Online Access Free 70-483 Exam Questions

You are implementing a new method named ProcessData. The ProcessData() method calls a third-party component that performs a long-running operation to retrieve stock information from a web service.
The third-party component uses the IAsyncResult pattern to signal completion of the long-running operation so that the UI can be updated with the new values.
You need to ensure that the calling code handles the long-running operation as a System.Threading.Tasks.Task object to avoid blocking the UI thread.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

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

You have the following C# code. (Line numbers are included for reference only.)

For each of the following statements, select Yes if the statement is true. Otherwise, select False.
NOTE: Each correct selection is worth one point.

Correct Answer:

You are developing a class named Temperature.
You need to ensure that collections of Temperature objects are sortable.
You have the following code:

Which code segments should you include in Target 1, Target 2 and Target 3 to complete the code? (To answer, drag the appropriate code segments to the correct targets 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.)

Correct Answer:

Explanation:
Note:
Target 1:
The role of IComparable is to provide a method of comparing two objects of a particular type. This is necessary if you want to provide any ordering capability for your object.
Incorrect: The role of IComparer is to provide additional comparison mechanisms. For example, you may want to provide ordering of your class on several fields or properties, ascending and descending order on the same field, or both.
Target 2, Target 3:
Example:
// Implement IComparable CompareTo method - provide default sort order.
int IComparable.CompareTo(object obj)
{
car c=(car)obj;
return String.Compare(this.make,c.make);
}
Reference:
https://support.microsoft.com/en-us/kb/320727

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.AssemblyVersionAttribute
• B.AssemblyDelaySignAttribute
• C.AssemblyCompanyAttribute
• D.AssemblyCultureAttribute
• E.AssemblyProductAttribute

You are developing an application that includes the following code segment. (Line numbers are included for reference only.)

The GetCustomers() method must meet the following requirements:
* Connect to a Microsoft SQL Server database.
* Populate Customer objects with data from the database.
* Return an IEnumerable<Customer> collection that contains the populated Customer objects.
You need to meet the requirements.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

• A.Insert the following code segment at line 17:
  while (sqlDataReader.GetValues())
• B.Insert the following code segment at line 17:
  while (sqlDataReader.Read())
• C.Insert the following code segment at line 14:
  sqlConnection.BeginTransaction();
• D.Insert the following code segment at line 17:
  while (sqlDataReader.NextResult())
• E.Insert the following code segment at line 14:
  sqlConnection.Open();