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
So you will raid the office of your boss to get the budget and than fix the issue.
Good thinking.
(Yes, I’m still not a Robot)
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The biggest problem with RAID is that it deals with hard drive failures, not hardware issues. RAID is preferable is they are only talking hard drives and cost. But in terms of hardware failures, RAIDing has a cost. It causes the hardware to work harder. There are a number of load balancing techniques that cost nothing. Moving half the company to different proxy servers. Using round robin and caching techniques with DNS–no cost. I hate the term hardware load balancing because it could mean that you had to purchase a new hardware device or that you are simply balancing the load of your hardware. Cold and Hot sites both cost more than a hardware load balancer. I would have to go with the “not a robot” on this one.
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What do they mean by no budget? No money at all? If this is the case, then we need to use the cheapest option, which is RAID, as the other options would require some sort of budget
FAULT TOLERANCE
* 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 over engineering systems by adding redundant components and subsystems.
* RAID can achieve fault tolerance using software which can be done using the existing hardware and software.
Incorrect Answers:
A: Balancing the load between multiple servers instead of relying on only one reduces the response time, maximizes throughput, and allows better allocation of resources. It provides AVAILABILITY, but not REDUNDANCY. It does not mean withstanding hardware failure, it just means high availability. It also adds costs and there is no budget available to absorb such costs
C: A cold site is a facility that isn’t immediately ready to use. The organization using it must bring along its equipment and network. A cold site may provide network capability, but this isn’t usually the case; the site provides a place for operations to resume, but it doesn’t provide the infrastructure to support those operations. Thus no servers fault tolerance as is required.
D: A Host standby assumes that you need to purchase additional servers to act as a standby.
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