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Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation Sample Questions:

1. You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You write the following code segment. (Line numbers are included for reference only.)
01 <SetviceContract(SessionMode:=SessionMode.Required)> _
02 Public Interface lOrderManager 04 Sub CloseOrder()
05 End Interface
You need to decorate the operation as the method that closes the current session.
Which code segment should you insert at line 03?

A) <OperationContract()> _
<OperationBehavior(_
ReleaselnstanceMode:=ReleaselnstanceMode.AfterCall)>_
B) <OperationContract(lsTerminating:=False)> _
<OperationBehavior( _
ReleaselnstanceMode:=ReleaselnstanceMode.AfterCall>
C) <OperationContract(lslnitiating:=False)> _
D) <OperationContract(lsTerminating:=True)> _

2. You are replacing an ASMX Web service with a Windows Communication Foundation service by using Microsoft .NET Framework 3.5, The ASMX Web service has a number of existing clients, which you cannot recompile and redeploy. You need to maintain backward compatibility with the existing clients. Which code fragment should you use?

A) Option A
B) Option D
C) Option C
D) Option B
E) Option E

3. You are creating a Windows Communication Foundation application by using Microsoft .NET Framework 3.5. The application must consume an ATOM 1.0 feed published at http://localhost:8000/BlogService/GetBlog.
You write the following code segment. (Line numbers are included for reference only.)
01 Uri address = new 02 Uri("http://localhost:8000/BlogService/GetBlog");
04 Console.WriteLine(feed.Title.Text);
You need to ensure that the application prints the title of the feed.
Which code segment should you insert at the line 03?

A) SyndicationFeed feed = new SyndicationFeed0;feed.BaseUri = address;
B) Syndicationltem item = Syndicationltem.Load(address);
SyndicationFeed feed = new SyndicationFeed();
feed. Items = new Syndicationltem[] { item };
C) SyndicationFeed feed = SyndicationFeed.Load(address);
D) Syndicationltem item = new Syndicationltem();
item.BaseUri = address;
SyndicationFeed feed = new SyndicationFeed();
feed. Items = new Syndicationltem[] { item };

4. You are creating a Windows Communication Foundation service by using Microsoft .NET
Framework 3.5.
You need to expose two different service endpoints that have the same address.
Which configuration setting should you use?

A) Option A
B) Option D
C) Option C
D) Option B

5. You create a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. Client applications that run on different platforms access the WCF service.
These applications transmit confidential data to the WCF service. You write the following binding configuration.
....
<binding name="TransportSecurity" >
<security mode="Transport" />
</binding>
...
You need to configure the service for optimum interoperability and optimum security.
Which code fragment should you use?

A) Option A
B) Option D
C) Option C
D) Option B

Solutions: