When preparing for a job interview, you will want to be sure that you know the questions that will be asked. While some questions may be common to most positions, others may be specific to the company you are interviewing with. In today’s competitive job market, finding the right position and getting through the interview process is important. In order to stand out and be considered for the position, you need to know how to answer common dot net interview questions.
There are always changes in technology, and as you are about to step into the next level in your career for Dot Net Jobs in Jalandhar, it is crucial that you be prepared for any questions asked. This article is about important dot net interview questions and answers from O7 Services and has 100 questions from many popular interviewers. This article helps provide a base of what might be asked during your interview process so that you are not caught off-guard. If You have certification from our Dot Net Training in Jalandhar, then this article is for you to use those questions when preparing.
You should know a few things about Microsoft Dot Net before your interview. First of all, it is an important part of Microsoft’s business strategy – nearly one-third of Microsoft’s revenue comes from selling software products and services that use Microsoft Dot Net technology. So it’s not surprising that many of the questions you’ll be asked during your interview relate to this topic. Learning this dot net Interview questions and answers can be an achievable task for anyone looking to land the perfect job. The key to succeeding in any interview is preparation, and that includes familiarizing yourself with the company’s culture and interviewing processes.
These questions will help you get an idea of what type of person the company is looking to hire and give you a sense of their abilities. These questions will help you decide if this company is right for you, and if it is a good fit for you.
.Net Framework is a programming platform that supports multiple languages like C, VB.Net, ASP.Net, F, JavaScript, SQL Server, etc. It provides a set of tools to develop rich client applications (desktop, web) using HTML5, CSS, JavaScript, and XML. This technology allows you to build highly interactive websites and mobile apps.
Java is an object-oriented language and was first released by Sun Microsystems in 1995. The main objective of this language is to provide security and reliability. Java also has a strong focus on portability. So it can be used across platforms such as Windows, Linux, Mac OS X, Android devices, etc.
Java is written in source code and compiled into bytecode which is then interpreted by the virtual machine. In contrast, .NET is based on Microsoft’s Common Language Runtime or CLR, which is a virtual machine. .NET uses managed code, which means that all the memory addresses are mapped in process space.
Learning .NET will help you become familiar with the latest developments within the .NET Framework. The knowledge gained through learning .NET can be applied in different fields such as software development, database management, networking, graphics, multimedia, etc.
The .NET Framework consists of two parts – core runtime and common language runtimes. Core runtime includes the class libraries, a garbage collector, a just-in-time compiler, a dynamic linker, a thread pooling mechanism, and a type system. Common language runtimes include C, Visual Basic .NET, JScript, PowerShell, IronPython, IronRuby, F, Boo, etc., and .NET Framework 4.0 includes support for asynchronous programming models. You can now use the new Task Parallel Library to execute long-running tasks in parallel.
There are many benefits of using the .NET Framework over other technologies. Some of them are listed below:
Both are great resources to get information about .NET Framework, but they have their own pros and cons. MSDN gives detailed documentation about the .NET Framework. However, it may not cover every aspect of the Framework. On the other hand, Google offers a wide range of search results, including blogs, news articles, forums, wikis, videos, etc.
NET Framework comprises four major components, namely, Class Libraries, BCL (Base Class Library), System Namespace, and the Framework Class Library. They are described briefly here:
Class Libraries: A set of classes that provides data structures and algorithms for various purposes. It contains the following packages:
System Namespaces: Provides a way to organize namespaces in .NET applications.
Frameworks Class Library: This contains the base classes and related interfaces used to create applications. The classes in this library provide an abstraction layer between user code and underlying implementation details. These classes are provided at the application level. This is also known as Application Programming Interface (API). Classes from this package are called API classes.
An EXE file refers to an executable file that has been compiled with Microsoft’s C and VB.NET languages. A DLL is a Dynamic Linked Library. It is used to load other assemblies into memory when you start a process.
The common type system is a part of the .NET Framework that defines rules and semantics for types. It allows developers to write programs that interoperate with each other without worrying about compatibility issues.
