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Vendor: Microsoft
Exam Code: 70-483
Exam Name: Microsoft Programming in C#
Version: 14.81

You are creating an application that manages information about your company’s products.
The application includes a class named Product and a method named Save.
The Save() method must be strongly typed. It must allow only types inherited from the Product class that use a constructor that accepts no parameters.
You need to implement the Save() method.
Which code segment should you use?

A.    Option A
B.    Option B
C.    Option C
D.    Option D

Answer: D

You are implementing a new method named ProcessData. The ProcessData() method calls a third-party component that performs a long-running operation.
The third-party component uses the IAsyncResult pattern to signal completion of the long- running operation.
You need to ensure that the calling code handles the long-running operation as a System.Threading.Tasks.Task object.
Which two actions should you perform?
(Each correct answer presents part of the solution. Choose two.)

A.    Call the component by using the TaskFactory.FromAsync() method.
B.    Create a TaskCompletionSource<T> object.
C.    Apply the async modifier to the method signature.
D.    Apply the following attribute to the method signature:

Answer: AB
A: TaskFactory.FromAsync Method
Creates a Task that represents a pair of begin and end methods that conform to the Asynchronous Programming Model pattern. Overloaded.
TaskFactory.FromAsync Method (IAsyncResult, Action<IAsyncResult>) Creates a Task that executes an end method action when a specified IAsyncResult completes.
B: In many scenarios, it is useful to enable a Task<TResult> to represent an external asynchronous operation. TaskCompletionSource<TResult> is provided for this purpose. It enables the creation of a task that can be handed out to consumers, and those consumers can use the members of the task as they would any other. However, unlike most tasks, the state of a task created by a TaskCompletionSource is controlled explicitly by the methods on TaskCompletionSource. This enables the completion of the external asynchronous operation to be propagated to the underlying Task. The separation also ensures that consumers are not able to transition the state without access to the corresponding TaskCompletionSource.
* System.Threading.Tasks.Task
Represents an asynchronous operation.

Drag and Drop Question
You are developing an application that will write data to a file. The application includes the following code segment. (Line numbers are included for reference only.)
You need to ensure that the WriteData() method will write data to a file.
Which four code segments should you insert in sequence at line 03?
(To answer, move the appropriate code segments from the list of code segments to the answer area and arrange them in the correct order.)




Hotspot Question
You define a class by using the following code:


To answer, complete each statement according to the information presented in the code.




Drag and Drop Question
You are developing an application that will populate an extensive XML tree from a Microsoft SQL Server 2008 R2 database table named Contacts.
You are creating the XML tree. The solution must meet the following requirements:

– Minimize memory requirements.
– Maximize data processing speed.

You open the database connection.
You need to create the XML tree.
How should you complete the relevant code?
(To answer, drag the appropriate code segments to the correct locations in the answer area. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)




Drag and Drop Question
You create an assembly named Assembly1.dll.
You need to ensure that Assembly1.dll can be deployed to the global assembly cache (GAC).
Which commands should you run?
(To answer, drag the appropriate programs to the correct locations. Each program may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)




You are developing an application that will read data from a text file and display the file contents. You need to read data from the file, display it, and correctly release the file resources. Which code segment should you use?


A.    Option A
B.    Option B
C.    Option C
D.    Option D

Answer: A

You have an application that will send confidential information to a Web server.
You need to ensure that the data is encrypted when it is sent across the network.
Which class should you use?

A.    CryptoStream
B.    AuthenticatedStream
C.    PipeStream
D.    NegotiateStream

Answer: A

You are developing an application that will be deployed to multiple computers.
You set the assembly name.
You need to create a unique identity for the application assembly.
Which two assembly identity attributes should you include in the source code?
(Each correct answer presents part of the solution. Choose two.)

A.    AssemblyTitleAttribute
B.    AssemblyCultureAttribute
C.    AssemblyVersionAttribute
D.    AssemblyKeyNameAttribute
E.    AssemblyFileVersion

Answer: BC
The AssemblyName object contains information about an assembly, which you can use to bind to that assembly. An assembly’s identity consists of the following:
Simple name.
Version number.
Cryptographic key pair.
Supported culture.
B: AssemblyCultureAttribute
Specifies which culture the assembly supports.
The attribute is used by compilers to distinguish between a main assembly and a satellite assembly. A main assembly contains code and the neutral culture’s resources. A satellite assembly contains only resources for a particular culture, as in [assembly:AssemblyCultureAttribute(“de”)]
C: AssemblyVersionAttribute
Specifies the version of the assembly being attributed. The assembly version number is part of an assembly’s identity and plays a key part in binding to the assembly and in version policy.

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