NEW QUESTION 1
You are developing an application that includes methods named ConvertAmount and TransferFunds. You need to ensure that the precision and range of the value in the amount variable is not lost when the TransferFunds() method is called.
Which code segment should you use?

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

Answer: A

Explanation: The double keyword signifies a simple type that stores 64-bit floating-point values. The float keyword signifies a simple type that stores 32-bit floating-point values. Reference: double (C# Reference)

NEW QUESTION 2
You are developing an application. The application calls a method that returns an array of integers named employeeIds. You define an integer variable named employeeIdToRemove and assign a value to it. You declare an array named filteredEmployeeIds.
You have the following requirements:
Remove duplicate integers from the employeeIds array.
Sort the array in order from the highest value to the lowest value.
Remove the integer value stored in the employeeIdToRemove variable from the employeeIds array. You need to create a LINQ query to meet the requirements.
Which code segment should you use?

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

Answer: C

Explanation: The Distinct keyword avoids duplicates, and OrderByDescending provides the proper ordering from highest to lowest.

NEW QUESTION 3
You are developing an application that includes methods named ConvertAmount and TransferFunds. You need to ensure that the precision and range of the value in the amount variable is not lost when the TransferFunds() method is called.
Which code segment should you use?

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

Answer: C

Explanation: Simply use float for the TransferFunds parameter. Note:
* The float keyword signifies a simple type that stores 32-bit floating-point values.
* The double keyword signifies a simple type that stores 64-bit floating-point values

NEW QUESTION 4
You are debugging an application that calculates loan interest. The application includes the following code. (Line numbers are included for reference only.)

You have the following requirements:
The debugger must break execution within the Calculatelnterest() method when the loanAmount variable is less than or equal to zero.
The release version of the code must not be impacted by any changes. You need to meet the requirements.
What should you do?

• A. Insert the following code segment at tine 05: Debug.Write(loanAmount > 0);
• B. Insert the following code segment at line 05: Trace.Write(loanAmount > 0);
• C. Insert the following code segment at line 03: Debug.Assert(loanAmount > 0);
• D. Insert the following code segment at line 03: Trace.Assert(loanAmount > 0);

Answer: C

Explanation: By default, the Debug.Assert method works only in debug builds. Use the Trace.Assert method if you want to do assertions in release builds. For more information, see Assertions in Managed Code. http://msdn.microsoft.com/en-us/library/kssw4w7z.aspx

NEW QUESTION 5
DRAG DROP
You have a method that will evaluate a parameter of type Int32 named Status. You need to ensure that the method meets the following requirements:
If Status is set to Active, the method must return 1. If Status is set to Inactive, the method must return 0.
If Status is any other value, the method must return -1.
What should you do? (To answer, drag the appropriate statement to the correct location in the answer area. Each statement 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:
int caseSwitch = 1; switch (caseSwitch)
{
case 1:
Console.WriteLine("Case 1"); break;
case 2:
Console.WriteLine("Case 2"); break;
default: Console.WriteLine("Default case"); break;
}
Reference: switch (C# Reference) https://msdn.microsoft.com/en-us/library/06tc147t.aspx

NEW QUESTION 6
You are implementing a method named ProcessReports that performs a long-running task. The ProcessReports() method has the following method signature:
public void ProcessReports(List<decimal> values,CancellationTokenSource cts, CancellationToken ct) 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 ProcessReports() method performs the required actions. Which code segment should you use in the method body?

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

Answer: B

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 7
You are developing a C# application named Application1 by using Microsoft Visual Studio 2021. 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. IntelliTrace
• B. Memory Usage from Performance Profiler
• C. Performance Wizard from Performance Profiler
• D. Code Analysis

Answer: B

NEW QUESTION 8
You are developing an application that includes the following code segment. (Line numbers are included for reference only.)

You need to ensure that the DoWork(Widget widget) method runs. With which code segment should you replace line 24?

• A. DoWork((Widget)o);
• B. DoWork(new Widget(o));
• C. DoWork(o is Widget);
• D. DoWork((ItemBase)o);

Answer: A

NEW QUESTION 9
You use the Task.Run() method to launch a long-running data processing operation. The data processing operation often fails in times of heavy network congestion.
If the data processing operation fails, a second operation must clean up any results of the first operation.
You need to ensure that the second operation is invoked only if the data processing operation throws an unhandled exception.
What should you do?

• A. Create a TaskCompletionSource<T> object and call the TrySetException() method of the object.
• B. Create a task by calling the Task.ContinueWith() method.
• C. Examine the Task.Status property immediately after the call to the Task.Run() method.
• D. Create a task inside the existing Task.Run() method by using the AttachedToParent optio

Answer: B

Explanation: Task.ContinueWith - Creates a continuation that executes asynchronously when the target Task completes.The returned Task will not be scheduled for execution until the current task has completed, whether it completes due to running to completion successfully, faulting due to an unhandled exception, or exiting out early due to being canceled.
http://msdn.microsoft.com/en-us/library/dd270696.aspx

NEW QUESTION 10
You are developing an assembly that will be used by multiple applications. You need to install the assembly in the Global Assembly Cache (GAC).
Which two actions can you perform to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

• A. Use the Assembly Registration tool (regasm.exe) to register the assembly and to copy the assembly to the GAC.
• B. Use the Strong Name tool (sn.exe) to copy the assembly into the GAC.
• C. Use Microsoft Register Server (regsvr32.exe) to add the assembly to the GAC.
• D. Use the Global Assembly Cache tool (gacutil.exe) to add the assembly to the GAC.
• E. Use Windows Installer 2.0 to add the assembly to the GA

