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

1. You create a Windows Communication Foundation (WCF) application by using Microsoft .NET Framework 3.5. The desktop client calls the WCF service to query its status. The call can take up to 10 seconds to complete.
The client application must remain responsive when querying the service. You need to generate the required proxy.
What should you do?

A) Execute the svcutil myServiceHost.exe /serviceName:MyWCF command.
B) Clear the Generate asynchronous operation check box in the Add Service Reference Settings dialog box.
C) Execute the svcutil http: //localhost:8000/MyWCF /async command.
D) Execute the svcutil /validate /serviceName:MyWCF myServiceHost.exe command.

2. You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5. The application exposes a Windows Communication Foundation (WCF) service. The service will be consumed by a client-side code that runs in the Web pages of an ASP.NET AJAX Web application. You need to ensure that data serialization between the service and the application incurs minimum latency.
Which data format should you use?

A) Extensible Markup Language
B) JavaScript Object Notation
C) Binary
D) Really Simple Syndication 2.0

3. You create a Windows Communication Foundation (WCF) service by using Microsoft .NET framework 3.5. You write the following code segment for a service contract.

You need to ensure that the WCF service meets the following requirements:
Which method implementation should you use?

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

4. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You create the following service contract.

You need to ensure that the DoSomething operation is executed by a single thread at a time.
What are two possible service implementations you should use to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

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

5. Your company has a set of e-commerce services that were created by using Microsoft .NET Framework 3.5. The Windows Communication Foundation model was used to create the services.
The services include a catalog and a shopping cart that are deployed to the same physical server. The catalog is a stateless, single-instance service. The shopping cart is a reentrant, per-session service.
The catalog service contains the following code fragment.

The shopping cart service contains the following code fragment.

During peak hours, the number of simultaneous catalog requests increase. This prevents customers from updating their shopping carts. You need to ensure that the customers can update their shopping carts even during peak catalog request traffic.
Which set of code fragments should you use to replace the existing code fragments?

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

Solutions: