CDC MODULE 2 EXAM QUESTIONS WITH VERIFIED ANSWERS
LATEST UPDATE 2026
(M2L5) Within the ETVS architecture, how many multiplexed channels can a single
TMU/CMU support? - Answers A total of 120 multiplexed channels when fully
configured.
(M2L1) What is the primary function of a resistor in a basic electronic circuit? -
Answers To limit or oppose the flow of current.
(M2L4) What is the maximum detection range of the AN/FMQ-19's Lightning
Detector subsystem? - Answers A 30 nautical mile radius from the sensor's location.
(M2L2) The AN/PRC-167 manpack radio is powered by which standard military
battery? - Answers The BB-2590/U rechargeable battery.
(M2L2) What feature of the AN/PRC-163 sets it apart from the single-channel PRC-
152A? - Answers It is a dual-channel radio, allowing monitoring of two different
networks.
(M2L3) What is the maximum number of aircraft a single TACAN station can
provide information to simultaneously? - Answers 100 aircraft at a time, out to a line-
of-sight distance of 200 NM.
(M2L2) What is the function of a transmitter's Automatic Power Control (APC)
circuit? - Answers It acts as a feedback circuit to monitor and maintain a stable
output power.
(M2L2) What feature on the side of the AN/PRC-163 allows for hardware expansion?
- Answers An external mission module port for adding ISR video receivers.
(M2L1) What does Engineering Notation use to represent specific powers of ten? -
Answers Specific metric prefixes (like kilo or milli) to express large or small values.
(M2L1) Which power supply circuit component ensures a constant and precise DC
output voltage, regardless of input variations? - Answers The Regulator, which can
be either a linear or switching type.
(M2L3) What two pieces of navigational information does a TACAN ground station
provide? - Answers Bearing and distance (DME) information to the interrogating
aircraft.
(M2L6) What is a primary consequence of creating micro-bends in a fiber optic
cable? - Answers Signal attenuation and potential connectivity issues due to light
scattering.
, (M2L5) What is a feature of the maintenance position within the ETVS central
equipment? - Answers It can be configured to perform the same functions as an
operator position.
(M2L1) Convert 0.0045 into scientific notation. How many places do you need to
move the decimal, and in what direction? - Answers 3 places to the right, resulting in
4.5 x 10⁻³.
(M2L2) What is the function of the Band-Pass Filter in the CM-350's final output
stage? - Answers To remove harmonics and noise so only the desired frequency band
is sent.
(M2L2) If a transmitter's noise levels are "80 dB down," what does this indicate? -
Answers The unwanted noise power is extremely low compared to the main signal
power.
(M2L6) A solder defect that appears dull, lumpy, and convex is known as what? -
Answers A cold joint, which indicates insufficient heat was applied.
(M2L3) A VORTAC facility combines which two primary navigation systems? -
Answers A VOR (VHF Omnidirectional Range) and a TACAN (Tactical Air
Navigation).
(M2L4) Which of the following is one of the four key parameters that define
temperature and dew point? - Answers Temperature, which is a measure of the
average kinetic energy of air molecules.
(M2L3) How is the Selex 2100 equipment typically configured inside the shelter? -
Answers It is housed within a single 19-inch equipment rack containing units A1-
A10.
(M2L2) Which NSA-certified crypto architecture is featured in the AN/PRC-167
radio? - Answers Denali®-based Type 1 Suite A/B, for Crypto Modernization.
(M2L3) What is an advantage of assigning different frequencies to facing Selex 2100
ILS systems? - Answers It eliminates the risk of co-channel interference and
simplifies deconfliction.
(M2L2) Which wideband networking waveform is supported by the AN/PRC-152A? -
Answers SRW (Soldier Radio Waveform) for ad-hoc networks.
(M2L4) What is the role of the AN/TMS-2 Portable Doppler Radar (PDR) in military
operations? - Answers To provide weather data for resource protection and mission
success.
LATEST UPDATE 2026
(M2L5) Within the ETVS architecture, how many multiplexed channels can a single
TMU/CMU support? - Answers A total of 120 multiplexed channels when fully
configured.
(M2L1) What is the primary function of a resistor in a basic electronic circuit? -
Answers To limit or oppose the flow of current.
(M2L4) What is the maximum detection range of the AN/FMQ-19's Lightning
Detector subsystem? - Answers A 30 nautical mile radius from the sensor's location.
(M2L2) The AN/PRC-167 manpack radio is powered by which standard military
battery? - Answers The BB-2590/U rechargeable battery.
(M2L2) What feature of the AN/PRC-163 sets it apart from the single-channel PRC-
152A? - Answers It is a dual-channel radio, allowing monitoring of two different
networks.
(M2L3) What is the maximum number of aircraft a single TACAN station can
provide information to simultaneously? - Answers 100 aircraft at a time, out to a line-
of-sight distance of 200 NM.
(M2L2) What is the function of a transmitter's Automatic Power Control (APC)
circuit? - Answers It acts as a feedback circuit to monitor and maintain a stable
output power.
(M2L2) What feature on the side of the AN/PRC-163 allows for hardware expansion?
- Answers An external mission module port for adding ISR video receivers.
(M2L1) What does Engineering Notation use to represent specific powers of ten? -
Answers Specific metric prefixes (like kilo or milli) to express large or small values.
(M2L1) Which power supply circuit component ensures a constant and precise DC
output voltage, regardless of input variations? - Answers The Regulator, which can
be either a linear or switching type.
(M2L3) What two pieces of navigational information does a TACAN ground station
provide? - Answers Bearing and distance (DME) information to the interrogating
aircraft.
(M2L6) What is a primary consequence of creating micro-bends in a fiber optic
cable? - Answers Signal attenuation and potential connectivity issues due to light
scattering.
, (M2L5) What is a feature of the maintenance position within the ETVS central
equipment? - Answers It can be configured to perform the same functions as an
operator position.
(M2L1) Convert 0.0045 into scientific notation. How many places do you need to
move the decimal, and in what direction? - Answers 3 places to the right, resulting in
4.5 x 10⁻³.
(M2L2) What is the function of the Band-Pass Filter in the CM-350's final output
stage? - Answers To remove harmonics and noise so only the desired frequency band
is sent.
(M2L2) If a transmitter's noise levels are "80 dB down," what does this indicate? -
Answers The unwanted noise power is extremely low compared to the main signal
power.
(M2L6) A solder defect that appears dull, lumpy, and convex is known as what? -
Answers A cold joint, which indicates insufficient heat was applied.
(M2L3) A VORTAC facility combines which two primary navigation systems? -
Answers A VOR (VHF Omnidirectional Range) and a TACAN (Tactical Air
Navigation).
(M2L4) Which of the following is one of the four key parameters that define
temperature and dew point? - Answers Temperature, which is a measure of the
average kinetic energy of air molecules.
(M2L3) How is the Selex 2100 equipment typically configured inside the shelter? -
Answers It is housed within a single 19-inch equipment rack containing units A1-
A10.
(M2L2) Which NSA-certified crypto architecture is featured in the AN/PRC-167
radio? - Answers Denali®-based Type 1 Suite A/B, for Crypto Modernization.
(M2L3) What is an advantage of assigning different frequencies to facing Selex 2100
ILS systems? - Answers It eliminates the risk of co-channel interference and
simplifies deconfliction.
(M2L2) Which wideband networking waveform is supported by the AN/PRC-152A? -
Answers SRW (Soldier Radio Waveform) for ad-hoc networks.
(M2L4) What is the role of the AN/TMS-2 Portable Doppler Radar (PDR) in military
operations? - Answers To provide weather data for resource protection and mission
success.
