70-483 試験問題を無料オンラインアクセス

You are developing an application that will write data to a file. The application includes the following code segment. (Line numbers are included for reference only.)
* Missing code *
You need to ensure that the WriteData() method will write data to a file.
Which four code segments should you insert in sequence at line 03? (To answer, move the appropriate code segments from the list of code segments to the answer area and arrange them in the correct order.)

正解：

Explanation:
Note:
* StreamWriter Constructor (String)
Initializes a new instance of the StreamWriter class for the specified file by using the default encoding and buffer size.
Incorrect:
The StreamWriter class has no method Open.

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

You are creating a method by using C#. The method will accept three strings as parameters. The parameters are named string1, string2, and string3. The parameter values range from 5,000 to 15,000 characters.
The method will have the following signature.

You need to ensure that StringCompare only returns true if string1 concatenated to string2 is equal to string3. The comparison must be case-insensitive. The solution must ensure that StringCompare executes as quickly as possible.
Which three code blocks should you use to develop the solution? To answer, move the appropriate code blocks from the list of code blocks to the answer area and arrange them in the correct order.
NOTE: Each correct selection is worth one point.

正解：

Explanation:
References:
https://docs.microsoft.com/en-us/dotnet/csharp/how-to/compare-strings

You have the following code:

You need to display all of the vehicles that start with the letter "A".
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.

正解：

You need to write a method that retrieves data from a Microsoft Access 2013 database. The method must meet the following requirements:
* Be read-only.
* Be able to use the data before the entire data set is retrieved.
* Minimize the amount of system overhead and the amount of memory usage.
Which type of object should you use in the method?

• A.unTyped DataSet
• B.DbDataAdapter
• C.DataContext
• D.DbDataReader