Which term describes data lost after power loss?

Which term describes data lost after power loss?

• A. Persistent
• B. Non-Persistent
• C. High Availability
• D. Replication

Answer: (B)

Data that is lost after power loss comes from volatile memory, which doesn’t survive a shutdown. This type of data is described as non-persistent. Non-persistent means the information disappears when power is removed, like what you’d expect from RAM or in-memory caches that aren’t saved to non-volatile storage.

In contrast, persistent data is stored to non-volatile media such as hard drives or SSDs and remains after power is restored. High availability focuses on keeping systems up and reachable with redundancy, not on whether individual data survives a power loss. Replication involves copying data to other locations for durability or disaster recovery, again not directly about whether data endures power loss.