Microsoft 70-483 Online Practice Questions and Exam Preparation

Microsoft 70-483 Online Questions & Answers

• Question 141:

  You are developing an application. The application converts a Location object to a string by using a method named WriteObject.

  The WriteObject() method accepts two parameters, a Location object and an XmlObjectSerializer object.

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

  

  You need to serialize the Location object as XML. Which code segment should you insert at line 20?

  A. new XmlSerializer(typeof(Location))
  B. new NetDataContractSerializer()
  C. new DataContractJsonSerializer(typeof (Location))
  D. new DataContractSerializer(typeof(Location))
  D. new DataContractSerializer(typeof(Location))

  ---

  The code is using [DataContract] attribute here so need to use DataContractSerializer class.

  The DataContractJsonSerializer class serializes objects to the JavaScript Object Notation (JSON) and deserializes JSON data to objects.

  Use the DataContractJsonSerializer class to serialize instances of a type into a JSON document and to deserialize a JSON document into an instance of a type.

• Question 142:

  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 have the following code:

  

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

  Select and Place:

  

  

• Question 143:

  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
  D. Option D

  ---

  The hashAlgorithm.ComputeHash computes the hash value for the input data. Reference: HashAlgorithm.ComputeHash Method https://msdn.microsoft.com/en

  us/library/system.security.cryptography.hashalgorithm.computehash(v=vs.110).aspx

• Question 144:

  You have a collection of Product objects named products. Each Product has a category.

  You need to determine the longest name for each category.

  You write the following code.

  

  Which keyword should you use for Target 1?

  A. Group
  B. Where
  C. Aggregate
  D. Select
  B. Where

• Question 145:

  DRAG DROP

  You are developing a custom collection named LoanCollection for a class named Loan class.

  You need to ensure that you can process each Loan object in the LoanCollection collection by using a foreach loop.

  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.)

  Select and Place:

  

  

• Question 146:

  You are implementing a method named ProcessFile that retrieves data files from web servers and FTP servers. The ProcessFile () method has the following method signature:

  Public void ProcessFile(Guid dataFileld, string dataFileUri)

  Each time the ProcessFile() method is called, it must retrieve a unique data file and then save the data file to disk.

  You need to complete the implementation of the ProcessFile() method. Which code segment should you use?

  

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

  ---

  *

  WebRequest.Create Method (Uri)

  Initializes a new WebRequest instance for the specified URI scheme.

  *

  Example:

  1.

  To request data from a host server

  Create a WebRequest instance by calling Create with the URI of the resource.

  C#

  WebRequest request = WebRequest.Create("http://www.contoso.com/");

  2.

  Set any property values that you need in the WebRequest. For example, to enable authentication, set the Credentials property to an instance of the NetworkCredential class.

  C#

  request.Credentials = CredentialCache.DefaultCredentials;

  3.

  To send the request to the server, call GetResponse. The actual type of the returned WebResponse object is determined by the scheme of the requested URI.

  C#

  WebResponse response = request.GetResponse();

  4.

  To get the stream containing response data sent by the server, use the GetResponseStream method of the WebResponse.

  C#

  Stream dataStream = response.GetResponseStream ();

  5.

  The StreamReader.ReadToEnd method reads all characters from the current position to the end of the stream.

• Question 147:

  An application is throwing unhandled NullReferenceException and FormatException errors. The stack trace shows that the exceptions occur in the GetWebResult() method. The application includes the following code to parse XML data retrieved from a web service. (Line numbers are included for reference only.)

  

  You need to handle the exceptions without interfering with the existing error-handling infrastructure.

  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
  A. Option A
  C. Option C

  ---

  A: The TryParse method is like the Parse method, except the TryParse method does not throw an exception if the conversion fails. It eliminates the need to use exception handling to test for a FormatException in the event that s is invalid and cannot be successfully parsed.

  C: UnhandledException event handler If the UnhandledException event is handled in the default application domain, it is raised there for any unhandled exception in any thread, no matter what application domain the thread started in. If the thread started in an application domain that has an event handler for UnhandledException, the event is raised in that application domain.

• Question 148:

  DRAG DROP

  You have the following code.

  

  You need to ensure that the classify string contains the next "positive" if the input number is more than zero and "negative" if the input number is less than or equal to zero.

  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.

  Select and Place:

  

  

• Question 149:

  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. Specify the /define compiler option.
  C. Run the Assembly Linker tool from the Windows Software Development Kit (Windows SDK).
  D. Decorate the code by using the [assembly:AssemblyDelaySignAttribute(true)] attribute.
  B. Specify the /define compiler option.

  ---

  You can specify the compiler settings for your application in several ways:

  *

  The property pages

  *

  The command line

  *

  #CONST (for Visual Basic) and #define (for C#)

  Note: You can have either the Trace or Debug conditional attribute turned on for a build, or both, or neither. Thus, there are four types of build: Debug, Trace, both, or neither. Some release builds for production deployment might contain neither; most debugging builds contain both. Reference: How to: Compile Conditionally with Trace and Debug https://msdn.microsoft.com/en-us/library/64yxa344(v=vs.110).aspx

• Question 150:

  You are implementing a method named FloorTemperature that performs conversions between value types and reference types. The following code segment implements the method. (Line numbers are included for reference only.)

  

  You need to ensure that the application does not throw exceptions on invalid conversions. Which code segment should you insert at line 04?

  A. int result = (int)degreesRef;
  B. int result = (int)(double)degreesRef;
  C. int result = degreesRef;
  D. int result = (int)(float)degreesRef;
  D. int result = (int)(float)degreesRef;