The latest version, .NET, supports 16 languages. They are:
Common Language Runtime is a virtual machine for executing .NET programs written in any language. It is based on the ECMA-335 standard specification. The runtime includes garbage collection and an execution engine.
In static languages, source code is compiled into object modules during the compilation phase. In dynamic languages, source code is interpreted during run time.
Microsoft developed Component Object Model, a technology that allows software components to reuse across multiple programming environments. COM allows you to create component-based applications.
ASP stands for Active Server Pages. It is one of the oldest web development technologies. ASP pages were originally designed to include server-side scripting features such as loops, forms, and database operations. ASP was based on HTML and JavaScript. With the introduction of Visual Studio, ASP pages became more sophisticated. ASP.Net Web Forms is an evolution of ASP.Net. It uses XML markup language to define the structure of the page.
Role-Based security helps to assign permissions to users according to their roles in your organization. It makes it easy to restrict access to sensitive parts of the system and maintain secure configuration settings.
System.StringBuilder class helps you build strings efficiently. You can use StringBuilder for building text strings and manipulating string objects.
System.String is a generic data type in .NET framework. It represents sequences of characters. It provides methods to get, set, remove, replace, compare and format string values.
A namespace is a logical grouping of classes, interfaces, enumerations, structures, delegates, etc., within a single namespace. It is also a container for symbols (classes, methods, properties).
Assembly is a unit of deployment. It contains all the necessary files to deploy the application. An assembly has a unique identifier called its Assembly Name or simply name. This name uniquely identifies the assembly among assemblies having the same name.
There are two types of indexes Clustered index and non-clustered index. A clustered index organizes rows into a physical order. Non-clustered indices do not have a specific physical order. They provide faster searches, but they cannot guarantee the results returned will match the original ordering of the table.
There are three types of memory used in .Net Framework, namely, Heap Memory, Stack Memory & Direct Memory.
Net Framework manages memory using Garbage Collection Methodology. It consists of four phases, i.e., Generation, Marking, Collecting, and Remarking. These steps help in managing memory in the .Net framework.
Cookies are small bits of information that are sent between the browser and the server every time the user visits a website. Cookies store information about the user’s preferences and allow the site to identify the user when he or she comes back.
IL stands for Intermediate Language. It is a programming language that can compile machine code. IL is often compiled using VB.Net source codes.
Tuples are immutable data structures that store a fixed number of elements inside a single variable. They are similar to arrays, but they don’t allow direct access to array indexes. In the .NET language, tuples have been implemented as anonymous types.
As a software developer, you might have had to take an in-person interview or even a job interview that involved Dot NET Training. You might have come across one of the many Dot Net Training in Jalandhar or Marathahalli, and if you did, here are some of the dot net interview questions and answers for freshers and experienced that you might have faced during your training with them.
HTTP handler is an interface for handling HTTP requests and responses. It is part of the ASP.NET Web API framework.
HttpModule is one of the important components of ASP.NET MVC. It extends the functionality provided by IIS by implementing custom filters and modules for processing incoming requests.
LINQ stands for Language Integrated Query. It is a query syntax based on method calls and operators that let you easily access relational databases with Microsoft’s Entity Data Model.
A custom control is a class that is derived from Control Class, whereas user control can be implemented as a separate.dll. file.
Polymorphism is an object-oriented concept where multiple objects can be treated equally because of their common characteristics. In polymorphic inheritance, subclass instances share the attributes and behavior of the base class, but the type of data stored in each instance is determined at run time.
There are two types of Polymorphism. You can choose between static or compile-time Polymorphism or dynamic or runtime.
Marshaling is a process of converting unmanaged resources (C/C++) to the managed resource(Object). An example would be the conversion of native string to System. String.
Boxing and unboxing are both forms of casting. But boxing involves the creation of a new object, while unboxing involves retrieval of the existing object.
JIT stands for Just in Time Compiler. JIT compiler converts bytecode into machine code when required. This makes the application run faster than interpreted languages like PHP and Java.
This function writes output directly to the response stream rather than writing to the page’s HTML source code.
