1
BICSI Installer 1 Exam/ Questions with Correct Verified Solutions/ Latest Update 2024/ Rated A+
Fiber color code - ANS - Blue, Orange, Green, Brown, Slate, White, Red, Black, Yellow, Violet, Rose, Aqua
What device converts a computers digital signal into 1s and 0s into two separate analog frequencies for transmission on a standard telephone line? - ANS - Modem
What type of coaxial cable is used for video in backbone distribution? - ANS - Series 11
What type of BNC connector is not recommended for any install? - ANS - Screw on
What type of coaxial connector cannot be used with cables that have stranded center conductors? - ANS
- F connectors
NVP - ANS - Nominal Velocity of Propagation
Insertion loss - ANS - The difference in the amount of power received before and after something is inserted into the circuit.
Resistance - ANS - Resistance is expressed in Ohms, and is the property of a conductor to resist the flow of electricity through it. V=IR
Inductance - ANS - Is a property of an electromagnetic field built around a conductor that opposes any change in the current flow in a circuit
- / 3
2 Capacitance - ANS - is a property of conductors that allows storage of electric charges when potential differences exist between the conductors.
Impedance (V) - ANS - Total opposition of current flow measured in Ohms
American Wire Gauge (AWG) - ANS - A standard rating that indicates the diameter of a wire, such as the conducting core of a coaxial cable or the twisted pairs in a UTP cable.
Megahertz (MHz) - ANS - one million hertz, especially as a measure of the frequency of transmissions
Megabit (Mb) - ANS - Approximately one million bits. Often used as a measurement of data transfer throughput.
What are the steps in trouble shooting copper cables? - ANS - -verifying the problem -isolating the source of the problem -repairing the problem -testing the repaired system to ensure it functions properly
What are the three phases of testing? - ANS - Phase 1 - visual verification Phase 2 - testing cables with correct equipment Phase 3 - documentation
Bandwidth - ANS - The amount of data that can be transmitted over a network in a given amount of time.
cladding - ANS - The glass or plastic shield around the core of a fiber-optic cable. Cladding reflects light back to the core in patterns that vary depending on the transmission mode. This reflection allows fiber to bend around corners without impairing the light-based signal.
Multimode Fiber (MMF) - ANS - Larger core with multiple paths of light. Common for backbone and horizontal cabling in buildings. OM2 - Not recommended for new installs. OM3 - Higher bandwidth. OM4
- Highest bandwidth for MMF. 2000m/6500ft limitation. 850 nm and 1300 nm (nanometers) 2 / 3
3
Single mode Fiber - ANS - Smaller core with only one path of lights. Horizontal, riser, campus environments.
- um core, 125 um cladding.
OS1 - LAN, tight buffered construction, 1310/1550 nm OS2 - Outside Plant, 1310, 1490, 1550, 1625 nm 3000m/9842ft limitations.
Ribbon Fiber - ANS - Multiple 250 um fibers bonded into a flat color-coded ribbon. Can splice a bunch at a time.
Fiber - Tight buffer diameter - ANS - 900 um
Fiber - Acrylate coating diameter - ANS - 250 um
OM1 - ANS - 850 nm OFL - 200 MHz•km (3.5dB/km) 1300 nm - 400 MHz•km (1.5dB/km)
OM2 - ANS - 850 nm OFL - 500MHz•km (3.5dB/km) 1300nm - 500MHz•km (1.5dB/km)
OM3 - ANS - 850 nm OFL - 1500MHz•km (3.5dB/km) 850 nm RFL - 2000MHz•km (3.5dB/km) 1300 nm - 500MHz•km (1.5dB/km)
OM4 - ANS - 850 nm OFL - 3500MHz•km (3.5dB/km) 850 nm RFL - 4700MHz•km (3.5dB/km) 1300 nm - 500MHz•km (1.5dB/km)
- / 3