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Interview Questions and Answers

Razor syntax is a templating engine used to embed server-side code (C# or VB.NET) within HTML. It provides a concise way to generate dynamic web content in ASP.NET MVC and Razor Pages.

Tag Helpers are classes that enable server-side code to participate in creating and rendering HTML elements in Razor views. They provide a more HTML-friendly alternative to traditional HTML helpers and can enhance code readability.

Entity Framework Core (EF Core) is a modern object-relational mapper (ORM) for .NET. It allows you to interact with databases using .NET objects, reducing the amount of database-specific code you need to write.

Database migrations are used to update the database schema based on changes made to your EF Core model. You can create and apply migrations using the `dotnet ef migrations add` and `dotnet ef database update` commands.

Error handling can be implemented using middleware to catch unhandled exceptions. You can also use exception filters to handle exceptions within controllers. Logging is also important for debugging and monitoring.

ASP.NET Core applications can be deployed to various platforms, including Windows servers, Linux servers, and cloud platforms like Azure and AWS. Deployment options include publishing to a folder, using Docker containers, or using deployment pipelines.

Dependency injection (DI) is a design pattern that allows you to provide dependencies (services) to classes through their constructors. ASP.NET Core has built-in DI support, making it easier to manage dependencies and write testable code.

Services are configured in the `ConfigureServices` method of the `Startup.cs` file. You can register services using methods like `AddTransient`, `AddScoped`, and `AddSingleton` to control their lifetime.

Middleware components are used to handle HTTP requests and responses in a pipeline. They can perform tasks like authentication, authorization, logging, exception handling, and request modification.

Authentication verifies the identity of a user, while authorization determines what resources a user is allowed to access. ASP.NET Core provides built-in support for various authentication schemes, such as cookies, JWT, and OAuth. Authorization can be implemented using policies and roles.

Routing is handled through a routing table that maps incoming URLs to specific Controller actions. You can define routes using attribute routing (annotations on Controller actions) or convention-based routing (defined in `Startup.cs`).

ASP.NET Web API is used for building RESTful APIs that can be consumed by various clients, such as web browsers, mobile apps, and other services. It supports HTTP methods like GET, POST, PUT, DELETE.

A View is responsible for displaying data to the user. It typically uses data from the Model to render HTML, CSS, and JavaScript that the user sees in the browser.

A Controller handles user input, interacts with the Model to retrieve or update data, and selects which View to display to the user. It acts as an intermediary between the Model and the View.

Advantages include: improved code organization, testability, reusability, separation of concerns, and parallel development.

ASP.NET is the original framework, tied to the Windows operating system and .NET Framework. ASP.NET Core is a modular, cross-platform, and open-source framework built from the ground up. ASP.NET Core offers performance improvements and supports modern web development practices.

The primary programming models are: ASP.NET MVC (Model-View-Controller), ASP.NET Web Forms (event-driven with server controls), ASP.NET Web API (for building RESTful APIs), and ASP.NET Razor Pages (page-focused approach within MVC).

MVC stands for Model-View-Controller, a design pattern that separates an application into three interconnected parts: The Model manages data, the View displays data, and the Controller handles user input and updates the Model/View.

ASP.NET is an open-source, server-side web application framework designed for building dynamic web pages and web applications using .NET technologies. It supports multiple programming models, including MVC, Web Forms, and Web API.

Key benefits include: platform independence (cross-platform with .NET Core), high performance, security, scalability, a large developer community, rich tooling (Visual Studio), code reusability, and easy integration with other Microsoft technologies.

Tag Helpers are classes that enable server-side code to participate in creating and rendering HTML elements in Razor views. They provide a more HTML-friendly alternative to traditional HTML helpers and can enhance code readability.

Entity Framework Core (EF Core) is a modern object-relational mapper (ORM) for .NET. It allows you to interact with databases using .NET objects, reducing the amount of database-specific code you need to write.

Database migrations are used to update the database schema based on changes made to your EF Core model. You can create and apply migrations using the `dotnet ef migrations add` and `dotnet ef database update` commands.

Error handling can be implemented using middleware to catch unhandled exceptions. You can also use exception filters to handle exceptions within controllers. Logging is also important for debugging and monitoring.

ASP.NET Core applications can be deployed to various platforms, including Windows servers, Linux servers, and cloud platforms like Azure and AWS. Deployment options include publishing to a folder, using Docker containers, or using deployment pipelines.

Razor syntax is a templating engine used to embed server-side code (C# or VB.NET) within HTML. It provides a concise way to generate dynamic web content in ASP.NET MVC and Razor Pages.

Dependency injection (DI) is a design pattern that allows you to provide dependencies (services) to classes through their constructors. ASP.NET Core has built-in DI support, making it easier to manage dependencies and write testable code.

Services are configured in the `ConfigureServices` method of the `Startup.cs` file. You can register services using methods like `AddTransient`, `AddScoped`, and `AddSingleton` to control their lifetime.

