Following is not true for disk cache

Related MCQs

• An unpaged cache associates disk domains with the address of the read and continues for a specific length. The major disadvantage of unpaged cache is that
• RAID-O does not support the following characteristics: A: RAID is a set of physical disk drives viewed by the operating system as a single logical drive. B: Data distributed across the physical drives of an array. C: Re- demdant disk capacity is used to store parity information, which guarantees data recoverability in case of a disk failure.
• Match the following in RAID scheme : A- Parallel access array, B-Independent access array, 1- All member disks participate in the execution of every I/O request. 2- Each member disk participates separately in the execution of every I/O request. 3- Here spindles of the individual drives are synchronized so that each disk head is in the same position on each disk at any given time.
• A disk scheduling algorithm in an operating system causes the disk arm to seek back and forth across the disk surface servicing all requests in its path, based on
• Arrange the following I/O device in increasing data rate Hard disk, Floppy disk, Key board
• In system buffer cache, used in UNIX, following not true
• In disk scheduling, the shortest service time first policy selects the disk request that
• In shortest service time first policy, applied on disk scheduling, the disk request is selected
• In disk storage devices, data are recorded on and later retrieved from disk via a conducting coil named
• A-Fixed-Head disk, B-Movable-Head disk, 1- One head per track and al head are mounted on rigid arm that extends across all tracks. 2- Only one head and head is mounted on the arm, such that it can position the track.