Answer:
Basically, anything quantity that is not defined as one of the 7 base quantities is a derived quantity by definition. Pressure is not one of the 7 base quantities. Hence it is a derived quantity.
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:
There is nothing please put it then i will edit this answer.
Explanation:
