[Sep-2025] INSTC_V8 Dumps Full Questions - Cabling Installation Exam Study Guide
Exam Questions and Answers for INSTC_V8 Study Guide
NEW QUESTION # 39
Which of the following steps should be performed first when an installer is pulling backbone cable from the bottom up?
- A. Verify the proper cable run
- B. Determine appropriate rope size
- C. Move cable reels into place
- D. Label cables and reels
Answer: A
NEW QUESTION # 40
Which of the following is a benefit of air-blown optical fiber cable?
- A. It is significantly cheaper than other types of cables
- B. It requires less testing than other types of cables
- C. It can be recovered and reused
Answer: C
NEW QUESTION # 41
When bonding a shielded twisted-pair cable system, which of the following must be ensured to comply with proper grounding and bonding practices?
- A. Only the outer jacket is stripped back to expose the shield at the connector
- B. The cable shield is bonded to a non-conductive anchor to prevent ground loops
- C. The shield is folded back outside of the connector for easy visual inspection
- D. The drain wire or shield foil is securely bonded to the connecting hardware or patch panel that is connected to the TGB/TMGB
Answer: D
NEW QUESTION # 42
What is the specified performance level for Category 8 cable?
- A. 2000 MHz
- B. 100 MHz
- C. 1000 MHz
- D. 250 MHz
Answer: A
NEW QUESTION # 43
When pulling backbone cable in a vertical shaft, which of the following safety measures is MOST important to prevent cable stress and potential damage?
- A. Using guide pulleys every 2 m (6 ft) of the pathway
- B. Pulling from the top floor downward to reduce friction
- C. Ensuring the fill ratio is below 70%
- D. Securing cables at intermediate support points to reduce tension buildup
Answer: D
NEW QUESTION # 44
What type of coaxial cable is used for video backbone distribution?
- A. RG 58
- B. Series 6
- C. RG 59
- D. Series 11
Answer: D
NEW QUESTION # 45
During a fiber optic cable installation, the cable manufacturer specifies a maximum tensile load of 2700 N (600 lb). What is the TYPICAL recommended maximum pulling tension you should not exceed for short pulls, to ensure safety margins?
- A. 2700 N (600 lb)
- B. 1890 N (425 lb)
- C. 810 N (180 lb)
- D. 1350 N (300 lb)
Answer: D
NEW QUESTION # 46
Which term describes using an LC connector on a fiber cable for the main cable plant side, and SC connector for the equipment side, in the same patch panel adapter?
- A. Transitional attenuation
- B. Duplex bridging
- C. Mode mixing
- D. Hybrid adapter coupling
Answer: D
NEW QUESTION # 47
What is the minimum number of consolidation points that should serve an open office furniture cluster?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 48
Light pulses in optical fiber cables are subjected to a loss in power as the light pulses travel along the optical fiber. Which of the following terms is used to describe this phenomenon?
- A. Crosstalk
- B. Frequency
- C. Grounding
- D. Attenuation
Answer: D
NEW QUESTION # 49
What method of transmission is used to transmit signals during a telephone call?
- A. Half-duplex
- B. Simplex
- C. Full duplex
Answer: C
NEW QUESTION # 50
When verifying polarity in a duplex fiber installation (e.g., LC to LC), which method is MOST commonly used to ensure correct transmitter-to-receiver alignment?
- A. Light source and power meter, verifying signal from Tx on one end is received on Rx at the other
- B. Checking the cable manufacturer's datasheet for polarity orientation
- C. Use of color-coded connectors (blue for transmit, red for receive)
- D. Visual inspection of the outer jacket color
Answer: A
NEW QUESTION # 51
What is the most appropriate administration class for an infrastructure with multiple telecommunications spaces within one building?
- A. Class 4
- B. Class 3
- C. Class 2
- D. Class 1
Answer: C
NEW QUESTION # 52
During a retrofit, an installation crew discovers old insulation that they think may contain asbestos, they cannot complete their work without disturbing the insulation. What is the best course of action for the crew to take?
- A. Wear breathing protection during the task
- B. Stop work immediately
- C. Remove the asbestos-containing substance
- D. Monitor the air quality while they work
Answer: B
NEW QUESTION # 53
A cross-connect in the Telecommunications Room uses 110-blocks. Which parameter is MOST important to verify after performing cross-connects?
- A. That block label colors match the TIA standard
- B. The block's brand matches the cable manufacturer
- C. A 25 mm (1 in) cable slack behind the block
- D. Continuity and wire map for each pair
Answer: D
NEW QUESTION # 54
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