Microsoft.NET Framework Exam Quiz: Trivia!

1. Which of the following .NET components can be used to remove unused references from the managed heap?

Common Language Infrastructure

CLR

Garbage Collector

Class Loader

The Garbage Collector is responsible for automatically freeing up memory by removing unused objects from the managed heap in .NET. It identifies objects that are no longer referenced by any part of the program and deallocates their memory, making it available for future use. This process helps optimize memory usage and improves the overall performance of the application. The Common Language Infrastructure (CLI) is a specification that defines the runtime environment for executing .NET applications, while the CLR (Common Language Runtime) is the implementation of the CLI. The Class Loader is responsible for loading classes into memory during runtime.

Explanation

The Garbage Collector is responsible for automatically freeing up memory by removing unused objects from the managed heap in .NET. It identifies objects that are no longer referenced by any part of the program and deallocates their memory, making it available for future use. This process helps optimize memory usage and improves the overall performance of the application. The Common Language Infrastructure (CLI) is a specification that defines the runtime environment for executing .NET applications, while the CLR (Common Language Runtime) is the implementation of the CLI. The Class Loader is responsible for loading classes into memory during runtime.

2. Which of the following abbreviations is incorrectly expanded?

CTS - Common Type System

CLS - Common Language Specification

CAS - Component Authorization Specification

FCL - Framework Class Library

CAS - Code Access Security

Explanation

CAS - Code Access Security

3. The New object Relational Mapping (ORM) framework to be introduced with Microsoft.Net 3.5 SP1 is known as:

ADO.ORM

ADO.NET Entity Framework

ADO.Hibernate

ORM.ADO

The correct answer is ADO.NET Entity Framework. This is a new object-relational mapping (ORM) framework introduced with Microsoft.Net 3.5 SP1. It allows developers to work with relational data as objects, eliminating the need for tedious and error-prone manual mapping between objects and the database. ADO.ORM, ADO.Hibernate, and ORM.ADO are not valid frameworks and do not exist.

Explanation

The correct answer is ADO.NET Entity Framework. This is a new object-relational mapping (ORM) framework introduced with Microsoft.Net 3.5 SP1. It allows developers to work with relational data as objects, eliminating the need for tedious and error-prone manual mapping between objects and the database. ADO.ORM, ADO.Hibernate, and ORM.ADO are not valid frameworks and do not exist.

4. .NET Framework 3.5 Language Integrated Query (LINQ) support all the listed providers except:

LINQ to Objects

LINQ to XML

LINQ to ORACLE

LINQ to SQL

The .NET Framework 3.5 includes support for LINQ to Objects, LINQ to XML, and LINQ to SQL. However, it does not include built-in support for LINQ to ORACLE. LINQ to ORACLE is a third-party provider that allows developers to query Oracle databases using LINQ syntax. Therefore, the correct answer is LINQ to ORACLE.

Explanation

The .NET Framework 3.5 includes support for LINQ to Objects, LINQ to XML, and LINQ to SQL. However, it does not include built-in support for LINQ to ORACLE. LINQ to ORACLE is a third-party provider that allows developers to query Oracle databases using LINQ syntax. Therefore, the correct answer is LINQ to ORACLE.

5. Which of the following utilities can be used to compile managed assemblies into processor-specific native code?

Gacutil

Ngen

Sn

Dumpbin

The utility that can be used to compile managed assemblies into processor-specific native code is ngen. Ngen stands for Native Image Generator, and it creates native images from managed assemblies, which can improve the performance of the application by eliminating the need for just-in-time (JIT) compilation during runtime. Native images are processor-specific, meaning they are optimized for a particular hardware architecture, resulting in faster execution. Therefore, ngen is the correct choice for compiling managed assemblies into processor-specific native code.

Explanation

The utility that can be used to compile managed assemblies into processor-specific native code is ngen. Ngen stands for Native Image Generator, and it creates native images from managed assemblies, which can improve the performance of the application by eliminating the need for just-in-time (JIT) compilation during runtime. Native images are processor-specific, meaning they are optimized for a particular hardware architecture, resulting in faster execution. Therefore, ngen is the correct choice for compiling managed assemblies into processor-specific native code.

6. Which of the following statements is correct about Managed Code?

Managed code is the code that is compiled by the JIT compilers

Managed code is the code where resources are Garbage Collected

Managed code is the code that runs on top of Windows

Managed code is the code that is written to target the services of the CLR.

