Microsoft TS Microsoft .NET Framework 2.0 Application Development Foundation Set 1

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Microsoft TS Microsoft .NET Framework 2.0 Application Development Foundation Set 1

You are developing a custom event handler to automatically print all open documents. The event handler helps specify the number of copies to be printed. You need to develop a custom event arguments class to pass as a
parameter to the event handler.
Which code segment should you use?

public class PrintingArgs
{
private int copies;
public PrintingArgs(int numberOfCopies)
{
this.copies = numberOfCopies;
}
public int Copies
{
get { return this.copies; }
}
} ✘ public class PrintingArgs : EventArgs{
private int copies;
public PrintingArgs(int numberOfCopies)
{
this.copies = numberOfCopies;
}
public int Copies
{
get { return this.copies; }
}
} ✘ public class PrintingArgs{
private EventArgs eventArgs;
public PrintingArgs(EventArgs ea)
{
this.eventArgs = ea;
}
public EventArgs Args
{
get { return eventArgs; }
}
} ✘ public class PrintingArgs : EventArgs{
private int copies;
} ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You use Reflection to obtain information about a method named MyMethod. You need to ascertain whether MyMethod is accessible to a derived class. What should you do?

Call the IsAssembly property of the MethodInfo class. ✘ Call the IsVirtual property of the MethodInfo class. ✘ Call the IsStatic property of the MethodInfo class. ✘ Call the IsFamily property of the MethodInfo class. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You are working on a debug build of an application. You need to find the line of code that caused an exception to be thrown. Which property of the Exception class should you use to achieve this goal?

Data ✘ Message ✘ StackTrace ✘ Source ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You are testing a newly developed method named PersistToDB. This method accepts a parameter of type EventLogEntry. This method does not return a value. You need to create a code segment that helps you to test
the method. The code segment must read entries from the application log of local computers and then pass the entries on to the PersistToDB method. The code block must pass only events of type Error or Warning from the
source MySource to the PersistToDB method.
Which code segment should you use?

EventLog myLog = new EventLog("Application", ".");
foreach (EventLogEntry entry in myLog.Entries)
{
if (entry.Source == "MySource")
{
PersistToDB(entry);
}
}

✘

EventLog myLog = new EventLog("Application", ".");myLog.Source = "MySource";
foreach (EventLogEntry entry in myLog.Entries)
{
if (entry.EntryType == (EventLogEntryType.Error & EventLogEntryType.Warning)) {
PersistToDB(entry);
}
}

✘

EventLog myLog = new EventLog("Application", ".");foreach (EventLogEntry entry in myLog.Entries)
{
if (entry.Source == "MySource")
{
if (entry.EntryType == EventLogEntryType.Error || entry.EntryType == EventLogEntryType.Warning)
{
PersistToDB(entry);
}
}
}

✘

EventLog myLog = new EventLog("Application", ".");myLog.Source = "MySource";
foreach (EventLogEntry entry in myLog.Entries)
{
if (entry.EntryType == EventLogEntryType.Error || entry.EntryType == EventLogEntryType.Warning)
{
PersistToDB(entry);
}
}

✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Your application uses two threads, named thread One and thread Two. You need to modify the code to prevent the execution of thread One until thread Two completes execution.
What should you do?

Configure threadOne to run at a lower priority. ✘ Configure threadTwo to run at a higher priority. ✘ Use a WaitCallback delegate to synchronize the threads. ✘ Call the Sleep method of threadOne. ✔ Call the SpinLock method of threadOne. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You are writing a custom dictionary. The custom-dictionary class is named MyDictionary. You need to ensure that the dictionary is type safe. Which code segment should you use?

class MyDictionary : Dictionary ✘ class MyDictionary : HashTable ✘ class MyDictionary : IDictionary ✘ class MyDictionary { ... }Dictionary t = new Dictionary(); MyDictionary dictionary = (MyDictionary)t; ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You are creating an assembly named Assembly1. Assembly1 contains a public method. The global cache contains a second assembly named Assembly2. You must ensure that the public method is only called from
Assembly2. Which permission class should you use?

