33403 – Broadband Systems Questions and
Answers| Latest Update 2027
NCCER 33403 – Broadband Systems Practice Exam
Verified Questions & Answers (2026/2027 Update)
SECTION 1: BROADBAND FUNDAMENTALS & TV SYSTEMS
1. Analog television produces a picture with an aspect ratio (width-to-height) of
_____, whereas digital television aspect ratio is _____.
A. 16:9; 4:3
B. 4:3; 16:9
C. 4:3; 4:3
D. 16:9; 16:9
Correct Answer: B. 4:3; 16:9. Rationale: Analog television used a 4:3 aspect ratio,
while digital television uses a widescreen 16:9 aspect ratio .
2. Originally, when CATV was actually Community Antenna TeleVision, the
broadcast stations would transmit their signals via _____ to a remote
community where it was distributed via coaxial cable to the individual
subscribers, hence Cable Television.
A. Fiber optic cable
B. Microwave
C. Satellite
D. Telephone lines
,Correct Answer: B. Microwave. Rationale: Originally, broadcast stations
transmitted signals via microwave to remote communities for distribution via
coaxial cable .
3. A TVRO signal being distributed over a CATV system is actually a local station,
and the term TVRO stands for _____.
A. Television Reception Only
B. Television Receive Only
C. Total Video Reception Output
D. Transponder Video Relay Operation
Correct Answer: B. Television Receive Only. Rationale: TVRO stands for Television
Receive Only .
4. The system that is typically used within schools, hospitals, and corporate
distribution TV distribution systems is _____.
A. CATV
B. MATV
C. SMATV
D. TVRO
Correct Answer: B. MATV. Rationale: MATV (Master Antenna Television) is the
system typically used within schools, hospitals, and corporate distribution TV
systems .
5. A frequency of 10 million hertz would be expressed as _____.
A. 10 kHz
B. 10 MHz
C. 10 GHz
D. 10 THz
,Correct Answer: B. 10 MHz. Rationale: 10 million hertz is expressed as 10 MHz
(megahertz) .
6. Each television channel in the U.S. is _____ wide.
A. 3 MHz
B. 6 MHz
C. 10 MHz
D. 12 MHz
Correct Answer: B. 6 MHz. Rationale: Each television channel in the U.S. is 6 MHz
wide .
7. The highest frequency band in the broadcast television frequency spectrum is
the _____ band.
A. VHF
B. UHF
C. SHF
D. EHF
Correct Answer: B. UHF. Rationale: The UHF (Ultra High Frequency) band is the
highest frequency band in the broadcast television spectrum .
8. What is the primary purpose of wearing Personal Protective Equipment (PPE)
such as safety glasses and hard hats while performing broadband installation
tasks?
A. To comply with company dress codes only
B. To protect the installer from physical hazards such as flying debris, electrical
shocks, and head impacts during construction or aerial/underground work
C. To improve cellular reception inside customer homes
D. To prevent the cable modem from overheating
, Correct Answer: B. To protect the installer from physical hazards such as flying
debris, electrical shocks, and head impacts during construction or
aerial/underground work. Rationale: Safety is paramount in broadband
installation. PPE safeguards installers against environmental and worksite
hazards, including eye injury from wire clippings and head trauma from tools or
overhead drops .
9. What is broadband?
A. Narrowband signal
B. High-speed internet access
C. Analog-only system
D. Radio-only system
Correct Answer: B. High-speed internet access. Rationale: Broadband provides
high-speed data transmission over multiple technologies .
10. Fiber optic cable transmits data using _____.
A. Electricity
B. Light
C. Magnetism
D. Sound
Correct Answer: B. Light. Rationale: Fiber uses light pulses for high-speed data
transmission .
11. What does ISP stand for?
A. Internet Service Provider
B. Internal Signal Process
C. Internet Safety Protocol
D. Integrated Service Point
Answers| Latest Update 2027
NCCER 33403 – Broadband Systems Practice Exam
Verified Questions & Answers (2026/2027 Update)
SECTION 1: BROADBAND FUNDAMENTALS & TV SYSTEMS
1. Analog television produces a picture with an aspect ratio (width-to-height) of
_____, whereas digital television aspect ratio is _____.
A. 16:9; 4:3
B. 4:3; 16:9
C. 4:3; 4:3
D. 16:9; 16:9
Correct Answer: B. 4:3; 16:9. Rationale: Analog television used a 4:3 aspect ratio,
while digital television uses a widescreen 16:9 aspect ratio .
2. Originally, when CATV was actually Community Antenna TeleVision, the
broadcast stations would transmit their signals via _____ to a remote
community where it was distributed via coaxial cable to the individual
subscribers, hence Cable Television.
A. Fiber optic cable
B. Microwave
C. Satellite
D. Telephone lines
,Correct Answer: B. Microwave. Rationale: Originally, broadcast stations
transmitted signals via microwave to remote communities for distribution via
coaxial cable .
3. A TVRO signal being distributed over a CATV system is actually a local station,
and the term TVRO stands for _____.
A. Television Reception Only
B. Television Receive Only
C. Total Video Reception Output
D. Transponder Video Relay Operation
Correct Answer: B. Television Receive Only. Rationale: TVRO stands for Television
Receive Only .
4. The system that is typically used within schools, hospitals, and corporate
distribution TV distribution systems is _____.
A. CATV
B. MATV
C. SMATV
D. TVRO
Correct Answer: B. MATV. Rationale: MATV (Master Antenna Television) is the
system typically used within schools, hospitals, and corporate distribution TV
systems .
5. A frequency of 10 million hertz would be expressed as _____.
A. 10 kHz
B. 10 MHz
C. 10 GHz
D. 10 THz
,Correct Answer: B. 10 MHz. Rationale: 10 million hertz is expressed as 10 MHz
(megahertz) .
6. Each television channel in the U.S. is _____ wide.
A. 3 MHz
B. 6 MHz
C. 10 MHz
D. 12 MHz
Correct Answer: B. 6 MHz. Rationale: Each television channel in the U.S. is 6 MHz
wide .
7. The highest frequency band in the broadcast television frequency spectrum is
the _____ band.
A. VHF
B. UHF
C. SHF
D. EHF
Correct Answer: B. UHF. Rationale: The UHF (Ultra High Frequency) band is the
highest frequency band in the broadcast television spectrum .
8. What is the primary purpose of wearing Personal Protective Equipment (PPE)
such as safety glasses and hard hats while performing broadband installation
tasks?
A. To comply with company dress codes only
B. To protect the installer from physical hazards such as flying debris, electrical
shocks, and head impacts during construction or aerial/underground work
C. To improve cellular reception inside customer homes
D. To prevent the cable modem from overheating
, Correct Answer: B. To protect the installer from physical hazards such as flying
debris, electrical shocks, and head impacts during construction or
aerial/underground work. Rationale: Safety is paramount in broadband
installation. PPE safeguards installers against environmental and worksite
hazards, including eye injury from wire clippings and head trauma from tools or
overhead drops .
9. What is broadband?
A. Narrowband signal
B. High-speed internet access
C. Analog-only system
D. Radio-only system
Correct Answer: B. High-speed internet access. Rationale: Broadband provides
high-speed data transmission over multiple technologies .
10. Fiber optic cable transmits data using _____.
A. Electricity
B. Light
C. Magnetism
D. Sound
Correct Answer: B. Light. Rationale: Fiber uses light pulses for high-speed data
transmission .
11. What does ISP stand for?
A. Internet Service Provider
B. Internal Signal Process
C. Internet Safety Protocol
D. Integrated Service Point
