RAID1 Writes Duplicate Copies of All Data on at Least

question 84

Multiple Choice

RAID1 writes duplicate copies of all data on at least two different disks; this means that if one disk in the RAID array fails, there is no data loss because there is a second copy of the data stored on a different disk.This is referred to as _____

• A)disk backup
• B)hard drive duplication
• C)cloud backups
• D)disk duplication
• E)disk mirroring

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Definitions:

Two Processors

A system configuration that involves two central processing units (CPUs) working together, often to increase performance or provide redundancy.

Actuator

A device used to convert a control signal into mechanical motion.

Discrete Output

Pertains to an output signal in automation systems that has only two states, commonly referred to as On or Off.

PLC

Programmable Logic Controller, an industrial digital computer which has been ruggedized and adapted for the control of manufacturing processes.