Response. Redirect simply redirects to another URL. The difference between this and the Response. The redirect Method is that Method returns true if redirection was successful; otherwise, false.
Server. Transfer transfers request to another server. If the requested URI does not exist, then it will return an HTTP 404 error message.
Managed code refers to any kind of programming language which has been compiled before execution.
Unmanaged code is a programming language whose compilation doesn’t occur until it is executed. So, it cannot be debugged by the developer.
CAS provides security for code running inside .NET Framework. CAS helps protect classes from malicious untrusted code. The following steps are followed to implement CAS :
Are you looking for a way to improve your dot net interviewing skills? If so, check out O7 Services’ Dot Net Online Training. The course covers all the basics of dot net interview questions and answers. You’ll learn how to prepare for the interview, what to do when asked a question, and how to answer it. The biggest benefit of taking this course is that you’ll be able to confidently answer any dot net interview question that comes your way.
Assembly consists of three main components: – Header: Contains information about the assembly, including its metadata and version numbers. – Manifest: Specifies the type of libraries, COM interfaces, and other resources linked to the assembly. – DLL: Stores program code, along with references to external assemblies.
As per the official site, “If your application runs well on one platform but poorly on another, then there is probably something wrong with the way you have written your software. You need to fix what is causing the problem before looking for ways to improve performance.”
Caching is a technique where data is stored in memory so as to reduce the number of requests to the hard drive. This reduces the load on the hard disk and improves overall system performance.
Model View Controller(MVC) pattern is a software architecture design pattern that separates the concerns between presentation logic, model, and business logic.
Model view model(MVVM)pattern is a software architecture design pattern that separates the concerns between the presentation layer, view, and model.
Delegate is a keyword in the C language. It’s a reference type that holds a method signature or other object references. Delegates allow us to encapsulate complex operations into methods, making them easier to use and more reusable. Delegates are first introduced in .Net framework version 2.0.
Client-side Validation is used for validating form fields before they are sent over the wire to the server.
Server-Side Validation is used to validate data once it has been received by the server.
Stored Procedures are written in SQL and stored on the server side. They perform batch processing tasks (like insertion, deletion, updating, and so on).
Passport Authentication is used to authenticate users against a central server. It provides strong security for web applications. The main feature of Passport Authentication is the ability to control who can access the site.
Session Management Techniques refer to storing values in memory across requests. These values are usually maintained across HTTP requests and may include variables and cookies.
The Repeater control is one of the most commonly used controls in ASP.NET. A repeater allows you to generate HTML output based on data retrieved from a data source. The data source could be a database table, a list of records, or even XML documents.
Item Template is used to display items of a collection. It displays a specified template with each item in the collection.
AlternatingItemTemplate is used to display alternating rows of data.
A separator Template is used to separate columns within a grid view. It specifies whether a column should be displayed as a header or a footer.
Do you want to learn more about dot net? Do you want to know how to pass your dot net interview? If so, O7 Services is the place for you! Our experienced and certified professionals will teach you everything you need to know about dot net. In this Dot Net Training in Coimbatore, we cover topics such as dot net interview questions and answers, developing web applications with Dot Net, and more. So don’t wait any longer, sign up now and get started on your successful career in dot net.
HeaderTemplate is used to specify a row header.
FooterTemplate is used to specify what should appear at the bottom of a page. It is available for GridView and ListView.
Data Templates are used to create custom user interface elements. You define a DataTemplate in XAML markup and bind it to your view model. When the view model changes, the DataTemplate will update automatically.
Execute Scalar is used to execute a command. It runs an action associated with the Command property. Take for example, if you have a Button named “Click Me”, its Command property would be set to an Action delegate containing code that performs some operation when the button is clicked.
ExecuteNonQuery executes a Transact-SQL statement. It sends the statement to the database engine and waits until the result set is returned.
GAC is short for Global Assembly Cache. It’s a shared cache component that enables assemblies to be loaded more quickly by other programs running in the same process.
When using connection pooling, the system maintains a pool of connections between the client application and the database. This helps ensure that there are always available connections in the pool so that they can be shared among multiple clients.
