NENA ENP Exam Fully Solved – Complete
Exam Study Guide with Verified Answers
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Full or Partial loss of service to a PSAP - ANSWER -an interruption or break in
the communication links causes the full or partial loss of service to a PSAP as a
result of failure in the communications equipment or the cutting of a
telecommunications cable
Loss of a PSAP Facility - ANSWER -Results when the facility housing the PSAP
is destroyed or so severely damaged that the operation of the PSAP is not possible.
This can also result from the threat of such action or from an event that requires
evacuation of personnel from the building
Isolation of Central Office - ANSWER -Occurs when the links between the
central office serving a PSAP and the remainder of the communications network
are inturrupted
Isolation of an End Office - ANSWER -Occurs when an end office that feeds the
911 broken system has its communication links to the tandem or selective router
broken
Loss of central office - ANSWER -occurs when the communications equipment
located within the central office fails as a result of malfunction, water damage, fire,
etc.
Loss of tandem switch - ANSWER -results in the loss oc call routing and ANI
service
Loss of database management system - ANSWER -can result from the failure of
any of the computers serving the system; interruption of cable links between the
data systems and ALI nodes; or damage to the building housing th dbms
,Emergency Services IP Network (ESInet) - ANSWER -Secure, reliable, private,
managed IP network for emergency services
ESINET - ANSWER -provides infrastructure for i3 core functional processes,
NG911 services, and interoperable agencies
ESINET - ANSWER -Interconnected at a local, regional, state, Federal, national,
and international levels to form an IP based inter-network (network of networks)
Geographic Information System (GIS) - ANSWER -a system for capturing,
storing, displaying, analyzing, and managing data and associated attributes which
are specially referenced
Global Positioning System (GPS) - ANSWER -a space-based navigation system
that provides location and time information in all weather conditions anywhere on
or near the earth where there is an unobstructed line of sight to four or more GPS
satellites
Interexchange Carrier (IEC or IXC) - ANSWER -Provides services to the public
between local exchanges on an intra or interLATA basis.
Local Exchange - ANSWER -Refers to the service provided by an end office.
Exchange Area - ANSWER -refers to the geographic area in which charges and
services are uniform.
Local Exchange Carrier (LEC) - ANSWER -Provides intraLATA
telecommunications within a franchised area.
Local Loop - ANSWER -The wires that run from the subscriber's telephone or
telephone system back to the central office
, Central Office (CO) - ANSWER -usually refers to a local switching system that
connects lines and trunks and sometimes refers to the telecommunications service
provider building in which switching equipment is housed.
End Office or Class 5 Office - ANSWER -A switching system within a LATA or
market area where customer lines are terminated for the purpose of interconnection
to each other and to trunks
Access Tandem - ANSWER -A switching system that provides traffic
concentration and distributes calls between end offices or to an interexchange
carrier
Facility - ANSWER -An all encompassing term used by telephone companies that
can apply to any one of the elements of physical telephone plant that is required to
provide service.
Voice Over Internet Protocol (VOIP) - ANSWER -an IP telephony term for a set
of capabilities used to manage information in a digital form in discrete packets
rather than by using the traditional legacy circuit switch protocols of the PSTN.
VSP stands for - ANSWER -Voip Service Provider
Copper Wire - ANSWER -twisted pair
Fiber Optics - ANSWER -signals carried by light beams over glass fibers
Microwave - ANSWER -provides a way of transmitting telephone, fax, video, and
data conversation using electromagnetic waves in the radio frequency spectrum.
Problems include fade and transmission interference due to weather conditions
Satellite - ANSWER -a specialized form of microwave transmission where the
tower is in the sky.
Coaxial cable - ANSWER -developed to provide a more effective way to shield
wires from outside electrical interference and radio signals. Composed of a
, conducting wire (core conductor), insulated in the center of another cylindrical
conducting wire known as a shield
Selective Routing - ANSWER -the capability to transfer a 911 call to a response
agency by operation of one of the several buttons typically designated as police,
fire, and emergency medical; based on the ESN of the caller
Call Conferencing (aka three way calling or conference transfer) - ANSWER -
The capability to bridge a third party onto an existing call
Button Transfer (aka speed dialing or fixed transfer) - ANSWER -The capability
of a psap attendant to transfer a 911 call to a predetermined location by activating a
single button
Alternate routing - ANSWER -the capability of routing 911 calls to a designated
alternate location if all 911 trunks are busy or out of service. may be activated
upon request or automatically if detectable when 911 equipment fails or the PSAP
is disabled.
Default Routing - ANSWER -the capability to route 911 call to a designated
PSAP when the incoming 911 call cannot be selectively routed due to an ANI
failure or other cause
911 Direct Trunking - ANSWER -in many basic 911 systems, this implies the 911
call routes through the originating serving central office directly to the psap, not
through an e911 selective router
Signalling/Transport - ANSWER -sending and receiving of control information
between the parts of a telecommunications network, determines message status,
routing, handline, control functions, billing and access capabilities to other
networks
Centralized Automatic Message Accounting (CAMA) - ANSWER -originally
used for toll call billing. uses a switch at a central location to serve as a hub for
several central offices to collect ANI, register call duration, and route calls.
