().CODEBASE;

SYSTEM.REFLECTION.ASSEMBLY.GETEXECUTINGASSEMBLY().LOCATION;

APPDOMAIN.CURRENTDOMAIN.BASEDIRECTORY;

NONE OF THESE

In C#, can global functions that are not associated with a particular class be defined?

YES

YES, BUT THEY HAVE TO BE MARKED WITH THE KEYWORD STATIC.

YES, BUT THEY HAVE TO BE MARKED WITH THE KEYWORD INTERNAL.

NO

Which of the following is true for CLR?

IT IS AN INTEROPERATION BETWEEN MANAGED CODE, COM OBJECTS, AND PRE-EXISTING DLL'S (UNMANAGED CODE AND DATA).

IT IS A SOFTWARE OUTPUT UNIT OF DEPLOYMENT AND A UNIT OF VERSIONING THAT CONTAINS MSIL CODE.

IT IS THE PRIMARY BUILDING BLOCK OF A .NET FRAMEWORK APPLICATION AND A COLLECTION OF FUNCTIONALITY THAT IS BUILT, VERSIONED, AND DEPLOYED AS A SINGLE IMPLEMENTATION UNIT.

ALL OF THESE.

The ___________ namespace is not defined in the .NET class library.

SYSTEM

SYSTEM.CODEDOM

SYSTEM.IO

SYSTEM.THREAD

Which of the following is true about constructors and member functions?

A CONSTRUCTOR CAN RETURN VALUES, BUT A MEMBER FUNCTION CANNOT.

A MEMBER FUNCTION CAN DECLARE AND DEFINE VALUES, BUT A CONSTRUCTOR CANNOT.

A MEMBER FUNCTION CAN RETURN VALUES, BUT A CONSTRUCTOR CANNOT.

ALL OF THESE.

Which of the following language code is not 'managed' by default in .NET framework?

VISUAL BASIC

C#

C++

JSCRIPT

Which object oriented term is related to protecting data from access by unauthorized functions?

INHERITANCE

DATA HIDING

POLYMORPHISM

OPERATOR OVERLOADING

One of the ternary operators provided in C# is:

*

::

?:

<<

What type of code is written to avail the services provided by Common Language Runtime?

MSIL

UNMANAGED CODE

MANAGED CODE

C#/VB/JS

The .NET Framework consists of:

THE COMMON LANGUAGE RUNTIME

A SET OF CLASS LIBRARIES

THE COMMON LANGUAGE RUNTIME AND A SET OF CLASS LIBRARIES

NONE OF THESE

Which of the following keywords prevents a class from being overridden further?

ABSTRACT

SEALED

FINAL

INTERNAL

Which of the following is true regarding a null and an empty collection in C#?

AN EMPTY COLLECTION AND A NULL ARE BOTH OBJECTS.

AN EMPTY COLLECTION AND A NULL BOTH HAVE THE SAME MEANING.

BOTH AN EMPTY COLLECTION AND A NULL DO NOT REFER TO ANY OBJECT

AN EMPTY COLLECTION IS AN OBJECT WHILE THE NULL KEYWORD IS A LITERAL.

Which of the following statements are true regarding the ref and out parameters in C#?

A VARIABLE THAT IS PASSED AS AN OUT PARAMETER NEEDS TO BE INITIALIZED, BUT THE METHOD USING THE OUT PARAMETER DOES NOT NEED TO SET IT TO SOMETHING.

THE OUT PARAMETER CAN BE USED TO RETURN THE VALUES IN THE SAME VARIABLE PASSED AS A PARAMETER OF THE METHOD. ANY CHANGES MADE TO THE PARAMETER WILL BE REFLECTED IN THE VARIABLE.

THE REF KEYWORD CAN ONLY BE USED ON ONE METHOD PARAMETER.

THE REF PARAMETER IS CONSIDERED INITIALLY ASSIGNED BY THE CALLEE. AS SUCH, THE CALLEE IS NOT REQUIRED TO ASSIGN TO THE REF PARAMETER BEFORE USE. REF PARAMETERS ARE PASSED BOTH INTO AND OUT OF A METHOD.

What is the difference between the String and StringBuilder class objects with respect to mutability?

STRING OBJECTS ARE MUTABLE, WHILE STRINGBUILDER OBJECTS ARE IMMUTABLE.

STRING OBJECTS ARE IMMUTABLE, WHILE STRINGBUILDER OBJECTS ARE MUTABLE.

THERE IS NO DIFFERENCE BETWEEN THEM IN THIS CONTEXT, AS BOTH ARE IMMUTABLE.

THERE IS NO DIFFERENCE BETWEEN THEM IN THIS CONTEXT, AS BOTH ARE MUTABLE.

What are Satellite assemblies in C# .NET?

ADDITIONAL ASSEMBLIES THAT ARE USED ONLY BY THE MAIN C# APPLICATION

USER CONTROL ASSEMBLIES USED BY THE C# APPLICATION

ASSEMBLIES THAT CONTAIN ONLY RESOURCE INFORMATION AND NO CODE

ASSEMBLIES THAT CONTAIN ONLY CODE AND NO RESOURCE INFORMATION

An Interface represents which kind of relationship?

