RAM set aside to speed up access to a hard drive. This may be part of the disk itself or may be incorporated in cache memory.

RAM set aside to speed up access to a hard drive. This may be part of the disk itself or may be incorporated in cache memory.

• A. disk cache
• B. character set
• C. DBMS
• D. computer architecture

Answer: (A)

Caching is storing a copy of data in fast memory so future requests can be served quickly without re accessing the slower storage. In this question, RAM is set aside to speed up access to a hard drive, which is exactly what a disk cache does. The data recently read from or written to the disk is kept in RAM, either in the drive itself (drive cache) or in the system’s cache memory, so subsequent accesses can be served much faster. The other terms don’t describe this mechanism: a character set relates to encoding characters, a DBMS is a database management system, and computer architecture refers to the overall design of a computer rather than a specific RAM-based storage for speeding up disk I/O.

Caching is storing a copy of data in fast memory so future requests can be served quickly without re accessing the slower storage. In this question, RAM is set aside to speed up access to a hard drive, which is exactly what a disk cache does. The data recently read from or written to the disk is kept in RAM, either in the drive itself (drive cache) or in the system’s cache memory, so subsequent accesses can be served much faster. The other terms don’t describe this mechanism: a character set relates to encoding characters, a DBMS is a database management system, and computer architecture refers to the overall design of a computer rather than a specific RAM-based storage for speeding up disk I/O.