[2023年06月]更新のOSP-002試験問題集、無料サンプル365日更新
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質問 # 65
Even \_\_\_\_\_\_ require cabling connections in a network.
- A. Wireless access points
- B. Mobile phones
- C. Laptop computers
- D. Blackberries
正解：A
質問 # 66
The principle of operation of OTDRs is similar to \_\_\_\_\_\_\_.
- A. Lenses
- B. Radar
- C. Mirrors
- D. Power meters and sources
正解：B
質問 # 67
Singlemode fiber systems covering long distances and using DWDM use \_\_\_\_\_\_\_\_\_\_ sources.
- A. F-P laser
- B. LED
- C. DFB laser
- D. VCSEL
正解：C
質問 # 68
Gigabit Ethernet uses all four pairs of a UTP cable \_\_\_\_\_\_\_\_\_.
- A. Simultaneously and bidirectionally
- B. Bidirectionally
- C. With 2 pairs in each direction
- D. For power
正解：A
質問 # 69
A client hired an ICT distribution designer who is designing some additional capacity for a customer owned aerial outside plant. Which of the following would be a PRIMARY consideration?
- A. Utility coordination with public utilities verifies minimum inductive interference.
- B. Sufficient space exists to install additional guying if required.
- C. That all of the poles on the path are at least Class 3.
- D. Clearances will still be adequate with the added equipment.
正解：D
質問 # 70
Wireless networks are really used to replace ________.
- A. Structured cabling
- B. The patchcord that connects a PC to a wall outlet connection
- C. Routers
- D. Backbone cabling
正解：B
質問 # 71
Until Gigabit Ethernet, LANs only used \_\_\_\_\_\_ pairs of the UTP cable.
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
質問 # 72
The \_\_\_\_\_\_\_\_\_\_ protects the fiber from harm.
- A. Jacket
- B. Primary buffer coating
- C. Aramid fiber strength members
- D. All of the above
正解：D
質問 # 73
Rays of light transmitted in multimode fiber are called \_\_\_\_\_\_\_\_\_\_.
- A. Modes
- B. Reflections
- C. Waves
- D. Refractions
正解：A
質問 # 74
Outside plant cabling can be installed by \_\_\_\_\_\_\_\_\_\_.
- A. Direct burial
- B. Aerial suspension
- C. All of the above
- D. Pulling it underground in conduit
正解：C
質問 # 75
Most \_\_\_\_\_\_\_\_\_ are designed to allow easy pulling to simplify installation.
- A. Ropes
- B. Cable boxes
- C. Cables
- D. Cable trays
正解：B
質問 # 76
What is the core size of 1300 - 1550 nm singlemode fiber?
- A. 63.5 microns
- B. 9 microns
- C. 50 microns
- D. 5 mm
正解：B
質問 # 77
Singlemode fiber has a __________ light-carrying core than multimode fiber.
- A. Larger
- B. Smaller
- C. Same size
正解：B
質問 # 78
What copper cable types are included in the TIA-568 structured cabling standards?
- A. UTP (unshielded twisted pair), STP (shielded twisted pair) and coax
- B. UTP (unshielded twisted pair) and coax
- C. UTP (unshielded twisted pair), ScTP (screened twisted pair) and STP (shielded twisted pair)
- D. Any communications cable
正解：C
質問 # 79
If you use a Cat 3 UTP jack on newer Cat 5e cable plant, the link performance will meet \_\_\_\_\_\_specs.
- A. Cat 5
- B. Cat 6
- C. Cat 3
- D. Cat 5E
正解：C
質問 # 80
What do category ratings of UTP cable (e.g. Cat 3, Cat 5e, Cat 6 and Cat 6A) mean?
- A. Flame retardance of the cable
- B. How far the cable will work in networks
- C. How well the cables are made
- D. The performance level of UTP cable
正解：D
質問 # 81
What cable types are included in the TIA-568 structured cabling standards?
- A. UTP (unshielded twisted pair), STP (shielded twisted pair) and coax
- B. UTP (unshielded twisted pair), ScTP (screened twisted pair) and STP (shielded twisted pair)
- C. UTP (unshielded twisted pair) and coax
- D. UTP (unshielded twisted pair), ScTP (screened twisted pair), STP (shielded twisted pair) and fiber optics
正解：D
質問 # 82
Rolling objects create what type of load on an access flooring system?
- A. Virtual
- B. Dynamic
- C. Static
- D. Impact
- E. Physical
正解：D
質問 # 83
What is the derating factor for a 24 AWG (0.51 mm) stranded cords?
- A. 60%
- B. 20%
- C. 10%
- D. 30%
- E. 50%
正解：B
質問 # 84
Structured cabling standards call for a maximum length of multimode fiber optic cable for backbones of
\_\_\_\_\_\_\_\_\_\_.
- A. 1000 meters
- B. 2000 meters
- C. 3000 meters
- D. 800 meters
正解：B
質問 # 85
For planning office layout, each user should be allocated \_\_\_\_\_\_\_ floor space.
- A. 3 sq m
- B. Adequate
- C. shared
- D. 100 sq ft
正解：D
質問 # 86
To maintain rated performance, twists in each pair must be maintained to within \_\_\_\_\_\_\_ of the termination.
- A. 25 mm
- B. 1 inch
- C. 2.5 cm
- D. 1/2 inch
正解：D
質問 # 87
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