Answer: UPS
Explanation:
The redundancy effort that should be put in place to ensure the data remains available is the Uninterruptible Power Supply(UPS).
Uninterruptible Power Supply (UPS) is necessary in the provision of battery backup power when there's drop or stoppage in the flow of electricity. With regards to the question, it'll ensure that data is not lost at the system level in the event of a blackout.
<u><em>This is for answers not snap</em></u>
Answer:
area = 2.14 * 3 ** 2
Explanation:
No clue what language you use but this should be pretty universal. To find the area of a circle you use pi(r) ^ 2 or pi times radius squared

In python it looks like this:
>>> area = 3.14 * 3 ** 2
>>> print(area)
28.26<em> <Printed text</em>
Answer:
Hello there, I dont think there is a way to change you age, but maybe you shall try again tomorrow and see if an error message pop up. If the Error Message pops up, contact custumaor support!
Glad I could Help!