Pinpoint 70-483 Exam Questions and Answers 2021

NEW QUESTION 1
You are developing a method named GetHash that will return a hash value for a file. The method includes the following code. (Line numbers are included for reference only.)

You need to return the cryptographic hash of the bytes contained in the fileBytes variable. Which code segment should you insert at line 05?

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

Answer: D

Explanation: The hashAlgorithm.ComputeHash computes the hash value for the input data. Reference: HashAlgorithm.ComputeHash Method https://msdn.microsoft.com/enus/ library/system.security.cryptography.hashalgorithm.computehash(v=vs.110).aspx

NEW QUESTION 2
DRAG DROP
You are developing an application by using C#. The application will output the text string "First Line" followed by the text string "Second Line".
You need to ensure that an empty line separates the text strings.
Which four code segments should you use in sequence? (To answer, move the appropriate code segments to the answer area and arrange them in the correct order.)

Answer:

Explanation: Box 1:

First we create the variable.
Box 2:

We create the first text line.
Box 3:

We add a blank line.
The StringBuilder.AppendLine method appends the default line terminator to the end of the current StringBuilder object.
Box 4:

Finally we add the second line.

NEW QUESTION 3
HOTSPOT
You have an existing order processing system that accepts .xml files,
The following code shows an example of a properly formatted order in XML:

You create the following class that will be serialized:

For each of the following properties, select Yes if the property is serialized according to the defined schema. Otherwise, select No.

Answer:

Explanation: OrderId – NO (this will serialize as an element, not as aa attribute)
OrderDate – NO (doesn't have DataMember attribute, thus is completely ignored) CustomerName – YES (DataMember is set correctly)

NEW QUESTION 4
You are developing an application. The application includes classes named Mammal and Animal and an interface named IAnimal.
The Mammal class must meet the following requirements:
It must either inherit from the Animal class or implement the IAnimal interface. It must be inheritable by other classes in the application.
You need to ensure that the Mammal class meets the requirements.
Which two code segments can you use to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

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

Answer: AC

Explanation: When applied to a class, the sealed modifier prevents other classes from inheriting from it. Reference: http://msdn.microsoft.com/en-us/library/88c54tsw(v=vs.110).aspx

NEW QUESTION 5
You are developing an application that includes a class named Customer and a generic list of customers. The following code segment declares the list of customers:
List<Customer> customersList = new List<Customer> () ;
You populate the customersList object with several hundred Customer objects. The application must display the data for five Customer objects at a time.
You need to create a method that will return the correct number of Customer objects. Which code segment should you use?

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

Answer: A

Explanation: Note: Something wrong with question as the question is about LINQ, while the answers are about class definitions (and not LINQ method definitions).

NEW QUESTION 6
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 7
An application includes a class named Person. The Person class includes a method named GetData. You need to ensure that the GetData() method can be used only by the Person class and not by any class derived from the Person class.
Which access modifier should you use for the GetData() method?

• A. Public
• B. Protected internal
• C. Internal
• D. Private
• E. Protected

Answer: B

Explanation: The protected keyword is a member access modifier. A protected member is accessible within its class and by derived class instances.

NEW QUESTION 8
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have the following C# code. (Line numbers are included for reference only.)

You need the foreach loop to display a running total of the array elements, as shown in the following output.
13610
15
Solution: You insert the following code at line 02:

Does this meet the goal?

• A. Yes
• B. No

Answer: B

Explanation: x += y is equivalent to x = x + y
References: https://docs.microsoft.com/en-us/dotnet/csharp/languagereference/ operators/addition-assignment-operator

NEW QUESTION 9
HOTSPOT
You are building an application in Microsoft Visual Studio 2013. You have the following code.

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

Answer:

Explanation:

NEW QUESTION 10
You are creating an application that reads from a database.
You need to use different databases during the development phase and the testing phase by using conditional compilation techniques.
What should you do?

• A. Configure the Define TRACE constant setting in Microsoft Visual Studio.
• B. Decorate the code by using the [DebuggerDisplay("Mydebug")] attribute.
• C. Configure the Define DEBUG constant setting in Microsoft Visual Studio.
• D. Disable the strong-name bypass feature of Microsoft .NET Framework in the registry.

Answer: C

Explanation: Use one debug version to connect to the development database, and a standard version to connect to the live database.

NEW QUESTION 11
You are developing an application in C#.
The application uses exception handling on a method that is used to execute mathematical calculations by using integer numbers.
You write the following catch blocks for the method (line numbers are included for reference only):

You need to add the following code to the method:

At which line should you insert the code?

