what conclusion can you draw from the scenario below?
you are working on a long, detailed report for your company. before you go to lunch, you save the report to a network
drive. while you are at lunch, there is a power outage in the office. when power is restored, you find your report is the
same as it was when you saved it.
the network drive cannot have its data deleted.
the network drive has a tiered cache system.
the network drive is connected to its own power source
the network drive is a nonvolatile storage device.

d) The network drive is a nonvolatile storage device.

Explanation:

You are working on a long, detailed report for your company. Before you go to lunch, you save the report to a network  drive. While you are at lunch, there is a power outage in the office. When power is restored, you find your report is the  same as it was when you saved it. To draw any conclusion, we have to look at each option specifically.

a) The network drive cannot have its data deleted.

It can be one of the the conclusions. However, generally when you store data on network drive. It has the option to edit or delete the data from the drive. Therefore, this statement is not exactly true. False

b) The network drive has a tiered cache system.

Cache is generally used to hold data or copy of a data to serve the next request faster. However, it generally get removed with the power outage. Therefore, this option is also false.

c) The network drive is connected to its own power source

Maybe this could be true. However, this option focus on the network drive can only store data when it is connected to power source. That statement is false in network drive scenario.

d) The network drive is a nonvolatile storage device.

The simple definition of a nonvolatile storage is a storage that has the capacity to store/save the data even in the presence of power outage. The same case is followed here like you have stored the data and now it is present there even in case of outage. Therefore, this option is true.