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CERTIFIED FIBER OPTICS FINAL EXAM, FIBER
OPTICS FINAL TEST, FIBER INSTALLATION AND
TESTING, OPTICAL FIBER CERTIFICATION, FIBER
TROUBLESHOOTING, VERIFIED ANSWERS, FIBER
OPTICS TECHNICIAN EXAM 2025 UPDATE
The three types of Small Form Factor (SFF) connector styles are - CORRECT ANSWER✔✔ LC, MC-RJ, MPO The connector strain relief and adapter housing for an OM1 62.5/125 um fiber is ____ - CORRECT ANSWER✔✔ serge ferrules may be made up of _____,_____, and _____ - CORRECT ANSWER✔✔ ceramic, plastic, steel Ceramic ferrules are made of either______ oxide or _______ oxide - CORRECT ANSWER✔✔ Aluminum, Zironium Single mode terminations are typically performed with factory______ - CORRECT ANSWER✔✔ Pigtails
The maximum insertion loss for a connector pair per ANSI/TIA- 568 - C.3 is _____ db - CORRECT ANSWER✔✔. The maximum insertion loss for a connector pair per Telcordia GR-326 Core standard is ____ - CORRECT ANSWER✔✔ .2db The LC connector has a ___ diameter ferrule. - CORRECT ANSWER✔✔ 1.25mm The _____ style of connector depends on the cleaver for optimum performance. - CORRECT ANSWER✔✔ No polish the applications of optical fiber communications have increased at a rapid rate, since the first commercial instillation of a fiber optic system in the - CORRECT ANSWER✔✔ 1970's The loss of a signal strength is called - CORRECT ANSWER✔✔ attenuation A single binary digit Is called a - CORRECT ANSWER✔✔ Bit
the deflection of light is called_____ - CORRECT ANSWER✔✔ refraction when light passes from one medium to another some of the light energy is _____back into the first material - CORRECT ANSWER✔✔ Reflected The refractive index profile describes the relation between the indices of ____ and ______.The core of the multimode optical fiber has the highest refractive index. - CORRECT ANSWER✔✔ Core, Cladding What makes up an optical fiber - CORRECT ANSWER✔✔ core, cladding, coating mode is another name for - CORRECT ANSWER✔✔ Path single mode fiber have a _____core than multimode fibers - CORRECT ANSWER✔✔ smaller the part of the multimode optical fiber that functions as a mode filter is the______ - CORRECT ANSWER✔✔ cladding
The standard core diameters of multimode fiber are___ and ___um. - CORRECT ANSWER✔✔ 50nm, 62. _______strength is the ability of a fiber to be stretched or pulled without breaking - CORRECT ANSWER✔✔ Tensile The Tensile strength of a fiber is_______ when it is bent - CORRECT ANSWER✔✔ Refracted The number of modes in an optical fiber decreases as the ___increases - CORRECT ANSWER✔✔ Wavelength Bandwidth is and effective indication of the rate at which____ can be sent - CORRECT ANSWER✔✔ Intelligence Graded index fibers uses numerous concentric layers of glass to reduce______ - CORRECT ANSWER✔✔ Modal Dispersion The number of modes in an optical fiber ____as the core diameter decreases - CORRECT ANSWER✔✔ Decreases
the rule of thumb for the bend radius of and inside, indoor-outdoor, outside, and/or drop cable when not subjected to Tensile loading is ___ times the outside diameter. - CORRECT ANSWER✔✔ 10 times Material safety data sheets are ____ when chemicals are used - CORRECT ANSWER✔✔ Required NA mismatch is an___ factor - CORRECT ANSWER✔✔ Intrinsic Lateral displacement and end separation are ____ factors - CORRECT ANSWER✔✔ Extrensic __________ control includes having the fiber face perpendicular to the fiber axis, which is function or proper fiber cleaning or polishing - CORRECT ANSWER✔✔ Angular Misalignment The _______ is most important requirement for a good mechanical and/or fusion slice - CORRECT ANSWER✔✔ Cleaver
A Fusion slicer uses and ___ to heat fibers to about____ degrees Celsius. - CORRECT ANSWER✔✔ electric, 2000 degrees The maximum loss for an indoor mechanical or fusion slice per ANSI?TIA- 568 - C.3 is ___ dB. - CORRECT ANSWER✔✔ 0.30, List the Five desirable features for a fiber optic connector or splice. - CORRECT ANSWER✔✔ Concentricity, low loss, Easy Inser, Economical, repeatability List three types of factors that causes loss in fiber optic interconnections. - CORRECT ANSWER✔✔ Intrinsic, Extrinsic, system Return reflection or Return loss can be reduced by rounding the fiber end with a _______ or _________ finish. - CORRECT ANSWER✔✔ Angular contact or physical contact the array connector is typically attached to a ____ cable - CORRECT ANSWER✔✔ Ribbon