GacIdentityPermission ✘ StrongNameIdentityPermission ✘ DataProtectionPermission ✘ PublisherIdentityPermission ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You create an application to send a message by e-mail. An SMTP server is available on the local subnet. The SMTP server is named smtp.contoso.com.
To test the application, you use a source address, me@contoso.com, and a target address, you@contoso.com.
You need to transmit the e-mail message.
Which code segment should you use?

MailAddress addrFrom =
new MailAddress("me@contoso.com", "Me");
MailAddress addrTo =
new MailAddress("you@contoso.com", "You");
MailMessage message = new MailMessage(addrFrom, addrTo); message.Subject = "Greetings!";
message.Body = "Test";
SocketInformation info = new SocketInformation();
Socket client = new Socket(info);
System.Text.ASCIIEncoding enc =
new System.Text.ASCIIEncoding();
byte[] msgBytes = enc.GetBytes(message.ToString());
client.Send(msgBytes);

✘

MailAddress addrFrom = new MailAddress("me@contoso.com"); MailAddress addrTo = new MailAddress("you@contoso.com"); MailMessage message = new MailMessage(addrFrom, addrTo); message.Subject =
"Greetings!";
message.Body = "Test";
SmtpClient client = new SmtpClient("smtp.contoso.com"); client.Send(message);

✘

string strSmtpClient = "smtp.contoso.com";string strFrom = "me@contoso.com";
string strTo = "you@contoso.com";
string strSubject = "Greetings!";
string strBody = "Test";
MailMessage msg =
new MailMessage(strFrom, strTo, strSubject, strSmtpClient);

✘

✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You are developing a custom-collection class. You need to create a method in your class. You need to ensure that the method you create in your class returns a type that is compatible with the Foreach statement. Which criterion should the method meet?

The method must return a type of either IEnumerator or IEnumerable. ✘ The method must return a type of IComparable. ✘ The method must explicitly contain a collection. ✘ The method must be the only iterator in the class. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

10.

You are developing an application to perform mathematical calculations. You develop a class named CalculationValues. You write a procedure named PerformCalculation that operates on an instance of the class.
You need to ensure that the user interface of the application continues to respond while calculations are being performed. You need to write a code segment that calls the PerformCalculation procedure to achieve this goal.
Which code segment should you use?

public ref class CalculationValues {...};
public ref class Calculator {
public :
void PerformCalculation(Object= values) {}
};
public ref class ThreadTest{
private :
void DoWork (){
CalculationValues= myValues = gcnew CalculationValues(); Calculator = calc = gcnew Calculator();
Thread= newThread = gcnew Thread(
gcnew ParameterizedThreadStart(calc,
&Calculator::PerformCalculation));
newThread->Start(myValues);
}
}; ✘ public ref class CalculationValues {...};public ref class Calculator {
public :
void PerformCalculation() {}
};
public ref class ThreadTest{
private :
void DoWork (){
CalculationValues= myValues = gcnew CalculationValues(); Calculator = calc = gcnew Calculator();
ThreadStart= delStart = gcnew
ThreadStart(calc, &Calculator::PerformCalculation);
Thread= newThread = gcnew Thread(delStart);
if (newThread->IsAlive) {
newThread->Start(myValues);
}
}
}; ✘ public ref class CalculationValues {...};public ref class Calculator {
public :
void PerformCalculation(CalculationValues= values) {} };
public ref class ThreadTest{
private :
void DoWork (){
CalculationValues= myValues = gcnew CalculationValues(); Calculator = calc = gcnew Calculator();
Application::DoEvents();
calc->PerformCalculation(myValues);
Application::DoEvents();
}
}; ✘ public ref class CalculationValues {...};public ref class Calculator {
public :
void PerformCalculation() {}
};
public ref class ThreadTest{
private :
void DoWork (){
CalculationValues= myValues = gcnew CalculationValues(); Calculator = calc = gcnew Calculator();
Thread= newThread = gcnew Thread(
gcnew ThreadStart(calc, &Calculator::PerformCalculation)); newThread->Start(myValues);
}
}; ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

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Microsoft TS Microsoft .NET Framework 2.0 Application Development Foundation Set 1

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