• A. 01B 03
• B. 05
• C. 07

Answer: A

NEW QUESTION 12
You are developing an application that will process orders. The debug and release versions of the application will display different logo images.
You need to ensure that the correct image path is set based on the build configuration. Which code segment should you use?

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

Answer: C

Explanation: There is no such constraint (unless you define one explicitly) RELEASE. http://stackoverflow.com/questions/507704/will-if-release-work-like-if-debug-does-in-c

NEW QUESTION 13
DRAG DROP
You have a class named Customer and a class named Order.
The customer class has a property named Orders that contains a list of Order objects. The Order class has a property named OrderDate that contains the date of the Order.
You need to create a LINQ query that returns all of the customers who had at least one order during the year 2005.
You write the following code.

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: Target 1 : Where
Target 2 : Join
Target 3 : =>
Target 4 : ==

NEW QUESTION 14
You are creating a console application by using C#. You need to access the application assembly. Which code segment should you use?

• A. Assembly.GetAssembly(this);
• B. this.GetType();
• C. Assembly.Load();
• D. Assembly.GetExecutingAssembly();

Answer: D

Explanation: Assembly.GetExecutingAssembly - Gets the assembly that contains the code that is currently executing.
Reference: http://msdn.microsoft.com/enus/ library/system.refilection.assembly.getexecutingassembly(v=vs.110).aspx Incorrect:
Not A: Assembly.GetAssembly - Gets the currently loaded assembly in which the specified class is defined.
http://msdn.microsoft.com/en-us/library/system.refilection.assembly.getassembly.aspx

NEW QUESTION 15
You have two assemblies named Assembly1 and Assembly2 that are written in C#. Assembly1 loads Assembly2 by executing the following code.

You create a new project in Microsoft Visual Studio to build a new assembly that will replace Assembly2. The new assembly has the same name and version as the original Assembly2 assembly. When you execute the code, Assembly1 cannot load Assembly2.
What should you do to ensure that Assembly1 can load Assembly2?

• A. Modify the project propertie
• B. Click Delay sign only.
• C. Change the version of new Assembly2 assembly to 1.0.2.5.
• D. Use the sn.exe command to create a new key fil
• E. Set the assembly:AssemblyKeyFileAttribute attribute to the new key file.
• F. Run the al.exe command to sign Assembly2. Use the same key file used for the original Assembly2 assembly.

Answer: C

NEW QUESTION 16
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

Answer: C

Explanation: Note SampleFraction on line 9. The Base counter type SampleBase has the Parent
(composite) counter type SampleFraction.
Reference: PerformanceCounterType Enumeration
http://msdn.microsoft.com/en-us/library/system.diagnostics.performancecountertype.aspx

NEW QUESTION 17
You are implementing a new method named ProcessData. The ProcessData() method calls a thirdparty component that performs a long-running operation to retrieve stock information from a web
service.
The third-party component uses the IAsyncResult pattern to signal completion of the long-running operation so that the UI can be updated with the new values.
You need to ensure that the calling code handles the long-running operation as a System.Threading.Tasks.Task object to avoid blocking the UI thread.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

• A. Create a TaskCompletionSource<T> object.
• B. Call the component by using the TaskFactory.FromAsync() method.
• C. Apply the following attribute to the ProcessData() method signature: [Methodlmpl(MethodlmplOptions.Synchronized)]
• D. Apply the async modifier to the ProcessData() method signature.

Answer: AB

Explanation: A: In many scenarios, it is useful to enable a Task<TResult> to represent an external asynchronous operation. TaskCompletionSource<TResult> is provided for this purpose. It enables the creation of a task that can be handed out to consumers, and those consumers can use the members of the task as they would any other. However, unlike most tasks, the state of a task created by a TaskCompletionSource is controlled explicitly by the methods on TaskCompletionSource. This enables the completion of the external asynchronous operation to be propagated to the underlying Task. The separation also ensures that consumers are not able to transition the state without access to the corresponding TaskCompletionSource.
B: TaskFactory.FromAsync Method
Creates a Task that represents a pair of begin and end methods that conform to the Asynchronous Programming Model pattern. Overloaded.
Example:
TaskFactory.FromAsync Method (IAsyncResult, Action<IAsyncResult>)
Creates a Task that executes an end method action when a specified IAsyncResult completes. Note:
* System.Threading.Tasks.Task Represents an asynchronous operation.

NEW QUESTION 18
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