In magnetic disk                  stores information on a sector magnetically as reversals of the direction of magnetization of the magnetic material.

Related MCQs

• Hybrid disk drives are hard-disk systems that combine magnetic storage with a smaller amount of flash memory, which is used as a cache for frequently accessed data.
• There are “record-once” versions of the compact disk and digital video disk, which can be written only once; such disks are also called                      disks.
•                      scheme that records only information about dirty pages and associated information and does not even require of writing dirty pages to disk.
• The disk controller uses                  at each sector to ensure that the data is not corrupted on data retrieval.
• The primary medium for the long-term online storage of data is the                       where the entire database is stored on magnetic disk.
• A                      is the smallest unit of information that can be read from or written to the disk.
• A Web site that allows users to enter text, such as a comment or a name, and then stores it and later display it to other users, is potentially vulnerable to a kind of attack called a                                        attack.
• Which of the following stores several gigabytes of data but usually lost when power failure?
• ARIES uses a                        to identify log records, and stores it in database pages.
• Whenever an update operation occurs on a page, the operation stores the LSN of its log record in the                field of the page.