Middleware components are used to handle HTTP requests and responses in a pipeline. They can perform tasks like authentication, authorization, logging, exception handling, and request modification.

Authentication verifies the identity of a user, while authorization determines what resources a user is allowed to access. ASP.NET Core provides built-in support for various authentication schemes, such as cookies, JWT, and OAuth. Authorization can be implemented using policies and roles.

ASP.NET Web API is used for building RESTful APIs that can be consumed by various clients, such as web browsers, mobile apps, and other services. It supports HTTP methods like GET, POST, PUT, DELETE.

Routing is handled through a routing table that maps incoming URLs to specific Controller actions. You can define routes using attribute routing (annotations on Controller actions) or convention-based routing (defined in `Startup.cs`).

Advantages include: improved code organization, testability, reusability, separation of concerns, and parallel development.

A View is responsible for displaying data to the user. It typically uses data from the Model to render HTML, CSS, and JavaScript that the user sees in the browser.

A Controller handles user input, interacts with the Model to retrieve or update data, and selects which View to display to the user. It acts as an intermediary between the Model and the View.

ASP.NET is the original framework, tied to the Windows operating system and .NET Framework. ASP.NET Core is a modular, cross-platform, and open-source framework built from the ground up. ASP.NET Core offers performance improvements and supports modern web development practices.

The primary programming models are: ASP.NET MVC (Model-View-Controller), ASP.NET Web Forms (event-driven with server controls), ASP.NET Web API (for building RESTful APIs), and ASP.NET Razor Pages (page-focused approach within MVC).

MVC stands for Model-View-Controller, a design pattern that separates an application into three interconnected parts: The Model manages data, the View displays data, and the Controller handles user input and updates the Model/View.

ASP.NET is an open-source, server-side web application framework designed for building dynamic web pages and web applications using .NET technologies. It supports multiple programming models, including MVC, Web Forms, and Web API.

Key benefits include: platform independence (cross-platform with .NET Core), high performance, security, scalability, a large developer community, rich tooling (Visual Studio), code reusability, and easy integration with other Microsoft technologies.

ASP.NET is an open source, server-side web application framework created by Microsoft.

Advantages

- Asp.Net is a server-side technology, so the code is processed on the windows server before it is displayed in the web browser.

- Re

When an ASP.NET page runs, it performs a series of processing steps. These include initialization, instantiating controls, restoring and maintaining state, running event handler code, and rendering.

The two major components of .NET Framework is the Common Language Runtime (CLR) and the .NET Framework Class Library.

ASP.NET Data-Bound Web Server Controls Overview:

- Binding a Data-bound Web Server Control to Data.

- GridView Control.

- DetailsView Control.

- FormView Control.

- Repeater Control.

- DataList Control.

-

ASP.NET provides the following validation controls:

- RequiredFieldValidator.

- RangeValidator.

- CompareValidator.

- RegularExpressionValidator.

- CustomValidator.

- ValidationSummary.

View state is the method that the ASP.NET page framework uses to preserve page and control values between round trips.

- Caching is a technique of storing frequently used data/information in memory, so that future requests for that data are served

The session is stored in the following for ways in ASP.NET.

- InProcMode. It is a default session mode and a value store in web server memory (IIS).

- State Server Mode. In this mode session data is stored in separate server.

- SQL S

The Login control contains text boxes for the user name and password and a check box that allows users to indicate whether they want the server to store their identity using ASP.NET membership and automatically be authenticated the next time they visit t

ASP.NET supports Forms Authentication, Passport Authentication, and Windows authentication providers. The mode is set to one of the authentication modes: Windows, Forms, Passport, or None. The default is Windows. If the mode is None, ASP.NET does not appl

Globalization is the mechanism by which the application is designed so that users from all over the world can access it (multiple cultures). On the other hand, localization is the customization process to make our application behave according to the exist

Item stored in ViewState exist for the life of the current page.

Response. write() is used to display the normal text and Response. output. write() is used to display the formatted text.

Key Web Service Technologies:

- XML- Describes data.

- SOAP- Provides a communication mechanism between services and applications.

- WSDL- Offers a uniform method of describing web services to other programs.

- UDDI- Enables t

Every object belongs to a class and every class contains one or more related objects.

A DataSet is a container for one or more DataTable objects that contain the data you retrieve from the database.

An assembly is a collection of types and resources that are built to work together and form a logical unit of functionality. Assemblies take the form of executable (.exe) or dynamic link library (. dll) files, and are the building blocks of . NET applicat

System Analysis is a method in which facts are gathered and interpreted, problems are defined and a system is decomposed into it's components. Design emphasizes a conceptual solution that fulfills the requirements, rather than it's implementation. System

The steps of the design process include: Identify the need, Research. Brainstorm. Develop possible solutions. Construct a prototype. Test and evaluate. Revisions. Completion.

State- This is a value on an objects attribute at a given time. Behavior- This defines the behavior of the object, and their reactions. Identity- An object has an identity characterizing it's very life. The identification allows any object to be identifie

They are abstraction, encapsulation, inheritance, and polymorphism.

