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

1. You create a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. The WCF service accepts service requests from different partner applications. One of the partner applications occasionally receives faults. You need to identify why the service is generating faults. You must accomplish this goal without interrupting the service. What should you do?

A) Add the following code segment to the application configuration file.
<system.diagnostics>
<switches>
<add name="WcfFaultTrace" value="Error" />
</ switches>
</system.diagnostics>
B) Configure the Service Tracing options in the application configuration file. Analyze the
trace results by using the SvcTraceViewer.exe program.
C) Connect remotely to the WCF service by using a debugger. Place breakpoints in the
exception handling code segment.
D) Run SvcTraceViewer.exe /register on the WCF server.

2. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service is hosted in a managed application.
You need to perform the following tasks:
Publish the service on the following address: net.tcp://localhost:8080/ExamService
Publish the metadata on the following address:
http://localhost:8081/ExamService/metadata?wsdl
Which code fragment should you use?

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

3. You are creating a distributed application by using Microsoft .NET Framework 3.5. You use Windows Communication Foundation (WCF) to create the application.
The client application is used in Company A, and the service application is used in Company B.
Company A and company B have security token services named STS_A and
STS_B respectively.
You need to authenticate the client application by using federated security.
Which combination of bindings should you use?

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

4. You create a distributed application by using Microsoft .NET Framework 3.5. You use Windows Communication Foundation to create the application.
You pass the client credentials to the service that runs on two Web servers named IIS1 and IIS2. The service uses the credentials to query data from a remote Microsoft SQL Server 2005 database named DB1.
The client applications can retrieve data from the service when they connect to IIS1. When the client applications attempt to retrieve data from the service by connecting to IIS2, they receive the following error message:
Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.
You need to ensure that both IIS1 and IIS2 can query data from DB1.
What should you do?

A) Configure IIS2 for constrained delegation to DB1.
B) Change the SQL connection string on IIS2 from "Data Source=DBl; Initial Catalog=db;Integrated Security=True" to "Data Source=DBl;Initial Catalog=db;Integrated Security=SSPI".
C) Execute the following command on a domain controller. setspn -A http/iis2.example.com:80 DOMAIN\iis2$
D) Configure DB1 for full delegation.

5. 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.)

You need to ensure that the application prints the title of the feed.
Which code segment should you insert at the line 02?

A) Dim feed As SyndicationFeed = New SyndicationFeed()
feed.BaseUri = address
B) Dim feed As SyndicationFeed = SyndicationFeed.Load(address)
C) Dim item As Syndicationltem = SyndicationItem.Load(address)
Dim feed As New SyndicationFeed()
feed.Items = New Syndicationltem() {item}
D) Dim item As New SyndicationItem()
item.BaseUri = address
Dim feed As New SyndicationFeed()
feed.Items = New Syndicationltem() {item}

Solutions: