You are developing a Windows Store app to connect to a server and download files that are
larger than 500 MB to the local file system.
You need to recommend a technology to download the files.
Which technology should you recommend? (More than one answer choice may achieve the
goal. Select the BEST answer.)

A.
Background Transfer

B.
XML HTTP Request

C.
web Sockets

D.
HTTP Client

Explanation:

To provide a consistent experience when downloading larger media (video and music) with
an operational lifetime that may span beyond multiple app suspensions and/or changes in
network availability, your app can use Background Transfer.

Note:
You can now use XMLHttpRequest to upload or download objects that are larger than a few
MB, such as Blob objects and FormData objects, which may take a long time to complete.
Because apps can be terminated at any time, you should consider using the Windows
Runtime background transfer APIs for these operations.