NENA ENP Exam 2026–2027: 150 Practice
Questions & Answers with Rationales |
Emergency Number Professional Certification
Study Guide
,Q1. What is the primary purpose of a Public Safety Answering Point (PSAP)?
A. To maintain cellular networks
B. To receive and process emergency calls
C. To provide commercial telephone services
D. To manage hospital admissions
Answer: B. To receive and process emergency calls
Rationale: A PSAP is a designated facility responsible for receiving emergency calls and
processing or routing them to the appropriate emergency services.
Q2. What does ANI primarily provide to a 9-1-1 call taker?
A. The caller's medical history
B. The caller's telephone number
C. The caller's exact spoken location
D. The responding unit's location
Answer: B. The caller's telephone number
Rationale: Automatic Number Identification (ANI) supplies the telephone number associated
with the incoming call.
Q3. What is the primary purpose of Automatic Location Identification (ALI)?
A. To identify the telephone carrier
B. To identify the caller's emergency location
C. To identify the call taker's workstation
D. To identify the responding officer
Answer: B. To identify the caller's emergency location
Rationale: ALI provides location information associated with an emergency telephone number,
subject to the type of service and available location data.
Q4. Which system traditionally uses the caller's telephone number to retrieve location
information?
A. ALI system
B. CAD system
C. Radio system
D. GIS editing system
Answer: A. ALI system
,Rationale: Traditional 9-1-1 systems use the ANI telephone number as a key to retrieve
corresponding ALI records.
Q5. What is the principal function of a selective router?
A. Store CAD incidents
B. Determine the appropriate PSAP destination for an emergency call
C. Record radio transmissions
D. Provide medical advice
Answer: B. Determine the appropriate PSAP destination for an emergency call
Rationale: Selective routing uses routing information to direct emergency calls to the
appropriate PSAP.
Q6. What does PSAP stand for?
A. Public Safety Answering Point
B. Public Service Access Platform
C. Primary Safety Administration Point
D. Public Security Answering Platform
Answer: A. Public Safety Answering Point
Rationale: PSAP is the standard term for a facility designated to receive emergency
communications.
Q7. Which function is most closely associated with a call taker?
A. Receiving information from the caller
B. Maintaining telephone switching equipment exclusively
C. Installing fiber-optic cable
D. Managing utility billing
Answer: A. Receiving information from the caller
Rationale: Call takers obtain essential information from callers and initiate the emergency
response process.
Q8. What is the primary purpose of CAD in a PSAP?
A. Routing telephone calls between carriers
B. Managing and dispatching incident information
C. Replacing GIS databases
D. Providing cellular coverage
, Answer: B. Managing and dispatching incident information
Rationale: Computer-Aided Dispatch (CAD) supports incident creation, information
management, resource assignment, and dispatch functions.
Q9. Why is accurate address information important in emergency communications?
A. It reduces telephone taxes
B. It helps responders reach the correct location
C. It eliminates the need for call takers
D. It prevents all dropped calls
Answer: B. It helps responders reach the correct location
Rationale: Accurate location information is fundamental to effective emergency response.
Q10. What is call transfer capability used for in a PSAP?
A. Moving a caller to the appropriate emergency service or agency
B. Changing the caller's telephone number
C. Modifying the ALI database automatically
D. Replacing the CAD system
Answer: A. Moving a caller to the appropriate emergency service or agency
Rationale: Transfer functionality allows a call to be sent to another appropriate PSAP, agency, or
emergency service.
Q11. What does CAMA traditionally stand for?
A. Centralized Automatic Message Accounting
B. Computerized Automatic Message Access
C. Centralized Agency Management Application
D. Call Administration Message Architecture
Answer: A. Centralized Automatic Message Accounting
Rationale: CAMA trunks were historically used to deliver emergency calling information
between telephone network elements and 9-1-1 systems.
Q12. Which technology is strongly associated with modern NG9-1-1 architecture?
