BICSI Certification BICSI Cabling Infrastructure 2 — Questions and Answers
Question 1: What is the maximum allowable mutual capacitance per unit length for Category 6 UTP cable?
- 330 pF/100m
- 56 pF/100m (Correct answer)
- 20 pF/100m
- 100 pF/100m
Correct answer: 56 pF/100m
Category 6 UTP cable has a maximum mutual capacitance of 56 pF/100m as specified in ANSI/TIA-568-C.2.
Question 2: Which type of cable is required for plenum-rated applications in US buildings?
- PVC-jacketed cable
- CMP-rated cable (Correct answer)
- CMR-rated cable
- CM-rated cable
Correct answer: CMP-rated cable
CMP (Communications Multipurpose Plenum) rated cable is required for installation in air-handling spaces (plenums) in US buildings.
Question 3: What does NEXT stand for in cabling performance testing?
- Network Extension Transmission
- Near-End Crosstalk (Correct answer)
- Noise Excitation Transmission Test
- Near-End Transfer
Correct answer: Near-End Crosstalk
NEXT stands for Near-End Crosstalk, which measures the interference between pairs measured at the same end where the signal is injected.
Question 4: According to BICSI standards, what is the recommended minimum clearance in front of a telecommunications rack?
- 600 mm
- 900 mm (Correct answer)
- 1200 mm
- 1500 mm
Correct answer: 900 mm
BICSI recommends a minimum clearance of 900 mm (approximately 36 inches) in front of telecommunications racks for proper access and maintenance.
Question 5: Which standard governs the color coding of telecommunications cabling terminations on 110-type punch-down blocks?
- ANSI/TIA-568-B.1 (Correct answer)
- ANSI/TIA-606
- ANSI/TIA-569
- ANSI/TIA-758
Correct answer: ANSI/TIA-568-B.1
ANSI/TIA-568-B.1 defines the color coding for terminating horizontal and backbone cabling on 110-type and other punch-down blocks.
Question 6: What is the primary advantage of using shielded twisted pair (STP) cable over UTP in BICSI-recommended installations?
- Lower cost
- Easier termination
- Better EMI immunity and reduced alien crosstalk (Correct answer)
- Greater flexibility
Correct answer: Better EMI immunity and reduced alien crosstalk
Shielded twisted pair cable provides better immunity to electromagnetic interference (EMI) and reduces alien crosstalk compared to UTP, especially in high-noise environments.
BICSI Certification BICSI Cabling Infrastructure 2
What is the maximum allowable mutual capacitance per unit length for Category 6 UTP cable?