ch 15 Redundancy Flashcards
1
Q
A sag
A
is an unexpected decrease in the amount of voltage provided
2
Q
spike
A
short circuit,
3
Q
Brownouts:
A
is when the voltage drops to such an extent that it
typically causes the lights to dim and causes computers to shut off.
4
Q
10 tape rotation:
A
This method is simple and provides easy access to data that
has been backed up.
5
Q
Grandfather-father-son:
A
When attempting to use this scheme, three sets
of backup tapes must be defined—usually they are daily, weekly, and monthly,
6
Q
Towers of Hanoi:
A
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
