Unless you share the backup HD only the local user is going to see it. Given that it's a server, it's not a problem. You can also hide the backup with attributes +h +s and many other ways.
Answer: True
Explanation:
Yes, the given statement is true that that one of the quality of the wireless networks is that they uses the various radio techniques and the radio frequency.
By using this techniques, the wireless transmission occur and it enable the connectivity and allow the direction of transmission to eavesdrop. It is one of the best technique as compared to the traditional method which include copper and fiber.
The answer to this is "is a classification scheme"..hope that helped