August 08, 2011

Dot net certification Books, Dump, study Material for 3.5 and 4.0

Books are the best practice material for the preparation for .net certification, currently only 3.5 and 4.0 certification are valid. 2.0 has expired in June-2011,

if you are already 3.5 then you must give upgrade exams. if you are new then choose only 4.0 certification , because 3.5 will expire next year. as new framework is on the way.

Books for .net Certification: 


4.0 Exams
Exam name : 70-511


MCTS Self-Paced Training Kit (Exam 70-511): Windows® Application Development with Microsoft® .NET Framework 4

Exam name : 70-515

MCTS Self-Paced Training Kit (Exam 70-515): Web Applications Development with Microsoft® .NET Framework 4

Exam 70-513 
Windows Communication Foundation Development with Microsoft .NET Framework 4

Exam name :Exam 70-516


MCTS Self-Paced Training Kit (Exam 70-516): Accessing Data with Microsoft® .NET Framework 4




Exam 70-506
Silverlight 4, Development


MCPD:


Exam:70-518: PRO: Designing and Developing Windows Applications Using Microsoft .NET Framework 4

Exam 70-519: PRO: Designing and Developing Web Applications Using Microsoft .NET Framework 4


Exam 70-583: PRO: Designing and Developing Windows Azure Applications

An existing connection was forcibly closed by the remote host in .net app

Sometime "An existing connection was forcibly closed by the remote host" occurs in web app to the user, its very strange issue because all module were working yesterday they suddenly stopped working.

Resolution:

1) Reset the IIS, but it will affect all the application on IIS , if multiple sites are hosted. if only single site then open the command prompt with admin rights and type IISReset and enter.

or

2) Restart the default/Required WebSite

3)  Recycle the Application pools

4) Restart any dependent windows service.

if any comment/issue please comment.

August 01, 2011

The server has rejected the client credentials in WCF


"The server has rejected the client credentials"

i have a WCF serviec which is running on my localhost on 9876 port.

i was using nettcp protocol for my WCF windows service, and in client(from which you are hitting the service, say another website or another web service)it was having following entry in config file

<client>

<endpoint address="net.tcp://Something:9876/RajService"

 binding="netTcpBinding" bindingConfiguration="TCPBinding_abc"

 contract="RService.IR" name="RS" />

</client>

the problem here is instead of localhost (or where my service is actually pointing) 

i was using "Something" and "Something" do not have any entry in the host file.

i changed it to localhost:9876 and this error was resolved.