.NET Framework Quiz | Practice Test / Quiz / MCQs

1. What is a delegate?

A delegate is an object or collection initializer that adds flexibility, readability and maintainability in C#.A delegate is a collection initializer that adds flexibility, readability and maintainability in .NET.A delegate in .NET is similar to a function pointer in C or C++. Using a delegate allows the programmer to encapsulate a reference to a method inside a delegate object.A delegate is an extension method. Using a delegate allows the programmer to add flexibility, readability and maintainability in .NET.

2. The requestUri parameter must be a HTTPS address and you call the AuthenticateAsync method to connect to the online identity provider and get an access token
31. You want to create a class of which only a single instance can exist. Which design pattern best fits this objective?

AdapterBridgeSingletonDecorator

3. Which is NOT true about lambda statements?

A statement lambda can have more than one statement.If a statement lambda has a return value, it has to use a return statement.A statement lambda cannot return a value.A statement lambda requires using curly braces.

4. You must connect an app to an online identity provider using OAuth. For authentication, the app uses WebAuthenticationBroker object. You need to make sure the app registers with the provider. Which action do you take?

Construct an HTTP request URI and an HTTPS request URI.Invoke the AuthenticateAsync and GetCurrentApplicationCallbackUri methods.Invoke the GetCurrentApplicationCallbackUri method and construct an HTTPS request URI.Invoke the AuthenticateAsync method and construct an HTTPS request URI.

5. Why would the .NET Framework use Econo-JIT (Just-inTime)?

to compile only methods called at run time - which are compiled the first time the methods are called and then stored in cache to be used for execution when the same methods are called againto compile complete source code into native code in a single compilation cycle during deployment of the applicationto compile only the methods that are called at run time and then store them in cache for one minuteto compile only the methods that are called at run time and remove them from memory after execution

7. What is the purpose of CLR?

CLR performs various operations such as security checks, spell checks, assembly loading, and thread management. It provides a secure execution environment for the internet.CLR performs various operations such as memory management, security checks, assembly loading, and thread management. It also provides a secure execution environment for applications.CLR is a compiler that converts Intermediate Language to a native code.CLR sets the rules developers must use for the components that are interlanguage compatible. CLR is reusable across all the .NET-compliant languages.

8. What is the difference between System.String and string?

There is none—string is an alias for System. String.System.String is a VB.NET data type, while string is a C# type.There is no such class as System.String.string is used for fied-size strings in C#, while System.String is used for all the strings.

9. What happens when you concatenate two strings?

The first string object is modified so it contains the concatenated strings.You cannot concatenate strings in .NET.The second string object is modified so it contains the concatenated strings.A third string object is created containing the concatenated strings.

10. When break is used inside two nested for loops, does control come out of the inner for loop or the outer for loop?

It breaks from all loops.It breaks from only the inner loop.It breaks from the outer loop after the second iteration.It breaks from only the outer loop.

11. What makes a strong-named assembly?

an assembly with the name marked as importanta signed assemblyan assembly with culture informationan assembly with the version specified

13. When should you use the .NET Core class library project type?

when you want to decrease speed but have more featureswhen you want to increase the number of apps that are compatible with your library, and decrease the .NET API surface area your library can accesswhen you want to increase compilation speed and have fewer featureswhen you want to increase the .NET API surface area your library can access, and allow only .NET Core apps to be compatible with your library

14. What is an abstract class in .NET?

An abstract class allows developers to create new classes that reuse, extend, and modify the behavior defined in other classes.An abstract class declares a contract or behavior that implementing classes require. It may declare only properties, methods, and events with no access modifiers. All the declared members must be implemented.An abstract class provides a partial implementation for functionality and some abstract or virtual members that must be implemented by the inheriting entities. It can declare fields too.An abstract class is responsible for keeping track of what is actually executing and where each executing thread is.

16. What does CAS stand for and what does it do?

CAS stands for Code Application Secrets and it enables users to restrict, on a very granular level, what hidden code can do according to a level of trust for an application.CAS stands for Code Access Secrets and it enables users to restrict, on a very granular level, what hidden code can do according to a level of trust.CAS stands for Cognitive Access Security and it enables users to restrict security logic manipulation.CAS stands for Code Access Security and it enables users to restrict, on a very granular level, what managed code can do according to a level of trust.

17. What is the Liskov substitution principle?

Objects in a program should be replaceable with instances of their subtypes without altering the correctness of that program.Many client-specific interfaces are better than one general-purpose interface.A class should have only a single responsibility — that is, only changes to one part of the software's specification should be able to affect the specification of the class.Software entities should be open for extension, but closed for modification.

18. The ASP.NET Core Module is a native IIS module that plugs into the IIS pipeline to either '\_'.

host an ASP.NET Code app inside of the IIS workes process, called the in-process hosting model, or forward web requests to a backend ASP.NET Core app running the Kestrel server, called the out-of-process hosting modelhost an ASP.NET Code app inside of the IIS worker process, called the out-of-process hosting model, or forward web requests to a backend ASP.NET Core app running the Kesrel server, called the in-process hosting modelcreate IIS code the server needs in a file with the extension required, or run the IIS server in a mode compatible for ASP.NET Corepackage up your C# application and C# packages into .NET modules, or specify which of its packages should be visible to other .NET modules

20. What is the Common Type System (CTS)?

the component of CLR that enables you to run multiple versions of an application or component and CLR on the same computer at the same timethe component of CLR in which .NET Framework provides support for several languages since it contains a type system that is common with all the languagesthe component of CLR that allows you to map the content of a file to the logical address of an applicationthe component of CLI in which .NET Framework provides support for several languages since it contains a type system that is common with all the languages

21. Why would Pre-JIT be used by the .NET Framework?

to compile only the methods that are called at runtime and then store them in cache for one minuteto compile complete source code into native code in a single compilation cycle during deployment of the applicationto compile only the methods that are called at runtime and store those methods in cache after executionto compile only the methods that are called at runtime and remove them from memory after execution

22. Which statement about a read-only variable is _not_ true?

It can be initialized at declaration only.At run time, its value is evaluated.It can be either static or an instance memeber.It can be initialized in either the constructor or the declaration.

24. Which choice creates an 8-tuple containing prime numbers that are less than 20?

'var primes = Tuple.Create(2, 3, 5, 7, 11, 13, 17, 21);''var primes = Tuple.Make(2, 3, 5, 7, 11, 13, 17, 20);''var primes = Tuple.Make(2, 3, 5, 7, 11, 13, 17, 19);''var primes = Tuple.Create(2, 3, 5, 7, 11, 13, 17, 19);'

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25 Questions

❤ If you liked Fatskills, consider supporting us by checking out The Life Manuals You Never Got.

About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | OSHA Basics Quiz | What Should We Know? Privacy | Terms |

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All trademarks, logos and brand names are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.

About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | OSHA Basics Quiz | What Should We Know?
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Without work one finishes nothing. - Ralph Waldo Emerson
© 2026 Fatskills.com