Answer: DE

Explanation: There are two ways to deploy an assembly into the global assembly cache:
* Use an installer designed to work with the global assembly cache. This is the preferred option for installing assemblies into the global assembly cache.
* Use a developer tool called the Global Assembly Cache tool (Gacutil.exe), provided by the Windows
Software Development Kit (SDK). Note:
In deployment scenarios, use Windows Installer 2.0 to install assemblies into the global assembly cache. Use the Global Assembly Cache tool only in development scenarios, because it does not provide assembly reference counting and other features provided when using the Windows Installer. http://msdn.microsoft.com/en-us/library/yf1d93sz%28v=vs.110%29.aspx

NEW QUESTION 11
DRAG DROP
You have the following class. (Line numbers are included for reference only.)

You need to complete the doOperation method to meet the following requirements:
If AddNumb is passed as the operationName parameter, the AddNumb function is called. If SubNumb is passed as the operationName parameter, the SubNumb function is called.
Which code should you insert at line 16? Develop the solution by selecting and arranging the required code blocks in the correct order. You may not need all of the code blocks.

Answer:

Explanation: Note:
* target 2:
GetType() is a method you call on individual objects, to get the execution-time type of the object. Incorrect: typeof is an operator to obtain a type known at compile-time (or at least a generic type parameter). The operand of typeof is always the name of a type or type parameter - never an expression with a value (e.g. a variable). See the C# language specification for more details. Reference: What is the difference of getting Type by using GetType() and typeof()? http://stackoverflow.com/questions/11312111/when-and-where-to-use-gettype-or-typeof

NEW QUESTION 12
You are modifying an application that processes loans. The following code defines the Loan class. (Line numbers are included for reference only.)

Loans are restricted to a maximum term of 10 years. The application must send a notification message if a loan request exceeds 10 years.
You need to implement the notification mechanism.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

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

Answer: BD

NEW QUESTION 13
DRAG DROP
You are developing a C# application. The application includes a class named Rate. The following code segment implements the Rate class:

You define a collection of rates named rateCollection by using the following code segment: Collection<Rate> rateCollection = new Collection<Rate>() ;
The application receives an XML file that contains rate information in the following format:

You need to parse the XML file and populate the rateCollection collection with Rate objects. You have the following code:

Which code segments should you include in Target 1, Target 2, Target 3 and Target 4 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.)

Answer:

Explanation: * Target 1: The element name is rate not Ratesheet.
The Xmlreader readToFollowing reads until the named element is found.
* Target 2:
The following example gets the value of the first attribute. reader.ReadToFollowing("book"); reader.MoveToFirstAttribute();
string genre = reader.Value; Console.WriteLine("The genre value: " + genre);
* Target 3, Target 4:
The following example displays all attributes on the current node.
C#VB
if (reader.HasAttributes) {
Console.WriteLine("Attributes of <" + reader.Name + ">"); while (reader.MoveToNextAttribute()) { Console.WriteLine(" {0}={1}", reader.Name, reader.Value);
}
// Move the reader back to the element node. reader.MoveToElement();
}
The XmlReader.MoveToElement method moves to the element that contains the current attribute node.
Reference: XmlReader Methods
https://msdn.microsoft.com/en-us/library/System.Xml.XmlReader_methods(v=vs.110).aspx

NEW QUESTION 14
DRAG DROP
You are developing an application that includes a class named Customer.
The application will output the Customer class as a structured XML document by using the following code segment:

You need to ensure that the Customer class will serialize to XML. You have the following code:

Which code segments should you include in Target 1, Target 2, Target 3 and Target 4 to complete the code? To answer, drag the appropriate code segments to the correct targets. 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.

Answer:

Explanation:

NEW QUESTION 15
An application receives JSON data in the following format:

The application includes the following code segment. (Line numbers are included for reference only.)

You need to ensure that the ConvertToName() method returns the JSON input string as a Name object.
Which code segment should you insert at line 10?

• A. Return ser.ConvertToType<Name>(json);
• B. Return ser.DeserializeObject(json);
• C. Return ser.Deserialize<Name>(json);
• D. Return (Name)ser.Serialize(json);

Answer: C

Explanation: JavaScriptSerializer.Deserialize<T> - Converts the specified JSON string to an object of type T. http://msdn.microsoft.com/en-us/library/bb355316.aspx

NEW QUESTION 16
DRAG DROP
You are developing an application that implements a set of custom exception types. You declare the custom exception types by using the following code segments:

The application includes a function named DoWork that throws .NET Framework exceptions and custom exceptions.
The application contains only the following logging methods:

The application must meet the following requirements:
When AdventureWorksValidationException exceptions are caught, log the information by using the static void Log (AdventureWorksValidationException ex) method.
When AdventureWorksDbException or other AdventureWorksException exceptions are caught, log the information by using the static void I oq( AdventureWorksException ex) method.
You need to meet the requirements.
How should you complete the relevant code? (To answer, drag the appropriate code segments to the correct locations 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.)

Answer:

Explanation: Go from the most specific exception to the least on. So the order would be:
1. AdventureWorksValidationException – catch this ex
2. AdventureWorksException – catch AdventureWorksDbException and other AdventureWorksExceptions
3. Exception – catch all the rest