Basic Operating System MCQ
Basic Operating System MCQ
431. The RAID schemd indicate
- Random access of information data.
- Random array of independent disks.
- Redundant array of independent disks.
- Redundant access of information data.
432. Which of the RAID level does not employ independent access technique ?
- RAID 6
- RAID 5
- RAID 4
- RAID 3
433. Which of the followig RAID level uses independehnt access technique and distributes the parity strips across all disks ?
- Two
- Three
- Four
- Five
434. Cache memory is
- Bigger and slower than main memory
- Bigger and faster that main memory
- Smaller and slower than main memory
- Smaller and faster then main memory
435. By principle of locality, cache memory
- Increases average memory access time.
- Reduces average memory access time
- Does not affect the average memory access time
- None of these
436. Following is not true for disk cache
- It is a buffer in main memory for disk sector
- It contains the copy of some of the sector on the disk
- It is biger is size than main memory
- it is smaller is size than main memory
437. In disk storage devices, data are recordedon and later retrieved from disk via a conducting coil named
- Tail
- Foot
- Head
- Hand
438. In disk storage devices during read and write operation
- Head is rotate while platter is stationary
- Head is stationary while platter rotates
- Head and platter are both stationary
- None is true
439. In magnetic disk, density that is in bits per linear inch
- Increase in moving from the uter most track to the inner most track
- Deceases in moving from the outer most track to the inner most track
- Ramains same in moving from the outer most track to the inner most track.
- Randomly distributed in moving from outer most track to the inner most track.
440. Data from and to magnetic disk is transformed in
- Continuation
- Blocks
- Blocka and continuation both
- None of these