BICSI Installer 1 Questions + Answers Graded A+

25-pair color code - Answer-White - Blue, orange, green, brown, slate Red - Blue, orange, green, brown, slate Black - Blue, orange, green, brown, slate Yellow - Blue, orange, green, brown, slate Violet - Blue, orange, green, brown, slate Fiber color code - Answer-Blue, Orange, Green, Brown, Slate, White, Red, Black, Yellow, Violet, Rose, Aqua NVP - Answer-Nominal Velocity of Propagation Insertion loss - Answer-The difference in the amount of power received before and after something is inserted into the circuit. Resistance - Answer-Resistance is expressed in Ohms, and is the property of a conductor to resist the flow of electricity through it. V=IR Inductance - Answer-Is a property of an electromagnetic field built around a conductor that opposes any change in the current flow in a circuit Capacitance - Answer-is a property of conductors that allows storage of electric charges when potential differences exist between the conductors. Impedance (V) - Answer-Total opposition of current flow measured in Ohms American Wire Gauge (AWG) - Answer-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) - Answer-one million hertz, especially as a measure of the frequency of transmissionsMegabit (Mb) - Answer-Approximately one million bits. Often used as a measurement of data transfer throughput. Bandwidth - Answer-The amount of data that can be transmitted over a network in a given amount of time. Decibel (dB) - Answer-A unit used to compare the loudness of different sounds. Crosstalk - Answer-when data bleeds from one pair to another in a cable Alien Crosstalk (AXT) - Answer-Unwanted signal coupling from one permanent link to another USOC - Answer-Universal Service Order Code Coaxial cable types - Answer-Series-6 and Series-11 Coaxial connectors - Answer-Series-6 uses BNC and F connectors Series-11 uses F and N connectors Fiber connectors - Answer-SC, ST, and SST(LC or cladding - Answer-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) - Answer-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) Singlemode Fiber - Answer-Smaller core with only one path of lights. Horizontal, riser, campus environments. 9 um core, 125 um cladding. OS1 - LAN, tight buffered construction, 1310/1550 nmOS2 - Outside Plant, 1310, 1490, 1550, 1625 nm 3000m/9842ft limtations. Ribbon Fiber - Answer-Multiple 250 um fibers bonded into a flat color coded ribbon. Can splice a bunch at a time. Fiber - Tight buffer diameter - Answer-900 um Fiber - Acrylate coating diameter - Answer-250 um OM1 - Answer-850 nm OFL - 200 MHz•km (3.5dB/km) 1300 nm - 400 MHz•km (1.5dB/km) OM2 - Answer-850 nm OFL - 500MHz•km (3.5dB/km) 1300nm - 500MHz•km (1.5dB/km) OM3 - Answer-850 nm OFL - 1500MHz•km (3.5dB/km) 850 nm RFL - 2000MHz•km (3.5dB/km) 1300 nm - 500MHz•km (1.5dB/km) OM4 - Answer-850 nm OFL - 3500MHz•km (3.5dB/km) 850 nm RFL - 4700MHz•km (3.5dB/km) 1300 nm - 500MHz•km (1.5dB/km)