CompTIA Security Plus Mock Test Q411

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

B. Clustering
C. Redundancy
D. Virtualization

Correct Answer: B
Section: Compliance and Operational Security

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