Storage which retains data after power cut off is called.

Storage devices in a computer differ in whether they need continuous power to hold data. This difference matters because it determines what happens to stored information when the computer is switched off.

Non-volatile storage retains its data even after power is removed, which is why files saved on a hard disk, solid-state drive, or flash drive are still available the next time the computer is turned on. Volatile storage, such as RAM, behaves the opposite way, losing its contents the moment power is cut.

Sequential storage and direct storage describe how data is accessed, one item after another versus jumping straight to a location, not whether the data survives a power cut. Those terms answer a different question from the one being asked here.

Exam takeaway: link surviving a power loss directly to non-volatile storage, and keep access-method terms like sequential and direct separate from this power-related distinction.