IS A

HAS A

CAN DO

NONE OF THESE

Why is it a bad practice to use iteration variables in lambda expressions?

ITERATION VARIABLES CAN CAUSE PROBLEMS WITH ACCESSING A MODIFIED CLOSURE.

ITERATION VARIABLES ARE PASSED BY VALUE, WHICH PRODUCES UNEXPECTED RESULTS

ITERATION VARIABLES ARE PASSED BY REFERENCE, WHICH PRODUCES UNEXPECTED RESULTS.

IT IS PERFECTLY VALID TO USE ITERATION VARIABLES IN LAMBDA EXPRESSIONS.

Which of the following is the correct way to implement deep copying of an object in C#?

BY USING THE SYSTEM.RUNTIME.SERIALIZATION.FORMATTERS.BINARY.BINARYFORMATTER CLASS.

BY USING THE SYSTEM.REFLECTION.DEEPCOPY CLASS.

BY USING THE DEEPCOPY() METHOD OF OBJECT CLASS.

BY USING THE MEMBERWISECLONE() METHOD OF OBJECT CLASS.

What is the purpose of the vshost.exe file in Visual Studio?

IT IS USED TO IMPROVE THE PERFORMANCE OF THE VISUAL STUDIO DEBUGGER.

IT IS USED TO IMPROVE THE PERFORMANCE OF VISUAL STUDIO PLUGINS.

IT IS USED TO IMPROVE THE PERFORMANCE OF THE C# COMPILER.

IT IS USED TO LOAD VISUAL STUDIO CONFIGURATION DATA.

What is the difference between data types

STRING IS A VALUE TYPE, WHILE SYSTEM.STRING IS A REFERENCE TYPE.

THERE IS NO DIFFERENCE,STRING IS JUST AN ALIAS OF THE SYSTEM.STRING DATA TYPE.

STRING VARIABLE IS LIMITED TO STORING ALPHABETIC CHARACTERS, WHILE SYSTEM.STRING DOES NOT HAVE ANY LIMIT.

NONE OF THESE.

How can a single instance application be created in C#?

SYSTEM.THREADING.SINGLEINSTANCE CAN BE USED TO ENSURE THAT ONLY ONE INSTANCE OF A PROGRAM CAN RUN AT A TIME.

SYSTEM.THREADING.MUTEX CAN BE USED TO ENSURE THAT ONLY ONE INSTANCE OF A PROGRAM CAN RUN AT A TIME.

LOCKS CAN BE USED TO FORCE A C# APPLICATION TO LAUNCH A SINGLE INSTANCE AT A TIME.

C# APPLICATIONS CANNOT BE RESTRICTED TO A SINGLE INSTANCE.

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Exam Type:	C# MCQ Skill Test
Questions Type:	Multiple Choice Questions
Total Questions:	35
Time Limit:	30 Minutes
Last Update	June, 2025

Pass C# Exam

C# Quiz

Which of the following statements is NOT true about the UNIQUE constraint of SQL Server 2008?

1. Which of the following define the rules for .NET Languages?

Is it possible to define custom Exception classes in C#?

Which type of class members are associated with the class itself rather than the objects of the class?

What is the syntax required to load and use a normal unmanaged windows DLL (e.g. kernel32.DLL) in a managed .NET C# code?

Which of the following will block the current thread for a specified number of milliseconds?

Which of the following functions are used to wait for a thread to terminate?

What is the benefit of using a finally{} block with a try-catch statement in C#?

In which of the following namespaces is the Assembly class defined?

Which of the following statements is true regarding predicate delegates in C#?

Which of the following is true about friend functions in C#?

Where does a C# assembly store the information regarding the other external dependencies, such as satellite assemblies, global assemblies etc, and their versions so that they can be loaded correctly when the assembly is executed?

In C#, exception handling should be used...

The global assembly cache:

Which statements will give the path where the executing assembly is currently located?

In C#, can global functions that are not associated with a particular class be defined?

Which of the following is true for CLR?

The ___________ namespace is not defined in the .NET class library.

Which of the following is true about constructors and member functions?

Which of the following language code is not 'managed' by default in .NET framework?

Which object oriented term is related to protecting data from access by unauthorized functions?

One of the ternary operators provided in C# is:

What type of code is written to avail the services provided by Common Language Runtime?

The .NET Framework consists of:

Which of the following keywords prevents a class from being overridden further?

Which of the following is true regarding a null and an empty collection in C#?

Which of the following statements are true regarding the ref and out parameters in C#?

What is the difference between the String and StringBuilder class objects with respect to mutability?

What are Satellite assemblies in C# .NET?

An Interface represents which kind of relationship?

Why is it a bad practice to use iteration variables in lambda expressions?

Which of the following is the correct way to implement deep copying of an object in C#?

What is the purpose of the vshost.exe file in Visual Studio?

What is the difference between data types

How can a single instance application be created in C#?

C# Test Explained