Online Access Free 70-483 Practice Test

You are developing an application in C#.
You need to create an anonymous method.
You write the following code segment.

How should you complete the code? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Correct Answer:

Explanation:
Target 1: delegate
Target 2: void
Target 3: delegate

You are developing a method named CreateCounters that will create performance counters for an application.
The method includes the following code. (Line numbers are included for reference only.)

You need to ensure that Counter1 is available for use in Windows Performance Monitor (PerfMon).
Which code segment should you insert at line 16?

• A.CounterType = PerformanccCounterType.RawBase
• B.CounterType = PerformanceCounterType.AverageBase
• C.CounterType = PerformanceCounterType.SampleBase
• D.CounterType = PerformanceCounterType.CounterMultiBase

You are developing a C# application named Application1 by using Microsoft Visual Studio 2017.
You plan to compare the memory usage between different builds of Application1.
You need to record the memory usage of each build.
What should you use from Visual Studio?

• A.Performance Wizard from Performance Profiler
• B.IntelliTrace
• C.Code Analysis
• D.Memory Usage from Performance Profiler

You are developing an application that includes a Windows Communication Foundation (WCF) service. The service includes a custom TraceSource object named ts and a method named DoWork. The application must meet the following requirements:
* Collect trace information when the DoWork() method executes.
* Group all traces for a single execution of the DoWork() method as an activity that can be viewed in the WCF Service Trace Viewer Tool.
You need to ensure that the application meets the requirements.
How should you complete the relevant code? (To answer, select the correct code segment from each drop-down list in the answer area.)

Correct Answer:

Explanation:
Activities are logical unit of processing. You can create one activity for each major processing unit in which you want traces to be grouped together. For example, you can create one activity for each request to the service. To do so, perform the following steps.
Save the activity ID in scope.
Create a new activity ID.
Transfer from the activity in scope to the new one, set the new activity in scope and emit a start trace for that activity.
The following code demonstrates how to do this.
Guid oldID = Trace.CorrelationManager.ActivityId;
Guid traceID = Guid.NewGuid();
ts.TraceTransfer(0, "transfer", traceID);
Trace.CorrelationManager.ActivityId = traceID; // Trace is static
ts.TraceEvent(TraceEventType.Start, 0, "Add request");
Reference:
https://msdn.microsoft.com/en-us/library/aa738759(v=vs.110).aspx

You have the following code.

You need to remove all of the data from the myData list.
Which code should you use?

• A.foreach(string currentString in myData) myData.Remove(currentString);
• B.while (myData.Count ! = 0)
  myData.RemoveAt(0);
• C.for (int i = 0; i <= myData.Count; i++)
  myData.RemoveAt(0);
• D.for (int i = 0; i <= myData.Count; i++)
  myData.RemoveAt(i);