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Code d'Examen: 070-504
Nom d'Examen: Microsoft (TS: Microsoft .NET Framework 3.5 -C Windows Workflow Foundation)
Questions et réponses: 176 Q&As
070-504 Démo gratuit à télécharger: http://www.pass4test.fr/070-504.html
NO.1 Question
You are creating a Windows Workflow Foundation custom activity by using Microsoft .NET Framework
3.5.
You need to ensure that the following requirements are met:
The custom activity communicates with a local service hosted in the workflow runtime.
The local service receives data from the custom activity.
What should you do?
A. Define a method for the local service. Use the custom activity to invoke the method and pass data as a
method parameter.
B. Define a new event for the custom activity. Use the local service to subscribe to the event and receive
the data in the event arguments.
C. Place the data in the UserData property of the custom activity. Use the local service to read the data
directly from the UserData property.
D. Create and configure a workflow queue when the custom activity initializes. Use the custom activity to
write data to the workflow queue. Use the local service to read data from the workflow queue when the
data arrives.
Answer: A
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NO.2 Question
You create a Windows Workflow Foundation application by using Microsoft .NET Framework 3.5.
The application uses a markup-only workflow.
The workflow will also require the use of a code-beside file.
The following code fragment is implemented in XAML.
<SequentialWorkflowActivity
x:Class="ProcessNewCustomer" Name="ProcessCustomer" xmlns=
"http://schemas.microsoft.com/winfx/2006/xaml/workflow"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
</SequentialWorkflowActivity>
You need to create a class declaration to implement the custom code.
Which code segment should you use?
A. Partial Public Class ProcessNewCustomer
??Inherits SequentialWorkflowActivity
??' Class implementation code appears here.
End Class
B. Public Class ProcessNewCustomer
??Inherits SequentialWorkflowActivity
??' Class implementation code appears here.
End Class
C. Public Class ProcessNewCustomerCode
??Inherits ProcessNewCustomer
??' Class implementation code appears here.
End Class
D. Partial Public Class ProcessCustomer
??Inherits SequentialWorkflowActivity
??' Class implementation code appears here.
End Class
Answer: A
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NO.3 Question
You create a Windows Workflow Foundation application by using Microsoft .NET Framework 3.5. The
application contains a state workflow.
You write the following code segment.
WorkflowRuntime runtime = new WorkflowRuntime();
WorkflowInstance instance = runtime.CreateWorkflow(
?typeof(DynamicUpdateWorkflow));
instance.Start();
StateMachineWorkflowInstance smwi =
?new StateMachineWorkflowInstance(runtime,
?instance.InstanceId);
A dependency property named Status is defined in this workflow.
The value of a variable named amount is used to set the state of the workflow.
You need to ensure that the host application changes the state of the workflow on the basis of the value of
the amount variable.
What are the two possible code segments that you can use to achieve this goal? (Each correct answer
presents a complete solution. Choose two.)
A. if (amount >= 1000)
?smwi.SetState("HighValueState");
else
?smwi.SetState("LowValueState");
B. if (amount >= 1000)
?smwi.StateMachineWorkflow.SetValue
?(DynamicUpdateWorkflow.StatusProperty,"HighValueState")
else
?smwi.StateMachineWorkflow.SetValue
?(DynamicUpdateWorkflow.StatusProperty, "LowValueState");
C. if (amount >= 1000)
?instance.GetWorkflowDefinition().SetValue
?(DynamicUpdateWorkflow.StatusProperty,"HighValueState");
else
?instance.GetWorkflowDefinition().SetValue
?(DynamicUpdateWorkflow.StatusProperty,"LowValueState");
D. if (amount >= 1000)
{
??StateActivity high = (StateActivity)
???smwi.StateMachineWorkflow.Activities["HighValueState"];
??smwi.SetState(high);
}
else
{
??StateActivity low = (StateActivity)
???smwi.StateMachineWorkflow.Activities["LowValueState"];
??smwi.SetState(low);
}
Answer: A AND D
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NO.4 Question
You create a Windows Workflow Foundation application by using Microsoft .NET Framework 3.5. You use
the state machine workflow in the application.
You plan to implement a mechanism that allows a host application to query a state machine workflow
instance that is currently executing.
You write the following code segment. (Line numbers are included for reference only.)
01 WorkflowRuntime runtime = new WorkflowRuntime();
02 WorkflowInstance instance =
03 ?runtime.CreateWorkflow(typeof(Workflow1));
04 instance.Start();
05
You need to identify the current state of the workflow.
Which code segment should you insert at line 05?
A. string currentstate =
?instance.GetWorkflowDefinition().ToString();
B. string currentstate =
?instance.GetWorkflowDefinition().ExecutionStatus.ToString();
C. StateMachineWorkflowInstance smwi =
?new StateMachineWorkflowInstance(runtime, instance.InstanceId);
string currentstate = smwi.StateHistory[0];
D. StateMachineWorkflowInstance smwi =
?new StateMachineWorkflowInstance(runtime, instance.InstanceId);
string currentstate = smwi.CurrentStateName;
Answer: D
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NO.5 Question
You create a workflow host application by using Microsoft .NET Framework 3.5. You use Windows
Workflow Foundation to create the application.
You need to configure the workflow runtime to ensure that all the workflow instances run asynchronously.
Which code segment should you use?
