NENA ENP Exam Study Guide –
Practice Questions with
Verified Answers. GRADED A+.
Latest 2026/2027 Update
Public Safety Land Mobile radio (LMR) is licenced by who? - Answer✔✔-The
Federal Communications Commission (FCC)
In a radio system, voice is converted into what? - Answer✔✔-Electrical Energy
(Waves)
Band - Answer✔✔-A small section of the spectrum of radio communications
frequencies
What is a radio channel? - Answer✔✔-Pairs of Frequencies
Who assigns radio channels? - Answer✔✔-The FCC
VHF - Answer✔✔-30-300 MHz
UHF - Answer✔✔-300-3000MHz
,VHF Low Band - Answer✔✔-39-72MHz
VHF Low Band - Answer✔✔-travels greater distances than high frequencies.
There may be interference or atmospheric skip
VHF High Band - Answer✔✔-150-170 MHz
VHF High Band - Answer✔✔-Often used by rural agencies, provide better
coverage in uneven terrane like wooded areas.
Ultra high Frequency (UHF) - Answer✔✔-400 MHz, 500 MHZ, 800MHz, and 900
MHz
Ultra High Frequency (UHF) - Answer✔✔-These radio signals do not travel as
far, but penetrate structures better than lower frequencies.
Trunked Radio - Answer✔✔-A method used to conserve precious radio
spectrum.
Trunked Radio - Answer✔✔-Users share the same radio frequencies . Talk
groups are assigned.
Conventional Radio - Answer✔✔-Channel use is dedicated, like getting in like at
the bank.
,Simulcast - Answer✔✔-Multiple transmitter sites all transmitting on the same
frequency at the same time
Radio Over IP (ROIP) - Answer✔✔-The linking and control of radio system sites
over a data network
FirstNet - Answer✔✔-Entity established to build out a National Public Safety
Broadband Network
Multicast - Answer✔✔-Multiple repeater sites; each transmits using different
frequency pairs at each site
Interoperability - Answer✔✔-Ability of all radio users to communicate
regardless of band
Base Station - Answer✔✔-Wireless communications station installed at a fixed
location
Repeater - Answer✔✔-Base station using separate transmit and receive
frequencies to "repeat" incoming audio from one user to all users
P25 - Answer✔✔-Initiated by APCO to create a national standard for digital
radio to enable interoperability between public safety agencies using the same
frequencies but not necessarily the same digital vendor.
FirstNet - Answer✔✔-Created by congress as a part of the middle class tax
relief ac of 2012 to construct a Nationwide Public Safety Broadband network
(NPSBN)
, FirstNet - Answer✔✔-Network will provide mission-critical broadband
communications for first responders on 700 MHz LTE
Copper - Answer✔✔-2 wire or 4 wire circuit carrying an electrical signal
Fiber Optic - Answer✔✔-A strand of glass carrying an optical signal
Selective Routing - Answer✔✔-The process by which 911 calls/messages are
routed to the appropriate PSAP based on the caller's location information
Default Routing - Answer✔✔-The capacity to route a 911 call to a designated
PSAP when the incoming 911 call cannot be selectively routed due to an ANI
failure or other cause.
Alternate Routing - Answer✔✔-The capability of touring 911 calls to a
designated alternate location if all 911 trunks to a primary PSAP are busy or out
of service.
Tandem to Tandem - Answer✔✔-Inter-Selective Router calling is often used to
transfer calls between PSAPS that are served by separate selective routers
Dual Tandems - Answer✔✔-When a single PSAP is served by two or more
separate selective routers
Area Code - Answer✔✔-Number Plan Area (NPA) is indicated by the first three
digits of a 10-digit phone number
Practice Questions with
Verified Answers. GRADED A+.
Latest 2026/2027 Update
Public Safety Land Mobile radio (LMR) is licenced by who? - Answer✔✔-The
Federal Communications Commission (FCC)
In a radio system, voice is converted into what? - Answer✔✔-Electrical Energy
(Waves)
Band - Answer✔✔-A small section of the spectrum of radio communications
frequencies
What is a radio channel? - Answer✔✔-Pairs of Frequencies
Who assigns radio channels? - Answer✔✔-The FCC
VHF - Answer✔✔-30-300 MHz
UHF - Answer✔✔-300-3000MHz
,VHF Low Band - Answer✔✔-39-72MHz
VHF Low Band - Answer✔✔-travels greater distances than high frequencies.
There may be interference or atmospheric skip
VHF High Band - Answer✔✔-150-170 MHz
VHF High Band - Answer✔✔-Often used by rural agencies, provide better
coverage in uneven terrane like wooded areas.
Ultra high Frequency (UHF) - Answer✔✔-400 MHz, 500 MHZ, 800MHz, and 900
MHz
Ultra High Frequency (UHF) - Answer✔✔-These radio signals do not travel as
far, but penetrate structures better than lower frequencies.
Trunked Radio - Answer✔✔-A method used to conserve precious radio
spectrum.
Trunked Radio - Answer✔✔-Users share the same radio frequencies . Talk
groups are assigned.
Conventional Radio - Answer✔✔-Channel use is dedicated, like getting in like at
the bank.
,Simulcast - Answer✔✔-Multiple transmitter sites all transmitting on the same
frequency at the same time
Radio Over IP (ROIP) - Answer✔✔-The linking and control of radio system sites
over a data network
FirstNet - Answer✔✔-Entity established to build out a National Public Safety
Broadband Network
Multicast - Answer✔✔-Multiple repeater sites; each transmits using different
frequency pairs at each site
Interoperability - Answer✔✔-Ability of all radio users to communicate
regardless of band
Base Station - Answer✔✔-Wireless communications station installed at a fixed
location
Repeater - Answer✔✔-Base station using separate transmit and receive
frequencies to "repeat" incoming audio from one user to all users
P25 - Answer✔✔-Initiated by APCO to create a national standard for digital
radio to enable interoperability between public safety agencies using the same
frequencies but not necessarily the same digital vendor.
FirstNet - Answer✔✔-Created by congress as a part of the middle class tax
relief ac of 2012 to construct a Nationwide Public Safety Broadband network
(NPSBN)
, FirstNet - Answer✔✔-Network will provide mission-critical broadband
communications for first responders on 700 MHz LTE
Copper - Answer✔✔-2 wire or 4 wire circuit carrying an electrical signal
Fiber Optic - Answer✔✔-A strand of glass carrying an optical signal
Selective Routing - Answer✔✔-The process by which 911 calls/messages are
routed to the appropriate PSAP based on the caller's location information
Default Routing - Answer✔✔-The capacity to route a 911 call to a designated
PSAP when the incoming 911 call cannot be selectively routed due to an ANI
failure or other cause.
Alternate Routing - Answer✔✔-The capability of touring 911 calls to a
designated alternate location if all 911 trunks to a primary PSAP are busy or out
of service.
Tandem to Tandem - Answer✔✔-Inter-Selective Router calling is often used to
transfer calls between PSAPS that are served by separate selective routers
Dual Tandems - Answer✔✔-When a single PSAP is served by two or more
separate selective routers
Area Code - Answer✔✔-Number Plan Area (NPA) is indicated by the first three
digits of a 10-digit phone number