A_____ cable is one that runs vertically between the floors of building - CORRECT ANSWER✔✔ Riser Plenum cables are fire retardant and____ - CORRECT ANSWER✔✔ Low Smoke Breakout cables have several individual ________cables inside an outer jacket - CORRECT ANSWER✔✔ simplex _______ cables have several individual tight buffered fibers inside and outer jacket - CORRECT ANSWER✔✔ Distribution ___________Kits route loose tube 250um buffered fibers into 900um tight buffer fibers tubes ready for connectorization - CORRECT ANSWER✔✔ Fan Out Kit OFNR is and optical fiber - CORRECT ANSWER✔✔ non conductive Riser OFCR is and optical fiber - CORRECT ANSWER✔✔ Conductive riser
OFNP is and optical fiber - CORRECT ANSWER✔✔ non conductive plenum OFCP is and optical fiber - CORRECT ANSWER✔✔ Conductive plenum The approximate length of the fiber cable is determined by reviewing the _______ at both ends on length of fiber cable - CORRECT ANSWER✔✔ Sequential marker The installation load on a cable is the _____term load that a cable can withstand during installation - CORRECT ANSWER✔✔ Short Term The operating Load is the_____ term load that a cable can withstand - CORRECT ANSWER✔✔ Long Composite fiber optic cables are cables that contain optical fiber as well as _________ as specified by the national electric code - CORRECT ANSWER✔✔ Current Carrying conductory the armor in an armored fiber optic cable protectes the cable from - CORRECT ANSWER✔✔ Rodants
A fiber optic installer must follow ____,____ and local building codes when installing fiber optic cables. - CORRECT ANSWER✔✔ Federal, State A Fiber optic installer should allow for extra ____ when installing a cable to allow for future changes or restorations in the network design. - CORRECT ANSWER✔✔ Slack ________ plant cables are permitted to be installed in the building as long as the cable dose not exceed 15m(50 ft) - CORRECT ANSWER✔✔ Outside Multimode fiber optic systems typically operate at____ and ____ using a _____ source - CORRECT ANSWER✔✔ LED single mode fiber optic systems typically operate at ______ and ______ source - CORRECT ANSWER✔✔ 850 - 1310, 1300-1550, LED Laser (LAN's) typically used _______ sources and Wide Area Networks typically used________sources - CORRECT ANSWER✔✔ LED, Laser
The newest laser optimized multimode optical fiber Is designed for 1 Gigabit per second or greater data rates in communication system utilizing an___ nm vertically cavity surface-emitting laser(VCSEL) - CORRECT ANSWER✔✔ 850 The spectral width of an LED is _____ spectral width of a laser - CORRECT ANSWER✔✔ Wider a Laser has a____ output then an LED - CORRECT ANSWER✔✔ Higher stimulated emission is the process where each photon has the same ___, phase relationship, and ____ as the first photon - CORRECT ANSWER✔✔ wavelength , Direction Fiber optic receivers typically use a _____to detect light - CORRECT ANSWER✔✔ Photodiode the tensile load rating or tension specification specifies the ______ of the fiber optic cable. - CORRECT ANSWER✔✔ Strength
Unlike copper cables fiber optic cables are immune to - CORRECT ANSWER✔✔ Radiation A typical Fiber optic cable is __ lighter than a copper cable - CORRECT ANSWER✔✔ 9 times Since optical fiber is a ________ it presents no spark or hazard - CORRECT ANSWER✔✔ dielectric Fiber optics is a very secure transmission medium because it does not _____ energy that can be received by an antenna - CORRECT ANSWER✔✔ Radiate Light emitting Diodes and lasers typically use red light in the ____range for diagnostics and trouble shooting. - CORRECT ANSWER✔✔ 635 - 650 One of the most simple, quick and accurate tests to identify a break in an optical fiber is with a _________ - CORRECT ANSWER✔✔ Fault Isolater
Loss in a fiber optic cable can be measured with a ____ and _____ - CORRECT ANSWER✔✔ Fos , FOM A ________ is a convenient way to analyze and quantify losses in a fiber optic link. - CORRECT ANSWER✔✔ Power Budget The _______ meter requires the fiber optics installer to conduct a periodic and traceable reference calibration - CORRECT ANSWER✔✔ optical power OTDR stand for - CORRECT ANSWER✔✔ Optical Time Domain Reflectometer the correct _____ or ________ required for an OTDR to make accurate measurements. - CORRECT ANSWER✔✔ index and refractions An OTDR relies on the ________ of light that occurs in an optical fiber. - CORRECT ANSWER✔✔ Back seatter AN Otdr screen displays time/distance on the _______ axis and power on the _____ axis - CORRECT ANSWER✔✔ Horizontal and Vertical
