You use a Windows 8.1 tablet. The tablet receives Windows Update updates automatically from the Internet.The tablet has Wi-Fi and is connected to a 3G mobile broadband Wi-Fi hot spot.
You need to minimize data usage while connected to this hot spot.
What should you do?

A.
Turn on Airplane Mode.

B.
Disable File and Print Sharing for mobile broadband connections.

C.
Configure the interface metric of IP settings for Wi-Fi connection as 1.

D.
Edit the Inbound Rule of Windows Firewall, and then disable Internet Control Message Protocol (ICMP)
traffic.

E.
Configure the broadband connection as a metered network.

Explanation:
You can limit the bandwidth used by the broadband connection by configuring it as a metered network. A
metered network is a network where data downloaded is ‘metered’ (measured) and you are charged for the
amount of data downloaded.
Setting a connection as metered prevents Windows from automatically using bandwidth in a number of ways
including the following:
Disables automatic downloading of Windows updates: Windows won’t automatically download updates
from Windows Update on metered Internet connections. You’ll get a “Download” button you can click
whenever you want to install updates.
Disables automatic downloading of app updates: The Windows Store won’t automatically download
updates for your installed “Store apps” on metered connections, either. Desktop apps like Chrome, Firefox,
and others will continue updating themselves normally.
Tiles may not update: Microsoft says that the live tiles on your Start menu or Start screen “may” stop
updating on a metered connection:
Incorrect Answers:
A: Turning on Airplane Mode would disable the Wi-Fi connection which would prevent you from connecting to
the Internet. It would ‘minimize data usage’ but you would lose your connection to the Wi-Fi hotspot.
B: Disabling File and Print Sharing for mobile broadband connections is not best way to minimize data usage.
It is very unlikely that data usage while connected to a 3G mobile broadband Wi-Fi hot spot is network sharing
traffic.
C: Modifying the metric of the Wi-Fi connection will have no effect on the amount of data used. An interface
metric is used to determine which interface will be used when there are multiple active connections.
D: Disabling Internet Control Message Protocol (ICMP) traffic on the firewall is not best way to minimize data
usage. The data usage will not be caused by ICMP traffic.

http://www.howtogeek.com/226722/how-when-and-why-to-set-a-connection-as-metered-on-windows-10/