Which of the following can Pete, a security administrator, use to distribute the processing effort when
generating hashes for a password cracking program?

A.
RAID

B.
Clustering

C.
Redundancy

D.
Virtualization

Explanation:
Anytime you connect multiple computers to work/act together as a single server, it is known as
clustering. Clustered systems utilize parallel processing (improving performance and availability) and add
redundancy.
Server clustering is used to provide failover capabilities / redundancy in addition to scalability as demand
increases.
Incorrect Answers:
A: RAID, or redundant array of independent disks (RAID). RAID allows your existing servers to have more
than one hard drive so that if the main hard drive fails, the system keeps functioning.
C: Both Clustering and Load Balancing are redundancy measures and in this question only Clustering is
mentioned.
D: Virtualization is the foundation for cloud computing. You cannot have cloud computing without
virtualization. It makes it possible by abstracting the hardware and making it available to the virtual
machines. The abstraction is done through the use of a hypervisor, which can be either Type I (bare
metal) or Type II (hosted).

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis,
2014, pp. 234-235