An interaction model is a design model that ties an application together in such a way as to benefit it's target users conceptual models. This determines how all the artifacts and behavior that are part of an application interrelate in ways that represen

NA

Relate with a project you have done.

The data structure is a data collection, management and storage system that allows for easy access and alteration. More specifically, the data structure is the set of data values, the relationship between them and the functions or operations that can be a

In a linear data structure, the data elements are organized in a linear order where every element is connected to it's previous and next adjacent elements. For a non-linear data structure, the data elements are hierarchically connected.

Traversing - access each data item exactly once; Searching - is used to find the location of one or more data items that fulfill the condition; Inserting - is add new data items to the given list of data items; Deleting -  is to remove a particular data i

Algorithm - is a procedure for solving a problem, based on conducting a sequence of specified actions. A computer program can be viewed as an elaborate algorithm.

Greedy Algorithms - is algorithm that follows the problem-solving heuristic

The most fundamental types of algorithm are: Recursive Algorithms, Dynamic programming algorithm, Backtracking algorithm, Divide and Conquer Algorithm, Greedy Algorithm, Brute Force Algorithm.

Recursion is a method used to allow a function call it'self. This technique offers a way to break down complicated problems into simple problems that are easier to solve.

Explain specific instances with respect to the job JD.

Model–view–controller(MVC) is a software design pattern used for developing user interfaces that separate the related program logic into three interconnected elements. Each of these components is built to handle specific development aspects of an applicat

Explain specific instances with respect to the job JD.

(1) Choose the Right Technology when picking up a programming language, Database, Communication Channel.

(2) The ability to run multiple servers and databases as a distributed application over multiple time zones.

(3)Database backup, correcti

Object-oriented programming is a programming paradigm based on the concept of \"objects\", which can contain data, in the form of fields, and code, in the form of procedures. A feature of objects is that objects' own procedures can access and often modify

Most modern development processes can be described as agile. Other methodologies include waterfall, prototyping, iterative and incremental development, spiral development, rapid application development, and extreme programming.

Software Development Life Cycle (SDLC) is a process used to design, develop and test high-quality software. Also referred to as the application development life-cycle.

Software testing is called the process or method of identifying errors in an application or system, such that the application works according to the requirement of end-users. It is an examination carried out to provide users the information on the quality

Explain specific instances with respect to the job JD.

A good software engineer is someone who is not only competent to write code but also competent to create, produce and ship useful software.

The primary aim of the code review is to ensure that the codebase overall product quality is maintained over time. It helps give a fresh set of eyes to identify bugs and simple coding errors. All of the tools and processes of code review are designed to t

Use a phased life-cycle plan, Continuous validation, Maintain product control, Use the latest programming practices, Maintain clear accountability for results.

Software engineering always requires a fair amount of teamwork. The code needs to be understood by designers, developers, other coders, testers, team members and the entire IT team.

Schedule, Quality, Cost, Stakeholder Satisfaction, Performance

A software project manager determines the project specifications, builds the project team, draws up a blueprint for the whole project outlining the scope and criteria of the project, clearly communicates the project goals to the team; allocates budget, an

The most common software sizing methodology has been counting the lines of code written in the application source. Another approach is to do Functional Size Measurement, to express the functionality size as a number by performing Function point analysis.

The major parts to project estimation are effort estimation, cost estimation, resource estimate. In estimation, there are many methods used as best practices in project management such as-Analogous estimation, Parametric estimation, Delphi process, 3 Poin

software configuration management (SCM) is the task of tracking and controlling changes in the software code, part of the larger cross-disciplinary field of configuration management. Whereas change management deals with identification, impact analysis, d

Basecamp, Teamwork Projects, ProofHub, Zoho Projects, Nifty, Trello, JIRA, Asana, Podio, etc.

A feasibility study is a study that takes into account all of the related factors of a project — including economic, technological, legal, and scheduling considerations — to assess the probability of completing the project.

Functional requirements are the specifications explicitly requested by the end-user as essential facilities the system should provide. Non-functional requirements are the quality constraints that the system must satisfy according to the project contract,

Pseudocode is an informal high-level explanation of the operating principle of a computer program. It uses the structural conventions of a normal programming language but is intended for human reading rather than machine reading.

Validation is the process of checking whether the specification captures the user's needs, while verification is the process of checking that the software meets the specification.

Different Types Of Software Testing - Unit Testing, Integration Testing, System Testing, Sanity Testing, Smoke Testing, Interface Testing, Regression Testing, Beta/Acceptance Testing.

Quality control can be described as part of quality management that is focused on fulfilling quality requirements. While quality assurance relates to how a process is performed or how a product is made.

Single Responsibility Principle (SRP), Open/Closed Principle (OCP), Liskov Substitution Principle (LSP), Interface Segregation Principle (ISP), Dependency Inversion Principle (DIP).