A. Dim runtime As New WorkflowRuntime()
runtime.StartRuntime()
Dim instance As WorkflowInstance = _
?runtime.CreateWorkflow(GetType(CustomerWorkflow))
instance.Start()
B. Dim runtime As New WorkflowRuntime()
runtime.StartRuntime()
Dim scheduler As ManualWorkflowSchedulerService = _
?runtime.GetService(Of ManualWorkflowSchedulerService)()
Dim instance As WorkflowInstance = _
?runtime.CreateWorkflow(GetType(CustomerWorkflow))
scheduler.RunWorkflow(instance.InstanceId)
C. Dim runtime As New WorkflowRuntime()
Dim scheduler As New ManualWorkflowSchedulerService()
runtime.AddService(scheduler)
runtime.StartRuntime()
Dim instance As WorkflowInstance = _
?runtime.CreateWorkflow(GetType(CustomerWorkflow))
instance.Start()
D. Dim runtime As New WorkflowRuntime()
runtime.StartRuntime()
Dim scheduler As New DefaultWorkflowSchedulerService()
runtime.AddService(scheduler)
Dim instance As WorkflowInstance = _
?runtime.CreateWorkflow(GetType(CustomerWorkflow))
instance.Start()
Answer: A
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NO.6 Question
You use a built-in tracking service to track specific workflow parameters.
You need to check whether the workflow parameters have been stored in the tracking database.
What should you do? (Each correct answer presents part of a solution. Choose two.)
A. Display the contents of the WorkflowInstance table of the tracking database.
B. Include the SqlTrackingQuery class in a code segment to retrieve tracked workflows and
SqlTrackingWorkflowInstance class to inspect them.
C. Use the ActivityTrackingLocation class to determine if the value has been set to a database.
D. Display the contents of the TrackingDataItem table of the tracking database.
Answer: B AND D
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NO.7 Question
A custom activity defined in an assembly named LitwareActivities is defined as follows:
namespace LitwareActivities
{
public class WriteLineActivity : Activity
{
protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
{
Console.WriteLine(Message);
return ActivityExecutionStatus.Closed;
}
private string _message;
public string Message
{
get { return _message; }
set { _message = value; }
}
...
}
}
You need to create a sequential workflow where the execution path can be generated on the fly by an
application.
Which XML code segment should you use?
A. <SequentialWorkflowActivity
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/workflow"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:Litware="clr-namespace:LitwareActivities;assembly=LitwareActivities">
<Litware:WriteLineActivity Message="Hello, WF"/>
</SequentialWorkflowActivity>
B. <Workflow
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/workflow"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:Litware="clr-namespace:LitwareActivities;assembly=LitwareActivities">
<Litware:WriteLineActivity Message="Hello, WF"/>
</Workflow>
C. <Workflow
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
class:Litware="clr-namespace:LitwareActivities;assembly=LitwareActivities">
<Litware:WriteLineActivity Message="Hello, WF"/>
</Workflow>
D. <SequentialWorkflowActivity
class:Litware="clr-namespace:LitwareActivities;assembly=LitwareActivities">
<Litware:WriteLineActivity Message="Hello, WF"/>
</SequentialWorkflowActivity>
Answer: A
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NO.8 You are writing a sequential console workflow that consists of a delay activity and a code activity, as
shown in the exhibit. (Click the Exhibit button for the sequential console workflow image)
In the execution code of the second activity, you try to modify the workflow as follows:
private void codeActivity_ExecuteCode(object sender, EventArgs e)
{
CodeActivity delay = sender as CodeActivity;
Console.WriteLine(delay.Name);
WorkflowChanges workflowChanges = new WorkflowChanges(this);
CodeActivity codeActivity = new CodeActivity();
codeActivity.Name = "codeActivity2";
codeActivity.ExecuteCode += new EventHandler(codeActivity2_ExecuteCode);
workflowChanges.TransientWorkflow.Activities.Add(codeActivity);
this.ApplyWorkflowChanges(workflowChanges);
}
private void codeActivity2_ExecuteCode(object sender, EventArgs e)
{
CodeActivity codeActivity = sender as CodeActivity;
Console.WriteLine(codeActivity.Name);
Console.ReadLine();
}
You also have set the modifiability of the workflow to a code condition that is set to the following function:
private void UpdateCondition(object sender, ConditionalEventArgs e)
{
if (TimeSpan.Compare(this.delayActivity.TimeoutDuration, new TimeSpan(0, 0, 5)) > 0) {
e.Result = false;
}
else {
e.Result = true;
}
}
Which code segment should you use to handle the exception?
A. workflowChanges.TransientWorkflow.Activities.Add(codeActivity);
try {
this.ApplyWorkflowChanges(workflowChanges);
}
catch (ArgumentOutOfRangeException ex) {
Console.WriteLine(ex.GetType().ToString());
Console.ReadLine();
}
B. workflowChanges.TransientWorkflow.Activities.Add(codeActivity);
try {
this.ApplyWorkflowChanges(workflowChanges);
}
catch (InvalidProgramException ex) {
Console.WriteLine(ex.GetType().ToString());
Console.ReadLine();
}
C. workflowChanges.TransientWorkflow.Activities.Add(codeActivity);
try {
this.ApplyWorkflowChanges(workflowChanges);
}
catch (InvalidOperationException ex) {
Console.WriteLine(ex.GetType().ToString());
Console.ReadLine();
}
D. workflowChanges.TransientWorkflow.Activities.Add(codeActivity);
try {
this.ApplyWorkflowChanges(workflowChanges);
}
catch (OverflowException ex) {
Console.WriteLine(ex.GetType().ToString());
Console.ReadLine();
}
Answer: C
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