NEW QUESTION 1
HOTSPOT
You are developing the following classes named: Class1
Class2 Class3
All of the classes will be part of a single assembly named Assembly.dll. Assembly.dll will be used by multiple applications.
All of the classes will implement the following interface, which is also part ofAssembly.dll: public interface Interface1
{
void Method1(decimal amount); void Method2(decimal amount);
}
You need to ensure that the Method2 method for the Class3 class can be executed only when instances of the class are accessed through the Interface1 interface. The solution must ensure that calls to the Method1 method can be made either through the interface or through an instance of the class.
Which signature should you use for each method? (To answer, select the appropriate signature for each method in the answer area.)

Answer:

Explanation:

NEW QUESTION 2
You are creating a class named Employee. The class exposes a string property named EmployeeType. The following code segment defines the Employee class. (Line numbers are included for reference only.)

The EmployeeType property value must be accessed and modified only by code within the Employee class or within a class derived from the Employee class.
You need to ensure that the implementation of the EmployeeType property meets the requirements. Which two actions should you perform? (Each correct answer represents part of the complete solution. Choose two.)

• A. Replace line 05 with the following code segment: protected get;
• B. Replace line 06 with the following code segment: private set;
• C. Replace line 03 with the following code segment: public string EmployeeType
• D. Replace line 05 with the following code segment: private get;
• E. Replace line 03 with the following code segment: protected string EmployeeType
• F. Replace line 06 with the following code segment: protected set;

Answer: BE

Explanation: protected string EmpType { get; private set;}
This is a quite common way to work with properties within base classes. Incorrect:
Not D: Cannot be used because of the internal keyword on line 03.

NEW QUESTION 3
You have the following code (line numbers are included for reference only):

You need to ensure that if an exception occurs, the exception will be logged. Which code should you insert at line 28?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: B

Explanation: * XmlWriterTraceListener
Directs tracing or debugging output as XML-encoded data to a TextWriter or to a Stream, such as a FileStream.
* TraceListener.TraceEvent Method (TraceEventCache, String, TraceEventType, Int32) Writes trace and event information to the listener specific output.
Syntax: [ComVisibleAttribute(false)] public virtual void TraceEvent( TraceEventCache eventCache, string source, TraceEventType eventType, int id
)
Reference: XmlWriterTraceListener Class
https://msdn.microsoft.com/en-us/library/system.diagnostics.xmlwritertracelistener(v=vs.110)

NEW QUESTION 4
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 14: sqlConnection.Open();
• C. Insert the following code segment at line 14: sqlConnection.BeginTransaction();
• D. Insert the following code segment at line 17: while (sqlDataReader.Read())
• E. Insert the following code segment at line 17: while (sqlDataReader.NextResult())

Answer: BD

Explanation: B: SqlConnection.Open - Opens a database connection with the property settings specified by the ConnectionString.
Reference: http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.open.aspx D: SqlDataReader.Read - Advances the SqlDataReader to the next record.
Reference: http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqldatareader.read.aspx Not E: reader.NextResult is wrong because that is used when reader has more than one result set (SP or inline SQL has more than one Select).

NEW QUESTION 5
You are implementing a method named ProcessData that performs a long-running task. The ProcessData() method has the following method signature:
public void ProcessData(List<decimal> values, CancellationTokenSource source, CancellationToken token)
If the calling code requests cancellation, the method must perform the following actions: Cancel the long-running task.
Set the task status to TaskStatus.Canceled.
You need to ensure that the ProcessData() method performs the required actions. Which code segment should you use in the method body?

• A. if (token.IsCancellationRequested) return;
• B. throw new AggregateException();
• C. token.ThrowIfCancellationRequested();
• D. source.Cancel();

Answer: C

Explanation: The CancellationToken.ThrowIfCancellationRequested method throws a OperationCanceledException if this token has had cancellation requested.
This method provides functionality equivalent to: C#
if (token.IsCancellationRequested)
throw new OperationCanceledException(token);
Reference: CancellationToken.ThrowIfCancellationRequested Method ()
https://msdn.microsoft.com/enus/ library/system.threading.cancellationtoken.throwifcancellationrequested(v=vs.110).aspx

NEW QUESTION 6
DRAG DROP
You have a class named Product that has a property named Name. You have the following code.

You need to get the Name property of oneProduct.
How should you complete the code? To answer, drag the appropriate code elements to the correct targets. Each code element 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.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

NEW QUESTION 7
You are developing an application that includes the following code segment:

You need to implement both Start() methods in a derived class named UseStart that uses the Start() method of each interface.
Which two code segments should you use? (Each correct answer presents part of the solution. Choose two.)

• A. Option A
• B. Option B
• C. Option C
• D. Option D
• E. Option E
• F. Option F

Answer: CD

Explanation: C: Because it explicitly implements the two Start functions of both interfaces.
D: Because we need to type cast the starter object to the interface that we want to use the implementation for.
Reference: Inheritance from multiple interfaces with the same method name http://stackoverflow.com/questions/2371178/inheritance-from-multiple-interfaces-with-the-samemethod- name/2371203#2371203

NEW QUESTION 8
DRAG DROP
You have the following code.

