Exam Code: 70 483 exam (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Programming in C#
Certification Provider: Microsoft
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Q131. DRAG DROP - (Topic 1)
You are developing a class named ExtensionMethods.
You need to ensure that the ExtensionMethods class implements the IsEmail() method on string objects.
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.)
Answer:
Q132. - (Topic 1)
You are developing an application by using C#. The application includes the following code segment. (Line numbers are included for reference only.)
The DoWork() method must not throw any exceptions when converting the obj object to the IDataContainer interface or when accessing the Data property.
You need to meet the requirements. Which code segment should you insert at line 07?
A. var dataContainer = (IDataContainer)obj;
B. dynamic dataContainer = obj;
C. var dataContainer = obj is IDataContainer;
D. var dataContainer = obj as IDataContainer;
Answer: D
Explanation:
As - The as operator is like a cast operation. However, if the conversion isn't possible, as returns null instead of raising an exception. http://msdn.microsoft.com/en-us/library/cscsdfbt(v=vs.110).aspx
Q133. - (Topic 1)
You are creating a console application named App1.
App1 retrieves data from the Internet by using JavaScript Object Notation (JSON).
You are developing the following code segment (line numbers are included for reference only):
You need to ensure that the code validates the JSON string.
Which code should you insert at line 03?
A. DataContractSerializer serializer = new DataContractSerializer();
B. var serializer = new DataContractSerializer();
C. XmlSerlalizer serializer = new XmlSerlalizer();
D. var serializer = new JavaScriptSerializer();
Answer: D
Explanation: The JavaScriptSerializer Class Provides serialization and deserialization functionality for AJAX-enabled applications.
The JavaScriptSerializer class is used internally by the asynchronous communication layer to serialize and deserialize the data that is passed between the browser and the Web server. You cannot access that instance of the serializer. However, this class exposes a public API. Therefore, you can use the class when you want to work with JavaScript Object Notation (JSON) in managed code.
Q134. - (Topic 2)
You have a class named Customer and a variable named customers.
You need to test whether the customers’ variable is a generic list of Customer objects. Which line of code should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
Explanation:
http://stackoverflow.com/questions/982487/testing-if-object-is-of-generic-type-in-c-sharp
Q135. - (Topic 2)
You are implementing a method named ProcessFile that retrieves data files from web servers and FTP servers. The ProcessFile () method has the following method signature:
Public void ProcessFile(Guid dataFileld, string dataFileUri)
Each time the ProcessFile() method is called, it must retrieve a unique data file and then save the data file to disk.
You need to complete the implementation of the ProcessFile() method. Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
Explanation: * WebRequest.Create Method (Uri)
Initializes a new WebRequest instance for the specified URI scheme.
* Example:
1. To request data from a host server
Create a WebRequest instance by calling Create with the URI of the resource.
C#
WebRequest request = WebRequest.Create("http://www.contoso.com/");
2. Set any property values that you need in the WebRequest. For example, to enable authentication, set the Credentials property to an instance of the NetworkCredential class.
C#
request.Credentials = CredentialCache.DefaultCredentials;
3. To send the request to the server, call GetResponse. The actual type of the returned WebResponse object is determined by the scheme of the requested URI.
C#
WebResponse response = request.GetResponse();
4. To get the stream containing response data sent by the server, use the GetResponseStream method of the WebResponse.
C#
Stream dataStream = response.GetResponseStream ();
Q136. - (Topic 2)
You are developing a C# application. The application includes the following code segment, (Line numbers are included for reference only.)
The application fails at line 17 with the following error message: "An item with the same key has already been added."
You need to resolve the error.
Which code segment should you insert at line 16?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Q137. DRAG DROP - (Topic 2)
You are adding a method to an existing application. The method uses an integer named statusCode as an input parameter and returns the status code as a string.
The method must meet the following requirements:
Return "Error" if the statusCode is 0.
Return "Success" if the statusCode is 1.
Return "Unauthorized" if the statusCode is any value other than 0 or l.
You need to implement the method to meet the requirements.
How should you complete the relevant code? (To answer, drag the appropriate statements to the correct locations in the answer area. Each statement 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.)
Answer:
Q138. - (Topic 2)
You are developing an application that includes a class named Employee and a generic list
of employees. The following code segment declares the list of employees:
List<Employee> employeesList = new List<Employee>();
You populate the employeesList object with several hundred Employee objects.
The application must display the data for five Employee objects at a time.
You need to create a method that will return the correct number of Employee objects.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: B
Q139. - (Topic 2)
You are developing an application.
The application contains the following code segment (line numbers are included for reference only):
When you run the code, you receive the following error message: "Cannot implicitly convert type 'object'' to 'int'. An explicit conversion exists (are you missing a cast?)."
You need to ensure that the code can be compiled.
Which code should you use to replace line 05?
A. var2 = arrayl[0] is int;
B. var2 = ((List<int>)arrayl) [0];
C. var2 = arrayl[0].Equals(typeof(int));
D. var2 = (int) arrayl [0];
Answer: D
Q140. DRAG DROP - (Topic 1)
You have the following class:
You need to implement IEquatable. The Equals method must return true if both ID and Name are set to the identical values. Otherwise, the method must return false. Equals must not throw an exception.
What should you do? (Develop the solution by selecting and ordering the required code snippets. You may not need all of the code snippets.)
Answer: