CompTIA Security+ Question B-22

Which of the following provides data the best fault tolerance at the LOWEST cost?

A. Load balancing
B. Clustering
C. Server virtualization
D. RAID 6

Answer: D

Explanation:
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. RAID can achieve fault tolerance using software which can be done using the existing hardware and software thus representing the lowest cost option.

CompTIA Security+ Question A-99

The Chief Information Officer (CIO) wants to implement a redundant server location to which the production server images can be moved within 48 hours and services can be quickly restored, in case of a catastrophic failure of the primary datacenter’s HVAC. Which of the following can be implemented?

A. Cold site
B. Load balancing
C. Warm site
D. Hot site

Answer: C

Explanation:
Warm sites provide computer systems and compatible media capabilities. If a warm site is used, administrators and other staff will need to install and configure systems to resume operations. For most organizations, a warm site could be a remote office, a leased facility, or another organization with which yours has a reciprocal agreement.

CompTIA Security+ Question A-61

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

Answer: B

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.

CompTIA Network+ Question B-81

The network administrator is configuring a switch port for a file server with a dual NIC. The file server needs to be configured for redundancy and both ports on the NIC need to be combined for maximum throughput. Which of the following features on the switch should the network administrator use?

A. BPDU
B. LACP
C. Spanning tree
D. Load balancing

Correct Answer: B