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What is the difference between a NULL pointer and a void pointer
What is the difference between a NULL pointer and a void pointer? A NULL pointer is a pointer of any type whose value is zero. A void pointer is a pointer to an object of an unknown type, and is guaranteed to have enough bits to hold a pointer to any object. A void pointer is not guaranteed to have ...
2007-11-13, 6090👍, 0💬

What are some advantages and disadvantages of Java Sockets
What are some advantages and disadvantages of Java Sockets? Advantages of Java Sockets: Sockets are flexible and sufficient. Efficient socket based programming can be easily implemented for general communications. Sockets cause low network traffic. Unlike HTML forms and CGI scripts that generate and...
2007-11-13, 8979👍, 0💬

What are the seven layers(OSI model) of networking
What are the seven layers(OSI model) of networking? 1.Physical, 2.Data Link, 3.Network, 4.Transport, 5.Session, 6.Presentation and 7.Application Layers.
2007-11-12, 5965👍, 0💬

What is a JavaBean
What is a JavaBean? JavaBeans are reusable software components written in the Java programming language, designed to be manipulated visually by a software develpoment environment, like JBuilder or VisualAge for Java. They are similar to Microsoft’s ActiveX components, but designed to be platform-neu...
2007-11-12, 5840👍, 0💬

What does a socket consists of
What does a socket consists of? The combination of an IP address and a port number is called a socket.
2007-11-11, 6457👍, 0💬

What is the difference between TCP and UDP
What is the difference between TCP and UDP? TCP and UDP are both transport-level protocols. TCP is designed to provide reliable communication across a variety of reliable and unreliable networks and internets. UDP provides a connectionless service for application-level procedures. Thus, UDP is basic...
2007-11-11, 5935👍, 0💬

Name the seven layers of the OSI Model and describe them briefly
Name the seven layers of the OSI Model and describe them briefly Physical Layer - covers the physical interface between devices and the rules by which bits are passed from one to another. Data Link Layer - attempts o make the physical link reliable and provides the means to activate, maintain, and d...
2007-11-11, 5904👍, 0💬

What is multiprogramming
What is multiprogramming? Multiprogramming is a rapid switching of the CPU back and forth between processes.
2007-11-11, 6084👍, 0💬

How does the race condition occur
How does the race condition occur? It occurs when two or more processes are reading or writing some shared data and the final result depends on who runs precisely when.
2007-11-11, 5894👍, 0💬

How can we host a service on two different protocols on a single server
How can we host a service on two different protocols on a single server? Let’s first understand what this question actually means. Let’s say we have made a service and we want to host this service using HTTP as well as TCP. You must be wondering why to ever host services on two different types of pr...
2007-11-04, 6269👍, 0💬

Can you explain duplex contracts in WCF
Can you explain duplex contracts in WCF? In duplex contracts when client initiates an operation the server service provides a reference call back Uri back to the client. So the client initiates a call using the proxy class and when server finishes its work it notifies the client using the callback c...
2007-11-04, 8854👍, 0💬

What is one way operation
What is one way operation? IsOneWay equal to true ensures that the client does not have to wait for the response. So methods marked by IsOneWay to true should always return void. In this the caller does not get anything in return so it is called as one-way communication. In order to understand one w...
2007-11-04, 5369👍, 0💬

Which are the various programming approaches for WCF
Which are the various programming approaches for WCF?
2007-11-04, 9835👍, 0💬

What are different bindings supported by WCF
What are different bindings supported by WCF? WCF includes predefined bindings. They cover most of bindings widely needed in day to day application. But just incase you find that you need to define something custom WCF does not stop you. So let’s try to understand what each binding provides. BasicHt...
2007-11-04, 5448👍, 0💬

What is the difference WCF and Web services?
What is the difference WCF and Web services? Web services can only be invoked by HTTP. While Service or a WCF component can be invoked by any protocol and any transport type. Second web services are not flexible. But Services are flexible. If you make a new version of the service then you need to ju...
2007-11-04, 5813👍, 0💬

What are the major differences between services and Web services
What are the major differences between services and Web services?
2007-11-04, 5867👍, 0💬

what are the advantages of hosting WCF Services in IIS as compared to self hosting
what are the advantages of hosting WCF Services in IIS as compared to self hosting? There are two main advantages of using IIS over self hosting: Automatic activation IIS provides automatic activation that means the service is not necessary to be running in advance. When any message is received by t...
2007-11-04, 7378👍, 0💬

How do we host a WCF service in IIS
How do we host a WCF service in IIS? Note: - The best to know how to host a WCF in IIS is by doing a small sample. So what we will do is host the same GetCost sample which was self hosted in the previous question. First thing you will need is to create the SVC file which exposes the service class. S...
2007-11-04, 14564👍, 0💬

What are the various ways of hosting a WCF service
What are the various ways of hosting a WCF service? There are three major ways to host a WCF service: Self hosting the service in his own application domain. This we have already covered in the first section. The service comes in to existence when you create the object of ServiceHost class and the s...
2007-11-04, 5628👍, 0💬

what is a service contract, operation contract and Data Contract - part 2
what is a service contract, operation contract and Data Contract? - part 1 In the below sample we have marked the structure productdata to be serialized. Figure 15.5:- The Service class As data contract are all about serialization you need to import System.Runtime.Serialization name space. In the ne...
2007-11-04, 8674👍, 0💬

what is a service contract, operation contract and Data Contract - part 1
what is a service contract, operation contract and Data Contract? - part 1 In this example we will make simple service which displays the total cost of the complete product group. In simple words this service will take three parameters per product cost, number of products and the product name. In re...
2007-11-04, 5709👍, 0💬

what is a service class
what is a service class?
2007-11-04, 5140👍, 0💬

Can you explain how End points, Contract, Address and Bindings are done in WCF
Can you explain how End points, Contract, Address and Bindings are done in WCF?
2007-11-04, 5906👍, 0💬

What are the main components of WCF
What are the main components of WCF? We need to define three main components in WCF: Service class. Hosting environment End pointWe need to define three main components in WCF:- Service class. Hosting environment End point
2007-11-04, 5355👍, 0💬

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