Managed code is the code that is written to target the services of the CLR (Common Language Runtime). This means that the code is designed to be executed within the CLR environment, which provides services such as memory management, security, and exception handling. The CLR compiles the managed code into an intermediate language (IL) that can be executed by the JIT (Just-In-Time) compiler. Therefore, the correct statement about Managed Code is that it is written to target the services of the CLR.

Explanation

Managed code is the code that is written to target the services of the CLR (Common Language Runtime). This means that the code is designed to be executed within the CLR environment, which provides services such as memory management, security, and exception handling. The CLR compiles the managed code into an intermediate language (IL) that can be executed by the JIT (Just-In-Time) compiler. Therefore, the correct statement about Managed Code is that it is written to target the services of the CLR.

7. Windows Presentation Foundation - the new user interface system was introduced with:

.NET Framework 1.1

.NET Framework 2.0

.NET Framework 3.0

.NET Framework 3.5

Windows Presentation Foundation (WPF) is a user interface system that was introduced with the .NET Framework 3.0. It is a part of the .NET Framework and provides a framework for building visually stunning and interactive user interfaces for Windows applications. WPF introduced a new way of designing and developing user interfaces, using XAML (eXtensible Application Markup Language) to define the UI elements and their behavior. With WPF, developers can create rich and engaging user experiences, taking advantage of features like hardware acceleration, vector graphics, and animation capabilities. Therefore, the correct answer is .NET Framework 3.0.

Explanation

Windows Presentation Foundation (WPF) is a user interface system that was introduced with the .NET Framework 3.0. It is a part of the .NET Framework and provides a framework for building visually stunning and interactive user interfaces for Windows applications. WPF introduced a new way of designing and developing user interfaces, using XAML (eXtensible Application Markup Language) to define the UI elements and their behavior. With WPF, developers can create rich and engaging user experiences, taking advantage of features like hardware acceleration, vector graphics, and animation capabilities. Therefore, the correct answer is .NET Framework 3.0.

8. Name the .NET Framework feature that can be used to add a method to pre-compiled classes without using inheritance?

Extension methods

Lambda Expression

Anonymous methods

Expression trees

Extension methods in .NET Framework allow developers to add new methods to existing pre-compiled classes without modifying or inheriting from those classes. This feature provides a way to extend the functionality of classes that are not under our control or cannot be modified. It is a convenient way to add custom methods to existing classes and improve code reusability without the need for inheritance.

Explanation

Extension methods in .NET Framework allow developers to add new methods to existing pre-compiled classes without modifying or inheriting from those classes. This feature provides a way to extend the functionality of classes that are not under our control or cannot be modified. It is a convenient way to add custom methods to existing classes and improve code reusability without the need for inheritance.

9. Which of the following statements is false about the Windows Communication Framework (WCF)?

WCF Service can define Data, Service, fault and Message contract

MSMQ binding, Web Service (WS) binding, Basic binding and TCP binding are part of standard binding supported by WCF

WCF also support authentication using Issued token by secure token service

WCG support Message reliability without ordered delivery

WCF does not support message reliability without ordered delivery. This means that if a message is sent, it will be delivered in the order it was sent and will not be lost or duplicated.

Explanation

WCF does not support message reliability without ordered delivery. This means that if a message is sent, it will be delivered in the order it was sent and will not be lost or duplicated.

10. Windows Card Space support following protocols except:

WS-Security

WS-Encryption

WS-SecurityPolicy

WS-Trust

The correct answer is WS-Encryption. Windows Card Space is a technology that provides a secure way to store and manage digital identities. It supports several protocols for securing communication, such as WS-Security, WS-SecurityPolicy, and WS-Trust. However, WS-Encryption is not supported by Windows Card Space. This protocol is used for encrypting and decrypting messages in web services, but it is not included in the list of supported protocols for Windows Card Space.

Explanation

The correct answer is WS-Encryption. Windows Card Space is a technology that provides a secure way to store and manage digital identities. It supports several protocols for securing communication, such as WS-Security, WS-SecurityPolicy, and WS-Trust. However, WS-Encryption is not supported by Windows Card Space. This protocol is used for encrypting and decrypting messages in web services, but it is not included in the list of supported protocols for Windows Card Space.