CompTIA Security+ Exam Prep

Answer: A - Cache memory allows access to information easier and faster than data that is stored in real memory. When a system assumes that it will need to access specific information many times throughout its processing activities, it will store the information in cache memory so it is easily and quickly accessible. Data in cache can be accessed much more quickly than data stored in real memory. Therefore, any information needed by the CPU very quickly, and very often, is usually stored in cache memory, thereby improving the overall speed of the computer system.