Free download interview questions and answers in .net

Python db connections. When during the page processing cycle is ViewState available? Can the view state be encrypted? Can the view state be protected from tampering? List the event handlers that can be included in Global. Can a custom. NET data type be used in a Web form? Is it possible to see the code that ASP. Can two different programming languages be mixed in a single ASPX file?

Session state vs. View state: In some cases, using view state is not feasible. Session state is employed under the following situations:. Large amounts of data - View state tends to increase the size of both the HTML page sent to the browser and the size of form posted back. What is an interface and what is an abstract class? What is the difference between Server. Transfer and Response. Should user input data validation occur server-side or client-side? Describe Paging in ASP.

What is Data Binding? List the ASP. NET validation controls? Describe the difference between inline and code behind. That is why we use JIT compilers to translate this into a machine-readable language. Code Access Security prevents the.

NET programs from unauthorized input. It specifically stops the execution or stops the code to perform certain activities when unauthorized people try to access. CAS is hence the security mode of the. NET framework. Connection pooling is used for maintaining database connections that can be reused in the future.

There are a few requirements for executing connection pooling. Firstly, there should be multiple processing for sharing the same connection. They must have similar processing and security requirements. The string used for connection should be the same. Boxing is used for converting a value type into a reference type and un-boxing is used to convert a reference type to a value type. A value type has an assigned variable but reference type doesn't contain a variable in its memory.

Value type belongs to stack memory and reference type is heap memory. There are various languages supported by. Assembly is a code library that is partially compiled.

It is used for grouping many logical units together. We can use this for deployment and for improving security. One assembly can contain one or many code files. This is because, in. NET, different languages can be used to create one code file.

There are two types of assemblies, process, and library assembly. Generally, the. The namespace is used to group various classes for easy handling of the application. It prevents unnecessary name collisions when source code has got too many code libraries. Garbage collection is an important feature of. It is used to prevent major memory leaks in an application.

It constantly checks the application and makes free spaces wherever possible. NET has got various features that are useful in the sector of software development. When you are write the program in any language like c ,vb. It has consider as heart of.

Whenever object of memory was not disposed properly, the Garbage collector will be automatically disposed the object by checking whether the object had reference in the memory or not.

These Garbage collectors will keep on checking the memory with specific span of time. Separation of module for each task like UI,Buiness logic and data compare to asp. Test module with separate of test case. Try to understand the client navigate page in the application and similarly steps should be followed in order to reproduce this issue.

Boxing is used convert value to reference type. Collect ;. C compiler creates managed code. An interface looks like a class that can have a set of properties, methods, events and indexers, but has no implementation. Stack is allocation in the memory where value types are stored. Heap is a memory allocation where the reference types are stored. String is an immutable object and StringBuilder is a Mutable Object. Finally block is used to free resources such as database connection , objects used within the try block.

Also overhead in serializing ad Deserialization of session data from server. It is the important parent control. This control contains all the Ajax related Methods and properties.

Whenever some methods in the current class can be implemented now and fewer methods which can be implemented in the future then those needs to be declared as abstract class. In C delegates are type safe function pointers which delegate declaration follow the method declaration.

When multiple resources wants to work on a single class then we can declare that class as partial class. Group of websites which allows a single user with single User id and password. Each part of a partial class should be in the same namespace, same assemebly. XML document: The contents of an xml file in memory, starting from storage, are activated. The lock material ensures that the text does not include the key portion of a thread code, another thread is in the critical section.

When any other text attempts to enter a locked code, it will prevent and block until the material is published. Indicates the webpages table in the webpage. It has rows and columns. There is no difference between data sets and datatable, the database is a set of webpages. Creating the creation of programmers and creating the output for the preparation of the final creation.

Method call at runtime is late binding Method Overriding Method call at compile time is called early binding Method Overloading. Idisposable interface contains dispose method to release unmanaged resources like streams , database connections.

Extension methods allow the classes to extend the class source of the class, rather than relying on legacy. Once the Param keyword is used in method declaration additional parameters are not allowed.

Params type can only be single dimensional array. Application domain is a light weight process which is a container for both data and code and provides secure boundary. CLR allows multiple. LINQ uses. NET debugger and supports multiple databases. Whereas Stored Procedures need to be rewritten for multiple databases. Q What is the use of Data View? Data View is used for Filtering and sorting data in Data Table.

A jagged array is an array whose members are arrays. The members of a jagged array can be of different dimensions and sizes. The argument which needs to be re-evaluated before the execution of the method does not need to be begun earlier. C developers are in specific companies eg Provides a way to define notification tags. Class, method are called attributes. Using the mirror, the movement of information can be obtained at the moment. Read only is used wrhere the value can be changed during run time o when we want to assign the value at run time.

