CEA 5

RAID level 0 is not a true member of the RAID family because it does not include redundancy to improve

• True

• False

Because data are striped in very small strips, RAID 3 cannot achieve very high data transfer rates.

• True

• False

The SSDs now on the market use a type of semiconductor memory referred to as flash memory.

• True

• False

SSD performance has a tendency to speed up as the device is used.

• True

• False

Flash memory becomes unusable after a certain number of writes.

• True

• False

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 ___________.

• magnetic read and write mechanisms

• platters

• the glass substrate

• a solid state drive

Adjacent tracks are separated by _________.

• sectors

• gaps

• pits

• heads

Data are transferred to and from the disk in __________.

• tracks

• gaps

• sectors

• pits

In most contemporary systems fixed-length sectors are used, with _________ bytes being the nearly universal sector size.

• 64

• 128

• 256

• 512

Scanning information at the same rate by rotating the disk at a fixed speed is known as the _________.

• constant angular velocity

• magnetoresistive

• rotational delay

• constant linear velocity