ENP EMERGENCY NUMBER
PROFESSIONAL EXAM COMPREHENSIVE
TEST PAPER 2026 QUESTIONS WITH
ANSWERS GRADED A+
⫸ What is Packet Switching?
A. The transmissions of a call/caller using circuit switch technology
B. The conversion of an analog signal to a digital signal
C. Binary encoded information that is routed between input and output
ports using TDM (Time Division Multiplexing)
D. Used in the next generation network to transmit a caller's voice using
VoIP on a variety of different data transports Answer: D. Used in the
next generation network to transmit a caller's voice using VoIP on a
variety of different data transports - ENP Study Guide version 5.0 and
5.1 - Page 35
⫸ Why do DTMF tones differ from MF tones?
A. DTMF tones require a combination of two tones to represent a single
digit, while MF only requires one
B. DTMF tones represent user-to-the-network signaling, while MF tones
are control signals within the network
C. DTMF tones use a combination of six different frequencies, while
MF tones use eight
, D. There is no difference between the two types of tones Answer: B.
DTMF tones represent user-to-the-network signaling, while MF tones
are control signals within the network - ENP Study Guide version 5.0 -
Page 35 - version 5.1 - Page 33
⫸ The wireless network equivalent of a
wireline network central office is a:
A. Cellular Central Office
B. Mobile Selective Router
C. Mobile Switching Center
D. Wireless Telephone Office Answer: C. Mobile Switching Center -
ENP Study Guide version 5.0 - Page 56 - version 5.1 - Page 54
⫸ A Phase II wireless call (NCAS) has how many telephone number
digits delivered to the PSAP through the E9-1-1 Wireline Selective
Router?
A. 20 digits
B. 14 digits
C. 10 digits
D. 7 digits Answer: C. 10 digits - ENP Study Guide version 5.0 - Page
57 - version 5.1 - N/A
⫸ The three delivery options for SMS are:
PROFESSIONAL EXAM COMPREHENSIVE
TEST PAPER 2026 QUESTIONS WITH
ANSWERS GRADED A+
⫸ What is Packet Switching?
A. The transmissions of a call/caller using circuit switch technology
B. The conversion of an analog signal to a digital signal
C. Binary encoded information that is routed between input and output
ports using TDM (Time Division Multiplexing)
D. Used in the next generation network to transmit a caller's voice using
VoIP on a variety of different data transports Answer: D. Used in the
next generation network to transmit a caller's voice using VoIP on a
variety of different data transports - ENP Study Guide version 5.0 and
5.1 - Page 35
⫸ Why do DTMF tones differ from MF tones?
A. DTMF tones require a combination of two tones to represent a single
digit, while MF only requires one
B. DTMF tones represent user-to-the-network signaling, while MF tones
are control signals within the network
C. DTMF tones use a combination of six different frequencies, while
MF tones use eight
, D. There is no difference between the two types of tones Answer: B.
DTMF tones represent user-to-the-network signaling, while MF tones
are control signals within the network - ENP Study Guide version 5.0 -
Page 35 - version 5.1 - Page 33
⫸ The wireless network equivalent of a
wireline network central office is a:
A. Cellular Central Office
B. Mobile Selective Router
C. Mobile Switching Center
D. Wireless Telephone Office Answer: C. Mobile Switching Center -
ENP Study Guide version 5.0 - Page 56 - version 5.1 - Page 54
⫸ A Phase II wireless call (NCAS) has how many telephone number
digits delivered to the PSAP through the E9-1-1 Wireline Selective
Router?
A. 20 digits
B. 14 digits
C. 10 digits
D. 7 digits Answer: C. 10 digits - ENP Study Guide version 5.0 - Page
57 - version 5.1 - N/A
⫸ The three delivery options for SMS are:
