WorksheetsCEA201
Total questions: 10
Worksheet time: 6mins
Greater ability to withstand shock and damage, improvement in the uniformity of the magnet film surface to increase disk reliability, and a significant reduction in overall surface defects to help reduce read-write errors, are all benefits of ___________. ( Choice wrong aswer )
a. magnetic read and write mechanisms
b. platters
c. The glass substrate
d. A solid state drive
In most contemporary systems fixed-length sectors are used, with _________ bytes being the nearly universal sector size.
a. 64
b. 128
c. 256
d. 512
The SSDs now on the market use a type of semiconductor memory referred to as flash memory.(T/F)
T
F
There are typically hundreds of sectors per track and they may be either fixed or variable lengths.(T/F)
T
F
The width of a track is double that of the head.(T/F)
T
F
The head must generate or sense an electromagnetic field of sufficient magnitude to write and read properly.
T
F
Magnetic disks are not the foundation of external memory on virtually all computer systems.(T/F)
T
F
The areas between pits are called _________.
a. lands
b. sectors
c. cylinders
d. strips
__________ is the standardized scheme for multiple-disk database design.
RAID
CAV
CLV
SSD
RAID is not a set of physical disk drives viewed by the operating system as a single logical drive.(T/F)
T
F
