ch 15 Redundancy

Question 1

A sag

Answer 1

is an unexpected decrease in the amount of voltage provided

Question 2

spike

Answer 2

short circuit,

Question 3

Brownouts:

Answer 3

is when the voltage drops to such an extent that it

typically causes the lights to dim and causes computers to shut off.

Question 4

10 tape rotation:

Answer 4

This method is simple and provides easy access to data that

has been backed up.

Question 5

Grandfather-father-son:

Answer 5

When attempting to use this scheme, three sets

of backup tapes must be defined—usually they are daily, weekly, and monthly,

Question 6

Towers of Hanoi:

Answer 6

backup rotation scheme is based on the mathematics
of the Towers of Hanoi puzzle. This also uses three backup sets, but they are
rotated differently