It is a stage for structure different applications on windows. It has a rundown of inbuilt functionalities as class, library, and APIs which are utilized to construct, convey and run web administrations and various applications. It bolsters various dialects, for example, C , VB. Net, Cobol, Perl, and so forth. This system supports object-situated programming model. The parts of. Net are Common language run-time,. Net structure, Profiling, and so forth. Be that as it may, the two significant parts are the Class library and the Common Language Runtime.

CLR gives building squares to a wide assortment of utilizations. The class library comprises of a lot of classes that are utilized to get to basic usefulness. The usefulness can be shared among various applications. It has a lot of standards which state how an information type ought to be proclaimed, characterized and utilized in the program. It depicts the information types that are to be utilized in the application. We can structure our classes and qualities by following the standards that are available in the CTS.

The standards are made with the goal that the information type proclaimed utilizing a programming language is callable by an application that is created utilizing an alternate language.

It is a standout amongst the most significant segments of the. Net structure. It gives building squares to numerous applications. An application assembled utilizing C gets ordered by its compiler and is changed over into an Intermediate language.

This is then focused to CLR. CLR does different activities like memory the board, Security checks, congregations to be stacked and string the executives.

It gives a protected execution condition to applications. With the principles referenced under CLS, the designers are made to utilize the parts that are between language good.

They are reusable over all the. Net Compliant dialects. The code is changed over into the Native language during execution. Local code is only equipment determinations that can be perused by the CPU.

The local code can be put away with the goal that it is available for ensuing calls. MSIL gives guidelines to calling strategies, introducing and putting away qualities, activities, for example, memory dealing with, special case taking care of, etc.

Every single. Net code are first gathered to IL. The code that is overseen by the CLR is called Managed code.

This code keeps running inside the CLR. Henceforth, it is important to introduce the. Net structure to execute the oversaw code. CLR deals with the memory through trash accumulation and furthermore utilizes different highlights like CAS and CTS for proficient administration of the code. Unmanaged code is any code that does not rely upon CLR for execution.

It implies it is created by some other language free of the. It utilizes its runtime condition for arranging and execution. Net is a piece of. Net innovation and it involves CLR as well. It is an open source server-side innovation that empowers the developers to assemble amazing web administrations, sites and web applications. State Management means keeping up the condition of the article. This helps a user run processes simultaneously on a single machine and have the data shared between processes.

The MemoryMappedFile. CreateFromFiles function is used to obtain a memory-mapped file object easily. It is vital in the prevention of unauthorized access to programs and resources in the runtime. It can provide limited access to the code to perform only certain operations rather than providing all at a given point in time. CAS forms to be a part of the native. NET security architecture. Garbage collection is a process that is used to maintain various aspects of memory to prevent memory leaks during program execution.

An entity called the garbage collector is used to allocate and de-allocate memory as and when required by an application. This is done by performing checks on the references of variables and objects used by the application. If an object is no longer required by the application, the memory is de-allocated and freed up.

If you want to learn Data Structures in C and master various aspects of the C programming language, make sure to check out C Programming Course from Intellipaat. GAC is a part of CLR, which is used to store the assemblies that are shared across all of the applications. A user can make use of the Gacutil application to add any file into GAC easily. Next on this top dot net interview questions blog, we will be checking a frequently asked question, i.

It is an architectural model that is used to build applications in. It serves as the foundation for the creation of applications. A delegate works similar to that of a function pointer of other programming languages. It provides a way to encapsulate the reference of a method in an object. A delegate object can be easily passed to a program after this, and then a method, which was referenced earlier, can be called.

Custom events can also be created in the class using a delegate. NET interview questions and answers, we need to understand a very important difference. Abstract Class Interface Provides the partial implementation of functionalities that is done by inheriting classes Used to declare the behavior of an implementing class Used to declare properties, methods, events, and fields as well Feilds cannot be declared using interfaces.

AutoPostBack is a property in the. NET framework, which provides automatic postback whenever an event starts its execution cycle. To use AutoPostBack, you have to set the property to True.

There are four main parameters that control connection pooling behaviors in. NET as given below:. Next up on this set of top. A tuple in. NET can hold anywhere up to eight elements. If there are more than eight elements at a time, each of those extra elements gets defined into a separate tuple. The advantage of tuples in. NET is that they can be used as parameters or return type specifiers.

NET framework interview questions and answers, let us check out an important question that is asked quite often. Role-based security, as the name suggests, is a measure implemented in.

NET to provide security access based on the roles assigned to users. Examples include the provision of access to users, administrators, and guests.

Yes, themes can be applied to ASP. NET applications easily by modifying the following code in the web.