What is the 3-2-1 backup rule?
-
A
Back up data 3 times a day on 2 devices using 1 software
-
B
Keep 3 copies of data on 2 different media types with 1 copy offsite
-
C
Use 3 encryption methods across 2 servers with 1 password
-
D
Store 3 files in 2 folders on 1 hard drive