You need to activate the barcode scanner, Which class and method should you use?
Which code should you insert at line 03?
You are creating a console application named App1.
App1 retrieves data from the Internet by using JavaScript Object Notation (JSON).
You are developing the following code segment (line numbers are included for reference only):
You need to ensure that the code validates the JSON string.
Which code should you insert at line 03?
How should you complete the relevant code?
DRAG DROP
You are creating a class named Data that includes a dictionary object named _data.
You need to allow the garbage collection process to collect the references of the _data
object.
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.)
How should you complete the relevant code?
DRAG DROP
You are developing an application that will populate an extensive XML tree from a Microsoft
SQL Server 2008 R2 database table named Contacts.
You are creating the XML tree. The solution must meet the following requirements:
Minimize memory requirements.
Maximize data processing speed.
You open the database connection.
You need to create the XML tree.
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.)
How should you complete the relevant code segment?
DRAG DROP
You are developing a class named Temperature.
You need to ensure that collections of Temperature objects are sortable.
How should you complete the relevant code segment? (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.)
Which code segment should you insert at line 03?
Which function call or calls should you use?
You are developing a Windows Store app by using JavaScript.
The app will exchange small amounts of data with peerapps by using near field
communication, The peerapps run on other computers within range.
You need to advertise the app by using proximity tapping.
Which function call or calls should you use?
Which code should you use to replace line 05?
You are developing an application.
The application contains the following code segment (line numbers are included for
reference only):
When you run the code, you receive the following error message: “Cannot implicitly convert
type ‘object” to ‘int’. An explicit conversion exists (are you missing a cast?).”
You need to ensure that the code can be compiled. Which code should you use to replace
line 05?
What types of devices can you detect?
You are creating a Windows Store app for a retail business. You must enumerate the
available human interface devices (HIDs) on the client computer.
You need to use the Windows.Devices.HumaninterfaceDevice namespace to detect the
available devices.
What types of devices can you detect?
Which type of object should you use in the method?
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?