Exin CDCS EXIN EPI Certified Data Centre Specialist Exam Exam Practice Test Questions

• Question 1

  What is a potential disadvantage of using water mist as a fire extinguishing system?

  • It only uses 10% of the water normally used in a water-based fire suppression, which might not be enough to suppress the fire
  • It will rapidly increase the humidity level in the data center, which can cause a potential risk for the operation of the equipment
  • It extracts oxygen from the air creating a potential risk for humans inside the computer room
  • It has droplets that are too small (100-120 microns) so it can only be used for small fires

  Show Answer Answer: B Next

• Question 2

  Do you need to consider bullet (ballistics) protection when designing a data center?

  • Bullet (ballistics) protection is required by ANSI/TIA-942 for all data centers.
  • Bullet (ballistics) protection is only required when the data center is located in an area with a high crime rate.
  • Bullet (ballistics) protection is required by ANSI/TIA-942 for data centers Rated 3/4.
  • Bullet (ballistics) protection is only required if the facility is a potential target or the building is in the vicinity of a potential target.

  Show Answer Answer: D Next

• Question 3

  What is a potential disadvantage of using a hypoxic-based fire suppression system as a fire extinguishing system?

  • It can only be used in computer rooms which have sufficient air changes per hour.
  • The gas containers need to be close to the hazard area.
  • It can only be used in non-continuous occupied areas.
  • It can only be used in computer rooms where you have sufficient positive pressure.

  Show Answer Answer: C Next

• Question 4

  The humidity in the computer room has changed from about 50% down to 35% Relative Humidity (RH).What influence does this have on Electrostatic Discharge (ESD)?

  • No influence as long as the temperature is at approximately 20°C/77°F
  • Relative humidity has no influence on ESD
  • ESD levels will go up
  • ESD levels will go down

  Show Answer Answer: C Next

• Question 5

  What is the calculation for the desired attenuation factor for shielding material?

  • A = 20 log (M / R)
  • Where
  • A is Attenuation
  • M is the maximum acceptable value R is the real value measured
  • A = M / R
  • Where
  • A is Attenuation
  • M is the maximum acceptable value R is the real value measured
  • A = 20 log (R / M)
  • Where
  • A is Attenuation
  • R is the real value measured
  • M is the maximum acceptable value
  • You do not have to calculate the attenuation factor for shielding material as it always has the same attenuation

  Show Answer Answer: C Next