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Question: 1Click the Exhibit button.Which air distribution method is displayed in this picture?A. Flooded supply, fully ducted returnB. Flooded supply, locally ducted returnC. Locally ducted supply, flooded returnD. Locally ducted supply, flooded returnAnswer: BQuestion: 2Click the Exhibit button.Which air distribution method is displayed in this picture?A. Fully ducted supply, flooded returnB. Flooded supply, fully ducted return2
C. Flooded supply, locally ducted returnD. Locally ducted supply, flooded returnAnswer: AQuestion: 3Click the Exhibit button.Which air distribution method is displayed in the exhibit?A. Flooded supply, flooded returnB. Flooded supply, fully ducted returnC. Flooded supply, locally ducted returnD. Locally ducted supply, flooded returnAnswer: AQuestion: 4What is the highest cost UPS configuration?A. System systemB. Parallel redundantC. Isolated redundantD. Distributed redundantAnswer: A3
Question: 5What is the difference between an undervoltage and a sag?A. A sag lasts less time than an undervoltage condition.B. A sag has less of a voltage drop than an undervoltage condition.C. A sag is due to downstream loads and undervoltage is due to the power source.D. A sag occurs in low voltage distribution and undervoltage occurs in high voltage distribution.Answer: AQuestion: 6What is required for the transfer of heat from one object to another?A. A difference in airflowB. A difference in volumeC. A difference in pressureD. A difference in temperatureAnswer: DQuestion: 7What does the CFD acronym stand for?A. Certified Field DichotomyB. Circular Flow DeterminationC. Computational Finite DeviationD. Computational Fluid DynamicsAnswer: DQuestion: 84
The rear of an IT equipment rack is fitted with a duct that is connected to a drop ceiling plenum; theplenum is connected by a duct to the perimeter CRAC unit. The CRAC unit discharges air into a raisedfloor. The IT equipment rack is located bove a hole in the raised floor which allows conditioned air toenter the rack.This is an example of which type of air distribution system?A. Flooded supply, fully ducted returnB. Locally ducted supply, flooded returnC. Flooded supply, locally ducted returnD. Fully ducted supply, fully ducted returnAnswer: DQuestion: 9Cooling towers are a typical component of which heat rejection system?A. Water cooled systemB. Glycol cooled systemC. Air cooled split systemD. Air cooled self-contained systemAnswer: AQuestion: 10Which type of humidification system uses quartz lamps extended over anopen pool of water to release water vapor?A. Infrared humidifierB. Ultrasonic humidifierC. Electromagnetic humidifierD. Steam canister humidifierAnswer: AQuestion: 115
What is an advantage of choosing a four-post open frame rack over a two-post open frame rack?A. Lower costB. Smaller footprintC. Easier assemblyD. Increased strengthAnswer: DQuestion: 12How do enclosures improve rack system cooling?A. By improving natural air flowB. By improving fire suppressionC. By allowing hot and cold air to mix togetherD. By preventing hot and cold air from mixing togetherAnswer: DQuestion: 13An infrared scan of cabling can detect what two problems? (Choose two.)A. An overloaded circuitB. A loose connectionC. Compatibility errorsD. Electrical interferenceAnswer: A,BQuestion: 14What are three benefits of Inergen? (Choose three.)A. It is non-conductive.6
B. It has zero ozone depletion potential.C. It has a low pressure delivery system.D. It requires less storage tanks than Halon.E. It is safe to discharge in an occupied area.Answer: A,B,EQuestion: 15What is a component of the network-critical physical infrastructure (NCPI)?A. Voice over IPB. Fire protectionC. Office suppliesD. Desktop application softwareAnswer: BQuestion: 16What is an example of a standard building management system (BMS) protocol?A. IPV6B. TCP/IPC. MODBUSD. 10/100 BASE-TAnswer: CQuestion: 17What does the term "5-nines" availability mean?A. 5 minutes of downtime per yearB. 9 minutes of downtime per yearC. 14 minutes of downtime per yearD. 45 minutes of downtime per year7
Answer: AQuestion: 18What would be a comprehensive strategy for protecting the most critical racks of a data center?A. Key access to the critical racksB. Video camera pointed directly at critical racksC. Iris scanner at the entrance to the data centerD. Nested security perimeters with racks at the innermost levelAnswer: DQuestion: 19What are three advantages of biometric access control? (Choose three.)A. Cannot be lostB. Inexpensive to deployC. Difficult to fool the sensorD. Cannot be shared with othersE. Always correctly identifies the userAnswer: A,C,DQuestion: 20Requiring frequent password changes can compromise security because .A. Users tend to write down frequently changed passwordsB. It makes the password database an easier target for hackersC. It makes it harder for legitimate users to access their own dataD. It burdens the IT help desk with requests for forgotten or expired passwordsAnswer: A8
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