SCTE - BROADBAND TELECOMCENTER
SPECIALIST (BTCS) - FACILITIES SECTION EXAM
QUESTIONS AND ANSWERS GRADED A+
2026/2027
Power usage effectiveness (PUE) - ANSWER -The ratio of the total amount of
power that might be used by the headend or hub, to the power required for the
critical or IT equipment--includes power used for lighting, cooling systems, power
distribution.
PUE - ANSWER -total facility power used/total consumed power by IT
equipment
Carbon Usage Effectiveness (CUE) - ANSWER -a ratio of the total carbon
emissions due to the total energy consumption of the data center compared to the
energy consumption of the data center's servers and IT equipment.
Water Usage Effectiveness (WUE) - ANSWER -a ratio of the annual water usage
to how much energy is being consumed by the IT equipment and servers, and is
expressed in liters/ kilowatt-hour (L/kWh).
2 AWG - ANSWER -gauge of wire should be used inside the facility to bound the
equipment to the ground
National Fire Protection Association - ANSWER -The organization OSHA ask
for help to create workplace electrical safety standards
Overage - ANSWER -can be the result of long-term problems that create swells,
or, overvoltage can be thought of as an extended swell. Overvoltages are also
common in areas where supply transformer tap settings are set incorrectly and
loads were reduced.
Underage - ANSWER -result from long-term problems that create sags. The term
"brownout" describes this problem and has been superseded by the term
"undervoltage." Brownout is ambiguous in that it also refers to commercial power
delivery strategy during periods of extended high demand. Undervoltages can
, create overheating in motors and lead to the failure of non-linear loads such as
computer power supplies.
Power Spike - ANSWER -occurs when the power level rises above normal levels
and then drops back to normal in less than one second.
Power Surge - ANSWER -occurs when the power level rises above normal levels
and stays there for more than one or two seconds.
Power Quality - ANSWER -problems generally indicate that stray frequencies
have entered the power system through bad cords or loose connections.
Red Cable - ANSWER -cable used in the upstream path
Humidity and temperature - ANSWER -The two metrics the HVAC system is
controlling in a facility.
Ethernet - ANSWER -The standard is taking over for transport of digital signal in
a headend.
Time-Division Multiple Access (TDMA) - ANSWER -The multiplexing is used
by docsis 3.0 modems for upstream communications
satmux - ANSWER -places digital programming into one channel
Decimal - ANSWER -Is base 10 which equals 10 symbols/numerals or 0 to 9.
Hexadecimal - ANSWER -Is base 16 which equals 16 symbols--0-9 and A-F.
Binary - ANSWER -Is base 2 which equals 2 symbols, 0 to 1, referred to as off
and on in digital.
Preamble - ANSWER -Allows time for the receiver (of an Ethernet frame) in each
node to synchronize the receive data clock to the transmit data clock.
Start Frame Deliminator (SFD) - ANSWER -indicates the next byte is the start of
the frame
Maximum Transmission Unit (MTU) - ANSWER -is the maximum amount of
data that a Data Link Layer (Layer 2) frame such as Ethernet can transport
SPECIALIST (BTCS) - FACILITIES SECTION EXAM
QUESTIONS AND ANSWERS GRADED A+
2026/2027
Power usage effectiveness (PUE) - ANSWER -The ratio of the total amount of
power that might be used by the headend or hub, to the power required for the
critical or IT equipment--includes power used for lighting, cooling systems, power
distribution.
PUE - ANSWER -total facility power used/total consumed power by IT
equipment
Carbon Usage Effectiveness (CUE) - ANSWER -a ratio of the total carbon
emissions due to the total energy consumption of the data center compared to the
energy consumption of the data center's servers and IT equipment.
Water Usage Effectiveness (WUE) - ANSWER -a ratio of the annual water usage
to how much energy is being consumed by the IT equipment and servers, and is
expressed in liters/ kilowatt-hour (L/kWh).
2 AWG - ANSWER -gauge of wire should be used inside the facility to bound the
equipment to the ground
National Fire Protection Association - ANSWER -The organization OSHA ask
for help to create workplace electrical safety standards
Overage - ANSWER -can be the result of long-term problems that create swells,
or, overvoltage can be thought of as an extended swell. Overvoltages are also
common in areas where supply transformer tap settings are set incorrectly and
loads were reduced.
Underage - ANSWER -result from long-term problems that create sags. The term
"brownout" describes this problem and has been superseded by the term
"undervoltage." Brownout is ambiguous in that it also refers to commercial power
delivery strategy during periods of extended high demand. Undervoltages can
, create overheating in motors and lead to the failure of non-linear loads such as
computer power supplies.
Power Spike - ANSWER -occurs when the power level rises above normal levels
and then drops back to normal in less than one second.
Power Surge - ANSWER -occurs when the power level rises above normal levels
and stays there for more than one or two seconds.
Power Quality - ANSWER -problems generally indicate that stray frequencies
have entered the power system through bad cords or loose connections.
Red Cable - ANSWER -cable used in the upstream path
Humidity and temperature - ANSWER -The two metrics the HVAC system is
controlling in a facility.
Ethernet - ANSWER -The standard is taking over for transport of digital signal in
a headend.
Time-Division Multiple Access (TDMA) - ANSWER -The multiplexing is used
by docsis 3.0 modems for upstream communications
satmux - ANSWER -places digital programming into one channel
Decimal - ANSWER -Is base 10 which equals 10 symbols/numerals or 0 to 9.
Hexadecimal - ANSWER -Is base 16 which equals 16 symbols--0-9 and A-F.
Binary - ANSWER -Is base 2 which equals 2 symbols, 0 to 1, referred to as off
and on in digital.
Preamble - ANSWER -Allows time for the receiver (of an Ethernet frame) in each
node to synchronize the receive data clock to the transmit data clock.
Start Frame Deliminator (SFD) - ANSWER -indicates the next byte is the start of
the frame
Maximum Transmission Unit (MTU) - ANSWER -is the maximum amount of
data that a Data Link Layer (Layer 2) frame such as Ethernet can transport
