BICSI Technician Practice Exam 2025-2026 -Questions And
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1. Which color is typically used for grounding conductors in telecommunications cabling?
A. Green
B. White
C. Black
D. Blue
Answer: A
Rationale: Green (or green with yellow stripe) is the standard color for grounding conductors to
ensure safety.
2. What is the maximum allowable cable bend radius for Category 6 twisted-pair cable?
A. 2× the cable diameter
B. 4× the cable diameter
C. 10× the cable diameter
D. 20× the cable diameter
Answer: B
Rationale: Maintaining a bend radius of at least 4× the cable diameter prevents performance
degradation.
3. What does ANSI/TIA/EIA-568 standard cover?
A. Telecommunications cabling standards
B. Electrical wiring in homes
C. Fire safety protocols
D. HVAC installation
Answer: A
Rationale: TIA/EIA-568 specifies structured cabling standards for commercial buildings.
,4. Which type of cable is best for high-speed Ethernet over short distances in buildings?
A. Cat 5e
B. Cat 6
C. Fiber optic
D. Coaxial
Answer: B
Rationale: Cat 6 supports up to 10 Gbps over shorter distances and is commonly used for
Ethernet LANs.
5. What is the main purpose of a telecommunications grounding system?
A. Protect equipment and personnel from electrical faults
B. Improve data transmission speed
C. Reduce cable weight
D. Increase signal strength
Answer: A
Rationale: Grounding prevents damage from electrical surges and ensures safety.
6. Which connector type is commonly used with Category 5e and 6 twisted-pair cables?
A. RJ45
B. RJ11
C. LC
D. ST
Answer: A
Rationale: RJ45 connectors are standard for Ethernet networking with twisted-pair cabling.
7. What is the primary function of a patch panel?
A. Organize and interconnect multiple cables
B. Increase signal strength
C. Provide Wi-Fi coverage
D. Protect cables from fire
Answer: A
Rationale: Patch panels serve as a central point to connect and manage network cables.
, 8. Which type of fiber optic cable is most suitable for long-distance transmission?
A. Single-mode
B. Multi-mode
C. Coaxial
D. Twisted pair
Answer: A
Rationale: Single-mode fiber has a small core and low attenuation, ideal for long distances.
9. What is the maximum allowable horizontal cable length in a structured cabling system?
A. 50 meters
B. 90 meters
C. 100 meters
D. 120 meters
Answer: B
Rationale: TIA/EIA standards specify a maximum horizontal cabling length of 90 meters (295
feet).
10. Which tool is used to terminate twisted-pair network cables?
A. Punch-down tool
B. Wire stripper
C. Cable tester
D. Crimper
Answer: D
Rationale: A crimper attaches connectors such as RJ45 to the cable ends.
11. What is the typical impedance of twisted-pair Ethernet cable?
A. 50 Ω
B. 75 Ω
C. 100 Ω
D. 120 Ω
Answers Latest Updates With Correct Answers 100% With
Complete Solutions Pass Guaranteed-Graded A+
1. Which color is typically used for grounding conductors in telecommunications cabling?
A. Green
B. White
C. Black
D. Blue
Answer: A
Rationale: Green (or green with yellow stripe) is the standard color for grounding conductors to
ensure safety.
2. What is the maximum allowable cable bend radius for Category 6 twisted-pair cable?
A. 2× the cable diameter
B. 4× the cable diameter
C. 10× the cable diameter
D. 20× the cable diameter
Answer: B
Rationale: Maintaining a bend radius of at least 4× the cable diameter prevents performance
degradation.
3. What does ANSI/TIA/EIA-568 standard cover?
A. Telecommunications cabling standards
B. Electrical wiring in homes
C. Fire safety protocols
D. HVAC installation
Answer: A
Rationale: TIA/EIA-568 specifies structured cabling standards for commercial buildings.
,4. Which type of cable is best for high-speed Ethernet over short distances in buildings?
A. Cat 5e
B. Cat 6
C. Fiber optic
D. Coaxial
Answer: B
Rationale: Cat 6 supports up to 10 Gbps over shorter distances and is commonly used for
Ethernet LANs.
5. What is the main purpose of a telecommunications grounding system?
A. Protect equipment and personnel from electrical faults
B. Improve data transmission speed
C. Reduce cable weight
D. Increase signal strength
Answer: A
Rationale: Grounding prevents damage from electrical surges and ensures safety.
6. Which connector type is commonly used with Category 5e and 6 twisted-pair cables?
A. RJ45
B. RJ11
C. LC
D. ST
Answer: A
Rationale: RJ45 connectors are standard for Ethernet networking with twisted-pair cabling.
7. What is the primary function of a patch panel?
A. Organize and interconnect multiple cables
B. Increase signal strength
C. Provide Wi-Fi coverage
D. Protect cables from fire
Answer: A
Rationale: Patch panels serve as a central point to connect and manage network cables.
, 8. Which type of fiber optic cable is most suitable for long-distance transmission?
A. Single-mode
B. Multi-mode
C. Coaxial
D. Twisted pair
Answer: A
Rationale: Single-mode fiber has a small core and low attenuation, ideal for long distances.
9. What is the maximum allowable horizontal cable length in a structured cabling system?
A. 50 meters
B. 90 meters
C. 100 meters
D. 120 meters
Answer: B
Rationale: TIA/EIA standards specify a maximum horizontal cabling length of 90 meters (295
feet).
10. Which tool is used to terminate twisted-pair network cables?
A. Punch-down tool
B. Wire stripper
C. Cable tester
D. Crimper
Answer: D
Rationale: A crimper attaches connectors such as RJ45 to the cable ends.
11. What is the typical impedance of twisted-pair Ethernet cable?
A. 50 Ω
B. 75 Ω
C. 100 Ω
D. 120 Ω