Framework Class Library (FCL) contains all classes that are common across the .NET Framework. As this information to a user is that these classes are offered as part of the Framework, but they also extend beyond the Framework into the .NET Framework itself. The Controller coordinates the flow between these two components.
It includes types for collections, data access, diagnostics, IO, LINQ, networking, security, and more.
The IGCToCLR interface is an interface that is used to convert an IGC (Interoperable Graphics Container) to a CLR (Common Language Runtime) object.
Generated SQL scripts are a way to export data from one table in order to import it into another table. SQL scripts are often used for archiving purposes, as well as for generating a data backup in the event of a data disaster.
Here are a few reasons why you might want to generate SQL scripts:
Multithreading is when multiple threads run in parallel in the same process or in separate processes.
Threads provide concurrency, which is the ability to perform two or more tasks simultaneously. They give you additional control over each individual task compared to single-threaded programming.
You should never run thousands of long-running background operations in a multithreaded program because this would degrade its overall performance. You should always use thread pools instead of creating threads directly.
Asynchronous programming patterns make use of asynchronous programming techniques like Background Workers and Task Parallel Library (TPL). These patterns help programmers develop scalable and resilient solutions without the need to write callback functions or synchronous code.
ErrorProvider control is used for displaying error messages. When you enter invalid text in controls using Error Provider Control, a message appears above the error area with information about the reason. The screen image shows a button and returns to the property page where you can change the appearance of the border when there’s a focus on a more complicated form. This feature helps users find errors quickly in complex forms.
Clone creates a shallow copy of data that uses the original values for all properties except those explicitly set on the cloned object. Each column gets replicated by the clone unless any of these columns contains a reference to another data source.
BindingSource is used to display a large number of records with a small number of fields. When the binding source is used, the user can select a field name in a grid view control, click a button, open a dialog box and edit the contents of the selected row.
Copy makes a deep copy of a dataset. It copies all rows along with their relationships. It includes a full set of changes made to the underlying tables after the copy was executed. If you modify the copied row, the original dataset does not reflect the modifications until you update the original dataset.
PE stands for Portable Executable. A PE file is developed by Microsoft Corporation for Windows operating systems and its an executable file format. A PE file is a very compact binary file format containing only instructions for how to load and execute the file. The main purpose of a PE file is to contain machine-readable code so that programs created in other languages can be loaded and executed on computers running Microsoft’s .Net framework.
Serialization is a process of converting data into a serialized form for storage and transmission across computer networks and other communication channels. It is usually performed to convert objects from one state to another.
Application Object is a singleton class that represents the current instance of your application. Application Object provides access to static variables, constants, and methods defined in this class.
A Thread Pool is a collection of threads that run tasks. A TASK QUEUE is a mechanism through which we can assign jobs to different threads at runtime.
Synchronous Programming Model: Synchronous programming model is based on blocking calls and requires the use of locks.
Asynchronous Programming Model: Asynchronous programming model is based on nonblocking calls and allows multiple threads to perform operations simultaneously without affecting the execution order.
The above are some important dot net interview questions and answers to help prepare you for your next interview. Be sure to practice these questions and answers ahead of time so that you can confidently answer any questions asked. Remember that the key to a successful dot net interview is to be prepared and confident.
What experience do you have with dot net? This is a very common question and one that should be easy to answer. If you have worked with dot net before, then you definitely have an advantage over someone who has not. Being able to demonstrate your proficiency in this language will show potential employers that you’re willing and capable of learning more complex programs quickly.
When you go for an interview for a job in the world of technology, it is important to be well-versed in the basics of the programming language used in that field: dot net. But what are some key questions you may be asked during a dot net interview? We’ve compiled some of the most common ones and provided answers above.
O7 Services is a leading technology partner with ISO 9001:2015 certification, innovative solutions, and 24/7 support, ensuring business success in the rapidly evolving tech landscape.
O7 Services is a leading technology partner with ISO 9001:2015 certification, innovative solutions, and 24/7 support, ensuring business success in the rapidly evolving tech landscape.