Database Management System (DBMS) MCQs with answers Page - 71

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A

Admin • 833.24K Points
Coach

Q. Optical disk technology uses

  • (A) helical scanning
  • (B) dat
  • (C) a laser beam
  • (D) raid

A

Admin • 833.24K Points
Coach

Q. With multiple disks, we can improve the transfer rate as well by data across multiple disks.

  • (A) striping
  • (B) dividing
  • (C) mirroring
  • (D) dividing

A

Admin • 833.24K Points
Coach

Q. partitions data and parity among all N+1 disks, instead of storing data in N-disks and parity in one disk.

  • (A) block interleaved parity
  • (B) block interleaved distributed parity
  • (C) bit parity
  • (D) bit interleaved parity

A

Admin • 833.24K Points
Coach

Q. The RAID level which mirroring is done along with stripping is

  • (A) raid 1+0
  • (B) raid 0
  • (C) raid 2
  • (D) both raid 1+0 and raid 0

A

Admin • 833.24K Points
Coach

Q. Where performance and reliability are both important, RAID level is used.

  • (A) 0
  • (B) 1
  • (C) 2
  • (D) 0+1

A

Admin • 833.24K Points
Coach

Q. is popular for applications such as storage of log files in a database system since it offers the best write performance.

  • (A) raid level 1
  • (B) raid level 2
  • (C) raid level 0
  • (D) raid level 3

A

Admin • 833.24K Points
Coach

Q. which increases the number of I/O operations needed to write a single logical block, pays a significant time penalty in terms of write performance.

  • (A) raid level 1
  • (B) raid level 2
  • (C) raid level 5
  • (D) raid level 3

A

Admin • 833.24K Points
Coach

Q. Tertiary storage is built with :

  • (A) a lot of money
  • (B) unremovable media
  • (C) removable media
  • (D) secondary storage

A

Admin • 833.24K Points
Coach

Q. Operating system is responsible for

  • (A) disk initialization
  • (B) booting from disk
  • (C) bad-bock recovery
  • (D) all of the mentioned

A

Admin • 833.24K Points
Coach

Q. A typical tape drive is a typical disk drive.

  • (A) more expensive than
  • (B) cheaper than
  • (C) of the same cost as
  • (D) none of the mentioned

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