Question

Doing a assigment and needed help with 11-15

QUESTION 11 is a method of storing data across multiple hard drives to reduce data loss and improve performance. ORAID O RISC O tape backup O pipelining QUESTION 12 Secondary storage devices have larger data capacity, but generally slower access times than primary memory. True O False QUESTION 13 The outer portion of a modular (layered) operating system that allows direct user interface is the O command shell O kernel service layer input/output layer QUESTION 14 Modular (layered) operating system architecture: O restricts system access between layers to provide greater safety against malicious software. - O user service requests pass through several layers of system software before execution O is difficult in isolating and fixing errors and malicious code. O is only used in portable devices such as smart phones and tablets. QUESTION 15 The _is part of the operating system software that organizes and keep track of programs and files saved in secondary storage. O command layer O storage I/O layer O file management system (FMS) O desktop

Answer 1

11. RAID is a method of storing data across multiple hard drives to reduce data loss and improve performance. (RAID: Redundant Array of Inexpensive Disks)

12. Secondary data storage devices have large data capacity, but generally slower access times than primary memory.(true)

13. The outer portion of a modular (layered) operating system that allows direct user interface is the Command Shell.

14. Modular(layered) operating system architecture restricts system access between layers to provide greater safety against malicious software.

15. The File Management System(FMS) is part of the operating system software that organizes and keep track of programs and files saved in secondary storage.