CALIFORNIA TELECOMMUNICATIONS
TECHNICIAN CERTIFICATION EXAM
PRACTICE QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF
1. What is the standard impedance of coaxial cable used in
telecommunications?
A. 50 ohms
B. 75 ohms
C. 100 ohms
D. 120 ohms
75-ohm coaxial cable is standard for telecommunications and video
applications due to minimal signal loss.
2. Which connector is commonly used with twisted-pair cables for
Ethernet?
A. BNC
B. RJ-45
C. F-Type
D. ST
, RJ-45 connectors are standard for terminating twisted-pair Ethernet
cables.
3. Which organization develops and maintains telecommunications
wiring standards like TIA/EIA-568?
A. FCC
B. TIA
C. NEC
D. IEEE
TIA (Telecommunications Industry Association) sets many cabling and
wiring standards.
4. What does attenuation refer to in telecommunications?
A. Increase in power
B. Signal loss over distance
C. Signal amplification
D. Electrical interference
Attenuation refers to the gradual loss of signal strength over distance.
5. Which of the following cable types is best suited for long-distance
backbone installation?
A. Cat5e
B. Fiber optic
C. Coaxial
D. Shielded twisted pair
Fiber optic cables offer the best performance for long distances and
high bandwidth.
6. What is the maximum recommended length for a Cat6 Ethernet cable
segment?
A. 50 meters
B. 75 meters
C. 100 meters
, D. 150 meters
100 meters is the maximum length for Cat6 cable to maintain
performance.
7. Which term describes unwanted signals that interfere with a desired
signal?
A. Gain
B. Noise
C. Load
D. Phase shift
Noise refers to any undesired signals that interfere with the original
transmission.
8. Which color pair is associated with the first pair in TIA/EIA-568B
wiring?
A. Green/white
B. Orange/white
C. Blue/white
D. Brown/white
In both 568A and 568B, the blue/white pair is considered the first pair.
9. What does the acronym VOIP stand for?
A. Video over IP
B. Voice over Internet Protocol
C. Virtual Optical Integrated Protocol
D. Virtual Output Input Protocol
VOIP refers to transmitting voice communications over IP networks.
10. Which type of fiber optic cable has a larger core and is better
suited for shorter distances?
A. Single-mode
B. Multi-mode
C. Hybrid
TECHNICIAN CERTIFICATION EXAM
PRACTICE QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF
1. What is the standard impedance of coaxial cable used in
telecommunications?
A. 50 ohms
B. 75 ohms
C. 100 ohms
D. 120 ohms
75-ohm coaxial cable is standard for telecommunications and video
applications due to minimal signal loss.
2. Which connector is commonly used with twisted-pair cables for
Ethernet?
A. BNC
B. RJ-45
C. F-Type
D. ST
, RJ-45 connectors are standard for terminating twisted-pair Ethernet
cables.
3. Which organization develops and maintains telecommunications
wiring standards like TIA/EIA-568?
A. FCC
B. TIA
C. NEC
D. IEEE
TIA (Telecommunications Industry Association) sets many cabling and
wiring standards.
4. What does attenuation refer to in telecommunications?
A. Increase in power
B. Signal loss over distance
C. Signal amplification
D. Electrical interference
Attenuation refers to the gradual loss of signal strength over distance.
5. Which of the following cable types is best suited for long-distance
backbone installation?
A. Cat5e
B. Fiber optic
C. Coaxial
D. Shielded twisted pair
Fiber optic cables offer the best performance for long distances and
high bandwidth.
6. What is the maximum recommended length for a Cat6 Ethernet cable
segment?
A. 50 meters
B. 75 meters
C. 100 meters
, D. 150 meters
100 meters is the maximum length for Cat6 cable to maintain
performance.
7. Which term describes unwanted signals that interfere with a desired
signal?
A. Gain
B. Noise
C. Load
D. Phase shift
Noise refers to any undesired signals that interfere with the original
transmission.
8. Which color pair is associated with the first pair in TIA/EIA-568B
wiring?
A. Green/white
B. Orange/white
C. Blue/white
D. Brown/white
In both 568A and 568B, the blue/white pair is considered the first pair.
9. What does the acronym VOIP stand for?
A. Video over IP
B. Voice over Internet Protocol
C. Virtual Optical Integrated Protocol
D. Virtual Output Input Protocol
VOIP refers to transmitting voice communications over IP networks.
10. Which type of fiber optic cable has a larger core and is better
suited for shorter distances?
A. Single-mode
B. Multi-mode
C. Hybrid