A. IP-based networking
B. Analog-only switching
C. Rotary dialing
D. Manual telephone exchanges
Questions & Answers with Rationales |
Emergency Number Professional Certification
Study Guide
,Q1. What is the primary purpose of a Public Safety Answering Point (PSAP)?
A. To maintain cellular networks
B. To receive and process emergency calls
C. To provide commercial telephone services
D. To manage hospital admissions
Answer: B. To receive and process emergency calls
Rationale: A PSAP is a designated facility responsible for receiving emergency calls and
processing or routing them to the appropriate emergency services.
Q2. What does ANI primarily provide to a 9-1-1 call taker?
A. The caller's medical history
B. The caller's telephone number
C. The caller's exact spoken location
D. The responding unit's location
Answer: B. The caller's telephone number
Rationale: Automatic Number Identification (ANI) supplies the telephone number associated
with the incoming call.
Q3. What is the primary purpose of Automatic Location Identification (ALI)?
A. To identify the telephone carrier
B. To identify the caller's emergency location
C. To identify the call taker's workstation
D. To identify the responding officer
Answer: B. To identify the caller's emergency location
Rationale: ALI provides location information associated with an emergency telephone number,
subject to the type of service and available location data.
Q4. Which system traditionally uses the caller's telephone number to retrieve location
information?
A. ALI system
B. CAD system
C. Radio system
D. GIS editing system
Answer: A. ALI system
,Rationale: Traditional 9-1-1 systems use the ANI telephone number as a key to retrieve
corresponding ALI records.
Q5. What is the principal function of a selective router?
A. Store CAD incidents
B. Determine the appropriate PSAP destination for an emergency call
C. Record radio transmissions
D. Provide medical advice
Answer: B. Determine the appropriate PSAP destination for an emergency call
Rationale: Selective routing uses routing information to direct emergency calls to the
appropriate PSAP.
Q6. What does PSAP stand for?
A. Public Safety Answering Point
B. Public Service Access Platform
C. Primary Safety Administration Point
D. Public Security Answering Platform
Answer: A. Public Safety Answering Point
Rationale: PSAP is the standard term for a facility designated to receive emergency
communications.
Q7. Which function is most closely associated with a call taker?
A. Receiving information from the caller
B. Maintaining telephone switching equipment exclusively
C. Installing fiber-optic cable
D. Managing utility billing
Answer: A. Receiving information from the caller
Rationale: Call takers obtain essential information from callers and initiate the emergency
response process.
Q8. What is the primary purpose of CAD in a PSAP?
A. Routing telephone calls between carriers
B. Managing and dispatching incident information
C. Replacing GIS databases
D. Providing cellular coverage
, Answer: B. Managing and dispatching incident information
Rationale: Computer-Aided Dispatch (CAD) supports incident creation, information
management, resource assignment, and dispatch functions.
Q9. Why is accurate address information important in emergency communications?
A. It reduces telephone taxes
B. It helps responders reach the correct location
C. It eliminates the need for call takers
D. It prevents all dropped calls
Answer: B. It helps responders reach the correct location
Rationale: Accurate location information is fundamental to effective emergency response.
Q10. What is call transfer capability used for in a PSAP?
A. Moving a caller to the appropriate emergency service or agency
B. Changing the caller's telephone number
C. Modifying the ALI database automatically
D. Replacing the CAD system
Answer: A. Moving a caller to the appropriate emergency service or agency
Rationale: Transfer functionality allows a call to be sent to another appropriate PSAP, agency, or
emergency service.
Q11. What does CAMA traditionally stand for?
A. Centralized Automatic Message Accounting
B. Computerized Automatic Message Access
C. Centralized Agency Management Application
D. Call Administration Message Architecture
Answer: A. Centralized Automatic Message Accounting
Rationale: CAMA trunks were historically used to deliver emergency calling information
between telephone network elements and 9-1-1 systems.
Q12. Which technology is strongly associated with modern NG9-1-1 architecture?
A. IP-based networking
B. Analog-only switching
C. Rotary dialing
D. Manual telephone exchanges
