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What is the main disadvantage of using IIS to host a service?

Posted By :Sasi Prabhu     Posted Date :November 30, 2011    Points :40   Category :WCF 
Using IIS to host your services means that you will not be able to support non-HTTP protocols such as TCP, named pipes, and MSMQ. You will have access to the many built-in features available with IIS such as process recycling and messagebased activation.


You can also find related Interview Question to What is the main disadvantage of using IIS to host a service?  below: 

What is the main disadvantage of using IIS to host a service?

  
Using IIS to host your services means that you will not be able to support non-HTTP protocols such as TCP, named pipes, and MSMQ. You will have access to the many built-in features available with IIS such as process recycling and messagebased
activation. (More...)

What are the different platforms where we can host WCF service ?

  
WCF Services can be hosted on following platforms

1. WAS(Windows Activation Service)

2. Self Hosting

3. IIS
(More...)

What is service host factory in WCF?

  
1. Service host factory is the mechanism by which we can create the instances of service host dynamically as the request comes in.

2. This is useful when we need to implement the event handlers for opening and closing the service.

3. WCF provides ServiceFactory class for this purpose.
(More...)

Disadvantage in File Processing System?

  
1.Data redundancy & inconsistency.
2.Difficult in accessing data.
3.Data isolation.
4.Data integrity.
5.Concurrent access is not possible.
6.Security Problems. (More...)

Where is window Service Entries located in the system

  
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services (More...)

Disadvantage of Cursor ?

  
Cursor plays there row quite nicely but although there are some disadvantage of Cursor .Because cursor doing roundtrip it will make network line busy and also make time consuming methods. First of all select query gernate output and after that cursor goes one by one so roundtrip happen.


Another disadvange of cursor are ther are too costly because they require lot of resources and temporary storage so network is quite busy. (More...)

What is the Transport Protocol you use to call a Web Service ?

  
SOAP (Simple Object Access Protocol) is the preferred protocol. (More...)

What is SQL Server Service broker?

  
Service Broker is a unique feature in Microsoft SQL Server 2005 which is used to by internal or external processes to send and receive guaranteed, asynchronous messages by using extensions to Transact-SQL Data Manipulation Language (DML).

It's a platform for building a new class of loosely coupled services for database applications. Service Broker not only brings asynchronous, queued messaging to database applications but significantly expands the state of the art for reliable messaging.

The key components of SQL Server Service broker are
.Queue stores the messages for a particular service.
.Dialog is a conversation between two services.
.Conversation group is a group of related conversations. Every conversation belongs to exactly one conversation group.
.Activation specifies a stored procedure that will handle messages destined for a particular service. (More...)

What are the essential components of SQL Server Service broker?

  
Queues
Service Broker uses queues to provide loose coupling between the message sender and the message receiver. The sender can put a message in a queue and then continue on with the application, relying on Service Broker to ensure that the message reaches its destination. Queues permit a lot of scheduling flexibility.

Dialogs
Dialogs are bidirectional streams of messages between two endpoints. All messages in a dialog are ordered, and dialog messages are always delivered in the order they are sent. The order is maintained across transactions, across input threads, across output threads, and across crashes and restarts.

Conversation Groups
It's a way of grouping all the dialogs that are used for a particular task. All the dialogs associated with processing a particular order would be grouped into a single conversation group. The conversation group is implemented as a conversation group identifier, which is included with all messages in all dialogs contained in the conversation group. When a message is received from any of the dialogs in a conversation group, the conversation group is locked with a lock that is held by the receiving transaction. For the duration of the transaction, only the thread that holds the lock can receive messages from any of the dialogs in the conversation group. This makes our order entry application much easier to write because even though we use many threads for scalability, any particular order is only processed on one thread at a time. This means we don't have to make our application resilient to problems that are caused by the simultaneous processing of a single order on multiple threads.

Activation
You use the activation feature of Service Broker to specify a stored procedure that will handle messages destined for a particular service. When messages arrive for a service, Service Broker checks whether there is a stored procedure running that can process the messages. If there isn't a running message-processing stored procedure, Service Broker starts one. The stored procedure then processes messages until the queue is empty, after which it terminates. Moreover, if Service Broker determines that messages are arriving faster than the stored procedure can process them, it starts additional instances of the stored procedure until enough are running to keep up with the incoming messages (or until the configured maximum number is reached). This ensures that the right number of resources for processing incoming messages are always available. (More...)

What is the main purpose of having Conversation Group?

  
It's a way of grouping all the dialogs that are used for a particular task. All the dialogs associated with processing a particular order would be grouped into a single conversation group. The conversation group is implemented as a conversation group identifier, which is included with all messages in all dialogs contained in the conversation group. When a message is received from any of the dialogs in a conversation group, the conversation group is locked with a lock that is held by the receiving transaction. For the duration of the transaction, only the thread that holds the lock can receive messages from any of the dialogs in the conversation group. This makes our order entry application much easier to write because even though we use many threads for scalability, any particular order is only processed on one thread at a time. This means we don't have to make our application resilient to problems that are caused by the simultaneous processing of a single order on multiple threads. (More...)

Can a .NET web application consume Java web service?

  
Yes Offcourse.Actually Webservices are independent to language. it depends on WSDL and SOAP. so any one can develope the Webservices anddisclose the wsdl and users can consume the webservices.wsdl and soap both are xml based.. and all languages having xml parsing
capability and access to http protocol will be able to work with Webservices. (More...)

What is the Main Difference between ASP and ASP.NET?

  
ASP Contains Scripts which are not complied where as in asp.net the code is compiled (More...)

What are the main benefits of Office SharePoint Server 2007?

  
Office SharePoint Server 2007 provides a single integrated platform to manage intranet, extranet,and Internet applications across the enterprise.

* Business users gain greater control over the storage, security, distribution, and management of their electronic content, with tools that are easy to use and tightly integrated into familiar,everyday applications.

* Organizations can accelerate shared business processes with customers and partners across organizational boundaries using InfoPath Forms Services-driven solutions.

* Information workers can find information and people efficiently and easily through the-facilitated information-sharing functionality and simplified content publishing. In addition, access to back-end data is achieved easily through a browser, and views into this data can be personalized.

* Administrators have powerful tools at their fingertips that ease deployment, management, and system administration, so they can spend more time on strategic tasks.

* Developers have a rich platform to build a new class of applications, called Office Business Applications, that combine powerful developer functionality with the flexibility and ease of deployment of Office SharePoint Server 2007. Through the use of out-of-the-box application services, developers can build richer applications with less code. (More...)

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