CFOS 2026 FIRE SERVICE MANAGEMENT
AND LEADERSHIP REVIEW PAPER ANSWERS
COMPLETE LEARNING PACK
◉ What causes a gainer in insertion loss testing?
Answer: Dirt on connectors during reference settings
◉ What is 0 dB?
Answer: Reference value for loss measurements
◉ What is a 0 loss reference?
Answer: the power measurement with reference cables only
◉ If a patch cord has higher loss when tested in one direction in a
single ended test,
Answer: the connector attached to the reference cable has higher
loss
◉ What basic reference method is required by network cable plant
loss standards and EIA/TIA 568B?
Answer: one cable reference
, ◉ What is the maximum loss for a splice?
Answer: 0.3 dB
◉ What is the maximum loss for a connector?
Answer: 0.75 dB
◉ The attenuation coefficient of multimode fiber?
Answer: 3.5 dB/km at 850 nm
1.5 dB/km at 1300 nm
◉ What adds a measured loss into the fiber link?
Answer: Attenuator
◉ What is the biggest factor of uncertainty in testing multimode
fiber for cable plants?
Answer: the mode power distribution caused by the test source
◉ What is used to control mode power distribution in multimode
fiber?
Answer: a mandrel wrap
AND LEADERSHIP REVIEW PAPER ANSWERS
COMPLETE LEARNING PACK
◉ What causes a gainer in insertion loss testing?
Answer: Dirt on connectors during reference settings
◉ What is 0 dB?
Answer: Reference value for loss measurements
◉ What is a 0 loss reference?
Answer: the power measurement with reference cables only
◉ If a patch cord has higher loss when tested in one direction in a
single ended test,
Answer: the connector attached to the reference cable has higher
loss
◉ What basic reference method is required by network cable plant
loss standards and EIA/TIA 568B?
Answer: one cable reference
, ◉ What is the maximum loss for a splice?
Answer: 0.3 dB
◉ What is the maximum loss for a connector?
Answer: 0.75 dB
◉ The attenuation coefficient of multimode fiber?
Answer: 3.5 dB/km at 850 nm
1.5 dB/km at 1300 nm
◉ What adds a measured loss into the fiber link?
Answer: Attenuator
◉ What is the biggest factor of uncertainty in testing multimode
fiber for cable plants?
Answer: the mode power distribution caused by the test source
◉ What is used to control mode power distribution in multimode
fiber?
Answer: a mandrel wrap