Black Knight Technical Lead Interview Questions and Answers

To move from one Entity Framework version to another, update the NuGet package and make necessary code changes.

• Update the NuGet package to the desired version

• Make necessary code changes to accommodate any breaking changes

• Test thoroughly to ensure the application still works as expected

Choose .Net Core for cross-platform and cloud-based applications, .Net Framework for Windows-only applications.

• Consider the target platform and deployment environment

• Choose .Net Core for cross-platform and cloud-based applications

• Choose .Net Framework for Windows-only applications

• Check for compatibility with existing libraries and frameworks

• Consider performance and scalability requirements

Creating a RESTful service without using Asp.Net Web Api template.

• Use a lightweight framework like Flask or Express

• Define routes and HTTP methods for each endpoint

• Serialize data to JSON format

• Handle errors and exceptions

• Test the service using tools like Postman or curl

There are two types of routings in Asp.Net MVC: convention-based routing and attribute routing.

• Convention-based routing uses default routing rules to map URLs to controller actions.

• Attribute routing allows developers to define custom routes using attributes on controller actions or at the controller level.

• Both types of routing can be used together in the same application.

• Convention-based routing is the default routing mechanism in Asp.Net MVC.

• Attribute routing is more flexibl...read more

WCF is a framework for building distributed systems while Asp.Net Web Api is for building HTTP services.

• WCF supports multiple protocols like TCP, HTTP, Named Pipes, etc. while Web Api only supports HTTP.

• WCF has more configuration options and is more flexible than Web Api.

• Web Api is more lightweight and easier to use for building RESTful services.

• WCF is more suitable for building enterprise-level applications with complex requirements.

• WCF has built-in support for security, tra...read more

Performance tuning in SQL involves optimizing queries, indexes, and server settings to improve database performance.

• Identify slow queries using profiling tools

• Optimize queries by rewriting or adding indexes

• Adjust server settings such as memory allocation and disk usage

• Consider partitioning large tables

• Regularly monitor and analyze performance metrics

Routing in Asp.Net MVC maps incoming requests to appropriate controller actions.

• Routing is configured in RouteConfig.cs file.

• Routes are defined using MapRoute method.

• Routes can have placeholders for dynamic values.

• Routes can have constraints to restrict the values of placeholders.

• Routes can be named for easy reference.

• Default route is defined as {controller}/{action}/{id}.

• Attribute routing can also be used to define routes at controller or action level.

Difference between drop, truncate and delete.

• DROP command removes a table from the database

• TRUNCATE command removes all rows from a table

• DELETE command removes specific rows from a table