From the course: Certified Information Systems Auditor (CISA) Cert Prep

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Physical and environmental controls

Physical and environmental controls

From the course: Certified Information Systems Auditor (CISA) Cert Prep

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Physical and environmental controls

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- [Instructor] Now another area that will have an impact on the CIA triad of our information is going to be in relation to physical and environmental controls. So right off the bat, we have to think about electrical problems, like not enough power, too much power, a total loss of power. So we have blackouts where we lose failure totally. We have sags where we have a steep reduction and power surges where we have prolonged excess of power and spikes, a very temporary excess of power. All of those can be mitigated through uninterruptible power supplies, providing clean source of power to our data center systems. Another concern in relation to electrical problems is EMI, electromagnetic interference. And that can be caused by things like heavy machinery, fluorescent lights, that can cause interference and corruption in relation to our data. And we've got to think about the cable types that we use. For instance, twisted pair, which is the most commonly used type of cable, that's the most…

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