Matt, a security consultant, has been tasked with increasing server fault tolerance and has been
given no budget to accomplish his task. Which of the following can Matt implement to ensure
servers will withstand hardware failure?

A.
Hardware load balancing

B.
RAID

C.
A cold site

D.
A host standby

Explanation:
Fault tolerance is the ability of a system to sustain operations in the event of a component failure.
Fault-tolerant systems can continue operation even though a critical component, such as a disk
drive, has failed. This capability involves overengineering systems by adding redundant
components and subsystems. RAID can achieve fault tolerance using software which can be done
using the existing hardware and software.