- All Exams Instant Download
What is the advantage or disadvantage of choosing pre-terminated category 6 or 6A cabling?
You are installing new copper cabling. What is the advantage or disadvantage of choosing pre-terminated category 6 or 6A cabling?A . Pre-terminated cabling is already factory tested and saves installation time.B . There is no advantage as most new copper cabling network designs are based on category 3 or 5E...
What should you recommend?
You have three UPS systems connected in parallel. The UPS systems have an imbalance in the load sharing of approximately 20%. What should you recommend?A . Review the cable lengths of each UPS to the common busbarB . Nothing, there is no reason for any concernC . Review the common...
What should you recommend for the placement of down-flow air conditioners?
A computer room with a raised floor has been designed with racks in a hot/cold aisle setup. What should you recommend for the placement of down-flow air conditioners?A . Air conditioners perpendicular to (at the end of the row of) the Cold-AisleB . Air conditioners perpendicular to (at the end...
What is the main reason to install Earth Leakage protection?
What is the main reason to install Earth Leakage protection?A . Protection of ICT equipment against high-frequency noise currentsB . Protection of human livesC . Improvement of the data center grounding/earthing systemD . Protection against lightning strikesView AnswerAnswer: B Explanation: Earth Leakage Protection is primarily installed to protect human lives...
What information is missing to perform the battery calculation?
Management has requested a 15-minute battery bank assuming full load on the UPS. The UPS vendor has provided the following specifications of the UPS: • Rated power: 30 kVA • Rectifier input voltage: 400 V/3 phase • Rectifier input power factor: 0.8 • Battery rated voltage: 384 V • Number...
What is a potential disadvantage of using a hypoxic-based fire suppression system as a fire extinguishing system?
What is a potential disadvantage of using a hypoxic-based fire suppression system as a fire extinguishing system?A . It can only be used in computer rooms which have sufficient air changes per hour.B . The gas containers need to be close to the hazard area.C . It can only be...
Are new floor loading calculations required?
A new network storage device in a non-standard size rack of approximately 600 kg/1,300 lbs is going to be installed in the data center. Are new floor loading calculations required?A . No, as long as the equipment is less than 700 kg/1,500 lbs it will be within the limits.B ....
Do employers need to take precautions?
The noise levels in the data center are approximately 91 dB (A). Do employers need to take precautions?A . No, anything less than 100 dB (A) is acceptable.B . There are no regulations regarding noise levels inside a building. Regulations only apply to noise pollution outside of the building.C ....
When are the wet bulb and dry bulb temperatures identical?
When are the wet bulb and dry bulb temperatures identical?A . When the dry bulb's temperature is at the lowest allowable temperature for IT equipment as per ASHRAEB . When the dry bulb's temperature is at the highest allowable temperature for IT equipment as per ASHRAEC . When the relative...
B. To which feed will the output of the UPS be synchronized?
The UPS of a data center, with an ANSI/TIA-942 Rating-4, is installed with the rectifier connected to power feed A and the bypass/reserve line input connected to power feed B. To which feed will the output of the UPS be synchronized?A . The UPS will not synchronize to any of...