You need to return all of the products and their associated categories.
How should you complete the code? To answer, drag the appropriate code elements to the correct targets in the answer area. Each code element 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:

Explanation: Example: Join operations create associations between sequences that are not explicitly modeled in the data sources. For example you can perform a join to find all the customers and distributors who have the same location. In LINQ the join clause always works against object collections instead of database tables directly.
C#
var innerJoinQuery = from cust in customers
join dist in distributors on cust.City equals dist.City
select new { CustomerName = cust.Name, DistributorName = dist.Name }; Reference: https://msdn.microsoft.com/en-us/library/bb397927.aspx https://msdn.microsoft.com/en-us/library/bb397927.aspx

NEW QUESTION 9
You need to write a console application that meets the following requirements:
If the application is compiled in Debug mode, the console output must display Entering debug mode. If the application is compiled in Release mode, the console output must display Entering release mode.
Which code should you use?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: D

Explanation: * Programmatically detecting Release/Debug mode (.NET) Boolean isDebugMode = false;
#if DEBUG
isDebugMode = true;
* #elif
#elif lets you create a compound conditional directive. Example:
#define VC7
//…
#if debug Console.Writeline(“Debug build”);
#elif VC7
Console.Writeline(“Visual Studio 7”);
#endif
Reference: http://stackoverflow.com/questions/654450/programmatically-detecting-release-debugmode- net

NEW QUESTION 10
You have the following line of code. Type type1 = typeof^MyClass); You need to create an object named obj that has a type of type1. Which line of code should you use?

• A. object obj = Activator .Createlnstance( "type 1" .GetType()) ;
• B. type1 obj = Activator.Createlnstance(typel);
• C. type1 obj = Activator.Createlnstance( "type1" .GetType());
• D. object obj = Activator.Createlnstance(typ1);

Answer: B

NEW QUESTION 11
You are developing an application by using C#.
The application includes an object that performs a long running process.
You need to ensure that the garbage collector does not release the object's resources until the process completes.
Which garbage collector method should you use?

• A. WaitForFullGCComplete()
• B. SuppressFinalize()
• C. WaitForFullGCApproach()
• D. WaitForPendingFinalizers()

Answer: B

Explanation: You can use the SuppressFinalize method in a resource class to prevent a redundant garbage collection from being called.
Reference: GC.SuppressFinalize Method (Object)
https://msdn.microsoft.com/en-us/library/system.gc.suppressfinalize(v=vs.110).aspx

NEW QUESTION 12
You are developing a C# application that includes a class named Product. The following code segment defines the Product class:

You implement System.ComponentModel.DataAnnotations.IValidateableObject interface to provide a way to validate the Product object.
The Product object has the following requirements: The Id property must have a value greater than zero.
The Name property must have a value other than empty or null.
You need to validate the Product object. Which code segment should you use?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: B

NEW QUESTION 13
HOTSPOT
A developer designs an interface that contains the following code:

For each of the following statements, select Yes if the statement is true. Otherwise, select No.

Answer:

Explanation:

NEW QUESTION 14
You are creating a class library that will be used in a web application. You need to ensure that the class library assembly is strongly named. What should you do?

• A. Use the gacutil.exe command-line tool.
• B. Use the xsd.exe command-line tool.
• C. Use the aspnet_regiis.exe command-line tool.
• D. Use assembly attributes.

Answer: D

Explanation: The Windows Software Development Kit (SDK) provides several ways to sign an assembly with a strong name:
* Using the Assembly Linker (Al.exe) provided by the Windows SDK.
* Using assembly attributes to insert the strong name information in your code. You can use either the AssemblyKeyFileAttribute or the AssemblyKeyNameAttribute, depending on where the key file to be used is located.
* Using compiler options such /keyfile or /delaysign in C# and Visual Basic, or the /KEYFILE or
/DELAYSIGN linker option in C++. (For information on delay signing, see Delay Signing an Assembly.)

NEW QUESTION 15
You are developing an assembly.
You plan to sign the assembly when the assembly is developed. You need to reserve space in the assembly for the signature.
What should you do?

• A. Run the Assembly Linker tool from the Windows Software Development Kit (Windows SDK).
• B. Run the Strong Name tool from the Windows Software Development Kit (Windows SDK).
• C. Add the AssemblySignatureKeyAttribute attribute the assembly.
• D. Add the AssemblyDelaySignAttribute attribute to the assembly.

Answer: D

Explanation: The AssemblyDelaySignAttribute class specifies that the assembly is not fully signed when created. Reference: https://msdn.microsoft.com/enus/ library/system.refilection.assemblydelaysignattribute(v=vs.110).aspx

NEW QUESTION 16
HOTSPOT
You have the following code:

For each of the following statements, select Yes if the statement is true. Otherwise, select No.

Answer:

Explanation: Note:
* CustomerID is declared private.
* CompanyName is declted protected.
* State is declared protected.
The protected keyword is a member access modifier. A protected member is accessible from within the class in which it is declared, and from within any class derived from the class that declared this member.