WCF Interview Questions and Answers. Question 1 What is WCF Answer WCF is a platform for building distributed businesses and deploying services among various endpoints in Windows. WCF was initially called Indigo and we can build service oriented applications and provide interoperability. Code, Example for Menu driven Bank Application Project in C Programming. Have you found an error in a Packt Publishing book Submit your errata through the form or view any previous errata submissions. Releasing-HTML5-Games-for-Windows-8-.jpg' alt='Wcf Books For Beginners' title='Wcf Books For Beginners' />Setup and Configuration of the Workflow for Microsoft Dynamics AX 2009 Administration written by Marco Carvalho one of the many articles from Packt Publishing. TEXTBOOK STEPSISTER DEVOTION THE COMPLETE SERIES PDF EBOOKS Stepsister Devotion The Complete Series In undergoing this life, many people always try to do and get the. In this article you will learn about WCF Interview Questions and Answers. Good books gives you a quick and handy insight into a technology. You should choose books that are usually written by professionals who recommend best practices and. NET Interview Questions and Answers for Beginners consists of the most frequently asked questions in. NET. This list of 100 questions and answers gauge your. Learn SharePoint 2016 blogs, SharePoint 2013 articles, office 365 SharePoint online tutorials, SharePoint development training from MVP. Taking advantage of WebHooks is something that many developers want to achieve, but many struggle to find a starting point. In ASP. NET WebHooks Succinctly, Gaurav. WCF or Windows Communication Foundation is a programming model to create service oriented applications. It is used to create and deploy the service that is accessible to lots of different clients. It provides an environment where you can create a service which can be accessible to Windows clients as well as Linux clients or any others. It provides more features compared to web services. WCF is a Microsoft technology to create service oriented application. Before the WCF, the Web Service was used to create services but that type of service is only accessible to Windows client hosted on HTTP protocol. But WCF services are accessible with different protocols like http, tcp, msmq, etc. A few sample scenarios include For more details visit the following link Question 2 Explain WCF Architecture and also explain its Fundamentals Answer. Windows Communication Foundation WCF is a framework for building service oriented applications by which we can send asynchronous messagedata from one service endpoint to another service endpoint. WCF is a runtime and a set of APIs for creating systems that sends messages between services and clients. The same infrastructure and APIs are used to create applications that communicate with other applications on the same computer system or on a system that resides in another company and is accessed over the Internet. The WCF fundamentals are as follows Unification. COM Services. Web Services. NET Remoting. Microsoft Message Queuing. Interoperability. Service Orientation. WCF Architecture. There are four major layers that provide developers with a new service oriented programming model. The WCF architecture consists of the following layers. For more details visit following link Question 3 Why Should We Use WCF Service Answer. Windows Communication Foundation WCF is a framework for building service oriented applications. Most of WCF functionality is included in a single assembly called System. Service. Model. dll, located in the System. Service. Model namespace. Why WCFA web service to exchange messages in XML format using HTTP protocol for interoperability. A remoting service to exchange messages in binary format using TCP protocol for performance. A secure service to process business transactions. A service that supplies current data to others, such as a traffic report or other monitoring service. A chat service that allows two people to communicate or exchange data in real time. A dashboard application that polls one or more services for data and presents it in a logical presentation. A Silverlight application to poll a service for the latest data feeds. For more details visit the following link Question 4 What are the features and advantage of WCF Answer. Features of WCFWindows Communication Foundation WCF is a secure, reliable, and scalable messaging platform for the. NET Framework 3. 0,Service Orientation. Interoperability. Multiple Message Patterns. Ralink Rt2500 Wireless Pci Driver. Service Metadata. Data Contracts. Security. Multiple Transports and Encodings. Reliable and Queued Messages. Durable Messages. Transactions. AJAX and REST Support. Extensibility. Advantages of WCFService Oriented. Location Independent. Language Independent. Platform Independent. Support Multiple operation. WCF can maintain transaction like COM Does. It can maintain state. It can control concurrency. It can be hosted on IIS, WAS, Self hosting, Windows services. It has AJAX Integration and JSON Java. Script object notation support. WCF can be configured to work independently of SOAP and use RSS instead. WCF is one of the fastest communication technologies and offers excellent performance compared to other Microsoft specifications. To improve communication, transmission speed needs to be optimized. This is done by transmitting binary coded XML data instead of plain text to decrease latency. Object life cycle management and distributed transaction management are applicable to any application developed using WCF. For more details visit the following link Question 5 What is the difference between WCF and Web services Answer WCFWindows Communication Foundation WCF is a framework for building service oriented applications. Using WCF, you can send data as asynchronous messages from one service endpoint to another. Web Services A Web Service is programmable application logic accessible via standard web protocols. One of these web protocols is the Simple Object Access Protocol SOAP. SOAP is a W3. C submitted note as of May 2. XML for data description and HTTP for transport to encode and transmit application data. Features. Web Service. WCFHosting It can be hosted in IISIt can be hosted in IIS, windows activation service, Self hosting, Windows service. Programming Web. Service attribute has to be added to the classService. Contraact attribute has to be added to the class. Model Web. Method attribute represents the method exposed to clientOperation. Contract attribute represents the method exposed to client. Operation One way, Request Response are the different operations supported in web service. One Way, Request Response, Duplex are different type of operations supported in WCFXML System. Xml. serialization name space is used for serialization. System. Runtime. Serialization namespace is used for serialization. Encoding XML 1. 0, MTOMMessage Transmission Optimization Mechanism, DIME, Custom. XML 1. 0, MTOM, Binary, Custom. Transports Can be accessed through HTTP, TCP, Custom. Can be accessed through HTTP, TCP, Named pipes, MSMQ,P2. P, Custom. Protocols Security Security, Reliable messaging, Transactions. For more details visit the following link Question 6 Explain what is SOAAre web services SOA Answer SOASOA stands for service oriented architecture. Service Oriented Architecture is an architectural approach in software development where the application is organized as Services. Services are a group of methods that contain the business logic to connect a DB or other services. For instance you go to a hotel and order food. Your order first goes to the counter and then it goes to the kitchen where the food is prepared and finally the waiter serves the food. Some important characteristics of Service Oriented Architecture. SOA services should be independent of other services. Altering a service should not affect the client calling the service. Services should be self contained. Services should be able to define themselves in the Web Service Description Language WSDL. Services should be able to describe what they do. It should be able to tell the client what all of the operations it does, what are all the data types it uses and what kind of value it will return. SOA Overview A Service Oriented Architecture is based on four key abstractions. An Application Front End. A Service. A Service Repository. A Service Bus. Application Front End The application front end is decoupled from the services. Each service has a contract that defines what it will do and one or more interfaces to implement the contract. A Service It has the methods with the defined contracts and the implementation of the business logic to connect the DB or other service.