All About PoE (Not the Writer)

All Answers relate to NFPA 70, 2017 Edition

1. PoE was first developed with the establishment of the IEEE standard in __________.
A. 1996
B. 1999
C. 2003
D. 2007
 
2. The standard recommends that the signal crossover be done internally in each hub port. When the crossover function occurs inside a hub port, the standard states that the port should be marked with a _________.
A. C
B. X
C. Y
D. T
 
3. The original PoE standard was designed around Category 3 and 5 specifications, to deliver approximately _________ watts through a powered device with _________ mA of current.
A. 13/350
B. 24/240
C. 15/150
D. 17/270
 
4. The IEEE standard for PoE allowed delivering power on two combinations of two pairs as two different alternatives.  Those alternatives were referred to as _____________
A. PoE 1 and PoE 2
B. Single mode and multi mode
C. Mode A and Mode B
D. 568A and 568B
 
5. How many classes of Power Sourcing Equipment (PSE) have been established?
A. 3
B. 5
C. 9
D. 11
Feedback:  
6. The range of power levels for all PSE classes ranges from ________ to __________..
A. 9 volts/15 volts
B. 30 watts/90 watts
C. 12 volts/18 watts
D. 4 watts/90 watts
 
7. Because of a power loss in cabling, the maximum distance specified is ___________.
A. 100 feet
B. 1,000 feet
C. 100 meters
D. 1,000 meters
 
8. It is apparent that a(n) _____________ in power delivery _____________ current flow, which then results in a(n) ______________ in heat generation within the cabling structure.
A. increase/increases/increase
B. decrease/increases/increase
C. rise/lowers/rise
D. increase/increases/decrease
 
9. An increase in the twist rate of cable pairs creates a longer electrical path.
A. True
B. False
 
10. Which of the following is not a cause of cable temperature increases with PoE deployment?
A. Gauge size
B. Twist rate per inch
C. Improper termination
D. Number of PoE drops 
E. Current
 
SUBMIT
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