Multiple Choice Questions: 1. Redundancy is a built-in feature here A. Magnetic

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Multiple Choice Questions:

1. Redundancy is a built-in feature here
A. Magnetic disks B. RAID
C. Serial I/O tapes D. Optical disks

2. The megnetoresistive sensor (MR) increases what capability in newer rigid disks?
A. Operating frequency B. Area
C. Access times D. None of the above

3. Each sector in the disk can be reached at the same time using this layout
A. Multiple zone layout B. Constant velocity layout
C. Static sector layout D. None of the above

4. Data access time depends on
A. Seek time B. Operating frequency
C. Rotational delay D. All of the above

5. In RAID architecture, data is distributed as an array by a scheme called
A. Interleaving B. Stripping
C. De-centralizing C. None of the above

6. RAID level 0 is primarily used in applications where
A. Cost is a priority B. Reliability is a priority
C. Area is a priority C. All of the above

7. The chief difference between RAID 4 and RAID 5 lie with
A. Parity strips B. Redundant disks
C. Performance D. All of the above

8. Typical technique used to write/read data onto magnetic tapes is
A. Compound parallel recording B. Serpentine recording
C. Multiple access recording D. None of the above

9. Bit density is more in which device
A. Compact disk B. Magnetic tape
C. DVD D. Magnetic disk

10. Change of phase in phased disks is performed by
A. Optical light B. Laser
C. Magnetization D. None of the above

11. The primary advantage of RAID level 6 is
A. High data availability B. High data accessibility
C. Low data loss D. All the above

12. Data is CDROM are arranged in blocks with what of the following fields?
A. Data B. Auxiliary
C. Header D. All the above

13. What property of the CDROM is similar to magnetic disks
A. Constant linear velocity B. Access rate
C. Parallel access frequency D. None of the above

14. What property makes the CDROM be used for archival storage.
A. Redundancy B. Rewritable
C. Removable D. All the above

15. Which of the following is not a head mechanism
A. Aerodynamic gap B. Intrasector gap
C. Fixed gap D. Contact

16. Which of the following substrates for magnetic disks has better capacity to withstand shock and damage
A. Resin B. Poly-crystalline
C. Glass D. Quartz

Explanation / Answer

2C 3A 4 A 5A 6A 7D 8B 9D 10C 11D 12C 13 C 12B 14 A 15C 16D

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