ENP STUDY | NEW 2025/2026 UPDATE | QUESTIONS
AND ANSWERS | WITH COMPLETE SOLUTION!!
MSAG Answer - Master Street Address Guide
Enhanced 911 has what 3 features Answer - Selective Routing
ANI
ALI
Nena Motto Answer - One Nation, One Number
ESZ Answer - Emergency Service Zones - Agency response area determined by
address ESN's are within ESZ areas
ESN Answer - Assigned to addresses or cell towers within an Emergency Service
Zone
MSC Answer - the wireless equivalent of a Central Office
Psuedo ANI Answer - a generic term for a phone number that is used for 911
routing
, NCAS Answer - Non-callpath Associated Signaling - the PSAP sends back a
query requesting the CB number
Selective Transfer Answer - Controlled by the ESN service area; allows one-
button transfer to agencies that support that location in that ESN. Transfer of a
call to police, fire, ems with one-button
Fixed Transfer Answer - Basically a transfer to a fixed number that doesn't
change such as Poison Control
Alternative Routing Answer - Secondary PSAP - accomplished by a switch, or a
busy signal on 9-1-1, or damaged equipment resulting in 911 failure
Router to Router Transfer Answer - From one geographic area to another such
as from RSO PSAP to San Bernardino PSAP. Can be in the same Tandum or to
another switch entirely
ESINet Answer - Emergency Services Internet Protocol Network - includes the
network but not the NGCS NG911 Core Services
ECRF Answer - provides spacial routing to the correct PSAP. Maps a pathway for
a 911 call to move from server to server within the ESINet to the correct PSAP.
Utilizes a URI Uniform Resource Identifier to route the call to the appropriate
PSAP
ESRP Answer - routes call to the next hop routing based on location and 911
policy. Determines the next hop on the map from the ECRF to the next server.
The terminating ESRP routes the call to the call taker.
AND ANSWERS | WITH COMPLETE SOLUTION!!
MSAG Answer - Master Street Address Guide
Enhanced 911 has what 3 features Answer - Selective Routing
ANI
ALI
Nena Motto Answer - One Nation, One Number
ESZ Answer - Emergency Service Zones - Agency response area determined by
address ESN's are within ESZ areas
ESN Answer - Assigned to addresses or cell towers within an Emergency Service
Zone
MSC Answer - the wireless equivalent of a Central Office
Psuedo ANI Answer - a generic term for a phone number that is used for 911
routing
, NCAS Answer - Non-callpath Associated Signaling - the PSAP sends back a
query requesting the CB number
Selective Transfer Answer - Controlled by the ESN service area; allows one-
button transfer to agencies that support that location in that ESN. Transfer of a
call to police, fire, ems with one-button
Fixed Transfer Answer - Basically a transfer to a fixed number that doesn't
change such as Poison Control
Alternative Routing Answer - Secondary PSAP - accomplished by a switch, or a
busy signal on 9-1-1, or damaged equipment resulting in 911 failure
Router to Router Transfer Answer - From one geographic area to another such
as from RSO PSAP to San Bernardino PSAP. Can be in the same Tandum or to
another switch entirely
ESINet Answer - Emergency Services Internet Protocol Network - includes the
network but not the NGCS NG911 Core Services
ECRF Answer - provides spacial routing to the correct PSAP. Maps a pathway for
a 911 call to move from server to server within the ESINet to the correct PSAP.
Utilizes a URI Uniform Resource Identifier to route the call to the appropriate
PSAP
ESRP Answer - routes call to the next hop routing based on location and 911
policy. Determines the next hop on the map from the ECRF to the next server.
The terminating ESRP routes the call to the call taker.