Exam Study Guide with Verified Answers
| Newest Version. A+
Full or Partial loss of service to a PSAP - ANSWER -an interruption or break in
the communication links causes the full or partial loss of service to a PSAP as a
result of failure in the communications equipment or the cutting of a
telecommunications cable
Loss of a PSAP Facility - ANSWER -Results when the facility housing the PSAP
is destroyed or so severely damaged that the operation of the PSAP is not possible.
This can also result from the threat of such action or from an event that requires
evacuation of personnel from the building
Isolation of Central Office - ANSWER -Occurs when the links between the
central office serving a PSAP and the remainder of the communications network
are inturrupted
Isolation of an End Office - ANSWER -Occurs when an end office that feeds the
911 broken system has its communication links to the tandem or selective router
broken
Loss of central office - ANSWER -occurs when the communications equipment
located within the central office fails as a result of malfunction, water damage, fire,
etc.
Loss of tandem switch - ANSWER -results in the loss oc call routing and ANI
service
Loss of database management system - ANSWER -can result from the failure of
any of the computers serving the system; interruption of cable links between the
data systems and ALI nodes; or damage to the building housing th dbms
,Emergency Services IP Network (ESInet) - ANSWER -Secure, reliable, private,
managed IP network for emergency services
ESINET - ANSWER -provides infrastructure for i3 core functional processes,
NG911 services, and interoperable agencies
ESINET - ANSWER -Interconnected at a local, regional, state, Federal, national,
and international levels to form an IP based inter-network (network of networks)
Geographic Information System (GIS) - ANSWER -a system for capturing,
storing, displaying, analyzing, and managing data and associated attributes which
are specially referenced
Global Positioning System (GPS) - ANSWER -a space-based navigation system
that provides location and time information in all weather conditions anywhere on
or near the earth where there is an unobstructed line of sight to four or more GPS
satellites
Interexchange Carrier (IEC or IXC) - ANSWER -Provides services to the public
between local exchanges on an intra or interLATA basis.
Local Exchange - ANSWER -Refers to the service provided by an end office.
Exchange Area - ANSWER -refers to the geographic area in which charges and
services are uniform.
Local Exchange Carrier (LEC) - ANSWER -Provides intraLATA
telecommunications within a franchised area.
Local Loop - ANSWER -The wires that run from the subscriber's telephone or
telephone system back to the central office
, Central Office (CO) - ANSWER -usually refers to a local switching system that
connects lines and trunks and sometimes refers to the telecommunications service
provider building in which switching equipment is housed.
End Office or Class 5 Office - ANSWER -A switching system within a LATA or
market area where customer lines are terminated for the purpose of interconnection
to each other and to trunks
Access Tandem - ANSWER -A switching system that provides traffic
concentration and distributes calls between end offices or to an interexchange
carrier
Facility - ANSWER -An all encompassing term used by telephone companies that
can apply to any one of the elements of physical telephone plant that is required to
provide service.
Voice Over Internet Protocol (VOIP) - ANSWER -an IP telephony term for a set
of capabilities used to manage information in a digital form in discrete packets
rather than by using the traditional legacy circuit switch protocols of the PSTN.
VSP stands for - ANSWER -Voip Service Provider
Copper Wire - ANSWER -twisted pair
Fiber Optics - ANSWER -signals carried by light beams over glass fibers
Microwave - ANSWER -provides a way of transmitting telephone, fax, video, and
data conversation using electromagnetic waves in the radio frequency spectrum.
Problems include fade and transmission interference due to weather conditions
Satellite - ANSWER -a specialized form of microwave transmission where the
tower is in the sky.
Coaxial cable - ANSWER -developed to provide a more effective way to shield
wires from outside electrical interference and radio signals. Composed of a
, conducting wire (core conductor), insulated in the center of another cylindrical
conducting wire known as a shield
Selective Routing - ANSWER -the capability to transfer a 911 call to a response
agency by operation of one of the several buttons typically designated as police,
fire, and emergency medical; based on the ESN of the caller
Call Conferencing (aka three way calling or conference transfer) - ANSWER -
The capability to bridge a third party onto an existing call
Button Transfer (aka speed dialing or fixed transfer) - ANSWER -The capability
of a psap attendant to transfer a 911 call to a predetermined location by activating a
single button
Alternate routing - ANSWER -the capability of routing 911 calls to a designated
alternate location if all 911 trunks are busy or out of service. may be activated
upon request or automatically if detectable when 911 equipment fails or the PSAP
is disabled.
Default Routing - ANSWER -the capability to route 911 call to a designated
PSAP when the incoming 911 call cannot be selectively routed due to an ANI
failure or other cause
911 Direct Trunking - ANSWER -in many basic 911 systems, this implies the 911
call routes through the originating serving central office directly to the psap, not
through an e911 selective router
Signalling/Transport - ANSWER -sending and receiving of control information
between the parts of a telecommunications network, determines message status,
routing, handline, control functions, billing and access capabilities to other
networks
Centralized Automatic Message Accounting (CAMA) - ANSWER -originally
used for toll call billing. uses a switch at a central location to serve as a hub for
several central offices to collect ANI, register call duration, and route calls.
