A momentary high voltage is a:
Answer(s): A
Too much voltage for a short period of time is a spike.Too much voltage for a long period of time is a surge.Not enough voltage for a short period of time is a sag or dipNot enough voltage for a long period of time is brownoutA short power interruption is a faultA long power interruption is a blackoutYou MUST know all of the power issues above for the purpose of the exam. From: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, 3rd. Edition McGraw- Hill/Osborne, 2005, page 368.
A momentary low voltage, from 1 cycle to a few seconds, is a:
Answer(s): C
A momentary low voltage is a sag. A synonym would be a dip.Risks to electrical power supply:POWER FAILUREBlackout: complete loss of electrical powerFault: momentary power outagePOWER DEGRADATIONBrownout: an intentional reduction of voltage by the power company.Sag/dip: a short period of low voltagePOWER EXCESSSurge: Prolonged rise in voltageSpike: Momentary High VoltageIn-rush current: the initial surge of current required by a load before it reaches normal operation. Transient: line noise or disturbance is superimposed on the supply circuit and can cause fluctuations in electrical powerRefence(s) used for this question:Harris, Shon (2012-10-25). CISSP All-in-One Exam Guide, 6th Edition (p. 462). McGraw-Hill.Kindle Edition.
A prolonged high voltage is a:
A prolonged high voltage is a surge.From: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, 3rd. Edition McGraw- Hill/Osborne, 2005, page 368.
A prolonged complete loss of electric power is a:
Answer(s): B
A prolonged power outage is a blackout.From: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, 3rd. Edition McGraw- Hill/Osborne, 2005, page 368.
A prolonged power supply that is below normal voltage is a:
A prolonged power supply that is below normal voltage is a brownout. From: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, 3rd. Edition McGraw- Hill/Osborne, 2005, page 368.
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