Computer Concept Courses (CCC) Practice Test 2025 - Free Practice Questions and Study Guide

Nonvolatile memory is a type of storage that retains its data even when the power is turned off. EEPROM, or Electrically Erasable Programmable Read-Only Memory, fits this definition perfectly because it allows for the data to be electrically written and erased while maintaining its integrity in the absence of power. This makes it ideal for applications where data integrity is crucial across power cycles, such as in firmware storage for devices.

In contrast, the other options do not retain data after power is lost. RAM (Random Access Memory) and cache memory are both types of volatile memory, meaning they lose their data when the computer is turned off. CPU registers also fall into this category, as they are used for temporary storage of data during processing and do not retain information post power loss. Therefore, the distinguishing feature of EEPROM being nonvolatile makes it the correct answer.