You are developing a class library. Portions of your code ne

You are developing a Windows Comunication Foundation (WCF) service that is used to check the status of orders placed by customers.The following code segment is part of your service.(Line numbers are included for reference only.)01 [ServiceContract]02 public interface IStatus03 {04 [OperationContract]05 int GetOrderStatus(string orderNumber);06 }0708 class OrderService : IStatus09 {10 public int GetOrderStatus(string orderNumber)11 {12 ...13 }14 }1516 class Program17 {18 static void Main(string[] args)19 {202122 host.Open();23 ...24 }25 }You need to ensure that the service always listens at net.pipe://SupplyChainServer/Pipe.What should you do?（）

A.

B.

C.

D.

You are developing a new version of an existing message contract named CustomerDetailsVersion1. The new version of the message contract must add a Department field of type String to the SOAP header.You create a new class named CustomerDetailsVersion2 that inherits from CustomerDetailsVersion1. You need to ensure that all client applications can consume the service.Which code segment should you use?（）

A.

B.

C.

D.

Taking Notes in Class Taking good notes is a three-stage process _____________ (1) there are certain things you should do before class, during class, and after class. Before class. Review your notes from the previous class session before you come to class. This will help you remember what _____________ (2) and get you ready to understand new information your teacher provides. Also, complete all assigned readings before you come to class. During class. Keep your attention _____________ (3) what your teacher is saying. Listen for “signal statements” that tell you that what your teacher is about to say is important to write in your notes. Write quickly by writing ____________ (4) words such as “med” for “medicine”, using symbols such as “%” for “percent”, and writing short sentences. After class. Rewrite your notes to make them more complete by changing abbreviated words into whole words. Make your notes __________ (5) accurate by answering any questions you had when writing your notes in class. You may ask your teacher or other students for help.

1.

A、in that

B、in which

C、where

D、which

2.

A、was covered

B、is covered

C、covers

D、are covering

3.

A、focusing on

B、focus on

C、is focused on

D、focused on

4.

A、short

B、abbreviated

C、other

D、several

5.

A、very

B、quite

C、more

D、most

You are developing a Windows Communication Foundation (WCF) service.You enable message logging, trace listeners, activity propagation, and tracing on the trace sources.You have the following code segment in the client application. (Line numbers are included for reference only.)01 Guid multiCallActivityId = Guid.NewGuid();02 TraceSource ts = new TraceSource("Multicall");03 Trace.CorrelationManager.ActivityId = multiCallActivityId;04You encounter errors when your client application consumes the service.You need to ensure that your client application can correlate tracing information with the service.Which code segment should you add at line 04?（）

A.

B.

C.

D.

You are developing a Windows Communication Foundation (WCF) service that is hosted by a Windows Forms Application.The ServiceHost instance is created in the Form Constructor.You need to ensure that the service is not blocked while the UI thread is busy.What should you do?（）

A. Decorate the service implementation class with the following line of code [ServiceBehavior(UseSyncronizationContext = false)]

B. Decorate the service implementation class with the following line of code [ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Multiple)]

C. Call the Invoke method of the form and supply a delegate.

D. Call the BeginInvoke method of the form and supply a delegate.

You are creating a class that performs complex financial calculations.The class contains a method named GetCurrentRate that retrieves the current interest rate and a variable named currRate that stores the current interest rate.You write serialized representations of the class.You need to write a code segment that updates the currRate variable with the current interest ratewhen an instance of the class is deserialized.Which code segment should you use?（）

A.

B.

C.

D.