EESTX 33302 Fiber Optics (25 Hours) Practice Exam

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• Which term describes the light traveling through the cladding of a fiber optic cable?
• What is the definition of modal dispersion?
• What is the primary difference between single-mode and multi-mode fibers?
• A type of fiber optic cable that uses a hard plastic tube with an inside diameter several times larger than that of the fiber is called _____.
• What device is used to convert electrical signals into optical signals?
• Most mechanical splices incorporate a sleeve or collar that aligns the fiber ends and secures them with _____.
• What is attenuation compensation in fiber optics?
• A fusion splicer uses a(n) _____ to join glass fibers together.
• What is the refractive index?
• How should a connector align two fibers to minimize lateral displacement?
• What is typically the core diameter of multi-mode fiber?
• A particular problem with edge-emitting laser diodes is that _____.
• A(n) _____ splice uses ferrules that are rotated when the splice is being made.
• The major disadvantage with blown fiber is that _____.
• The power transmitted through a fiber optic link, as well as the loss through the link, can be tested with a(n) ______.
• What are the major advantages of using fiber optics over traditional copper cables?
• What type of fiber optics is typically used for long-distance communication?
• Why is fiber optic cleanliness so important?
• What does 'margin' refer to in the context of fiber optic loss budgets?
• How does fiber optic security compare to copper cables?
• What does "fiber optic network topology" refer to?
• What is the primary purpose of the cladding in fiber optics?
• When setting up a fiber optic network, why is it important to consider thermal expansion?
• What is the purpose of fiber optic sleeves?
• Which property of light makes fiber optics effective in data transmission?
• The primary consideration in selecting a route for fiber optic cable through cable trays and ducts is to ______.
• How does a low loss connection affect the reliability of a fiber optic system?
• What device is commonly used to measure fiber optic losses?
• How does a VCSEL differ from a traditional laser diode?
• What is the primary benefit of using single-mode fiber compared to multimode fiber?
• What factor is essential for maintaining the integrity of optical fiber communication?
• What is reflection coefficient in fiber optics?
• What is the primary advantage of including a margin in a fiber optic loss budget?
• What is one challenge associated with using fiber optics?
• When pulling fiber optic cables, it is important to connect a pulling line onto ____________.
• Aerial fiber optic cables must either be self-supporting or:
• What is a typical consequence of poor termination in a fiber optic connection?
• What is the role of strength members in a fiber optic cable?
• What is the advantage of using splice trays in fiber optics?
• An interferometer is used to _____.
• What does the NA (Numerical Aperture) indicate in fiber optics?
• What is splicing in fiber optics?
• The part of the fiber optic cable that confines light within the cable is called ____.
• Which of the following statements is true regarding fiber optic cables?
• Which type of fiber optic cable is least susceptible to external environmental conditions?
• What characteristics does a multimode fiber generally have?
• What is defined as 'radiation loss' in fiber optics?
• Applications where remote powering of devices that must be electrically isolated from a power supply can benefit from a technology called _____.
• What is the purpose of an optical repeater?
• What happens to signal quality if fiber cables are bent more than their minimum bend radius?
• What does 'fiber optic degradation' refer to?
• Why is minimizing splicing loss important in fiber optic systems?
• Which tool is primarily used for cleaving fiber optic cables?
• What are the primary materials used to manufacture optical fibers?
• The single major factor in signal attenuation is the _____.
• Which of the following reduces the possibility of signal loss in a fiber optic connection?
• What is the role of buffers in fiber optic cables?
• The purpose of the ferrule of a fiber optic connector is to _____.
• What is the main purpose of a demodulation or decision circuit in fiber optics?
• What does the term 'fiber optic attenuation' refer to?
• The effective performance of a fiber optic system can be evaluated by measuring its _____.
• How do optical couplers function in fiber optics?
• What does the term "fall time" refer to in a fiber optic system?
• The additional coating, or buffer, around the cladding of an optical fiber _____.
• In indoor applications, what is the function of a central distribution point?
• What type of application is least appropriate for polymer optical fibers?
• What role does a wavelength locker play in fiber optic systems?
• What effect does intrinsic attenuation have on fiber optic cables?
• What type of fiber is commonly used for short-distance applications, such as within buildings?
• The number of mating cycles specified for typical connectors used in indoor fiber optic applications is _____.
• Which term describes the loss of signal strength as it travels through a fiber optic cable?
• The light power loss in a splice should be less than _____ dB.
• What does 'signal dispersion' imply in fiber optics?
• In fiber optics, what does the term "data rate" refer to?
• With proper termination, what is the expected performance of a fiber optic system?
• What are polymer optical fibers (POF) primarily used for?
• What phenomenon does chromatic dispersion refer to?
• The range of angles over which a fiber optic strand can accept or emit light is expressed as its _____.
• What is the purpose of buffering in fiber optic cables?
• Which type of optical signal source is known for high efficiency and precision?
• What material is commonly used in outdoor fiber optic cables to prevent air pockets?
• A(n) _____ splitter is made by wrapping two or more fibers together at a central point and heating that point so that the glass will melt into a unified mass.
• What does "OTDR" stand for?
• What does the term “attenuation” refer to in fiber optics?
• Why is laser light described as being coherent?
• What is a key advantage of using optical fibers for data transmission?
• What is the significance of the cutoff wavelength in single-mode fibers?
• What process is used in fusion splicing?
• How does the bandwidth of optical fibers compare to copper wires?
• In fiber optics, what does 'core' refer to?
• What does fiber optic attenuation refer to?
• What is the main difference between LEDs and lasers in fiber optics?
• When an optical power meter is used to measure the strength of a fiber optic light signal, sensors that plug into the unit perform the _____.
• A type of connection error that creates effects similar to the combined effects of axial displacement and end separation is _____.
• Define 'fiber optic network'.
• What is an optical amplifier?
• Which of the following is a characteristic of single-mode fibers?
• What is the expected attenuation for typical single-mode fiber?
• What type of fiber is best suited for long-distance communication?
• What is the primary function of an optical power meter?
• Which common element is typically found in most modern fiber optic connectors?
• A photosensitive detector used to convert a light signal back into an electrical form is a(n) _____.
• The short-term load that a fiber optic cable can withstand during installation is known as the _____.
• A splicing method that holds the two fiber ends together using a clamp and/or glue is known as _____.
• The static load of a fiber optic cable is usually _____.
• What is the principle of light propagation in fiber optics?
• What is a common characteristic of a LC connector?
• What does 'link loss' in fiber optics refer to?
• Plenum-rated fiber optic cables are specifically designed for which environment?
• How does temperature affect fiber optics?
• What is the typical wavelength used for single-mode fiber communication?
• The additional coating of a glass fiber optic strand that goes around the cladding is called a(n) _____.
• Fresnel reflection loss occurs when there is an air gap between two connecting fibers at which of the following points?
• Which sources of light are commonly used in fiber optic transmission?
• What type of modulation is typically used in fiber optic communication?
• Why is proper termination important in fiber optics?
• What does gain refer to in the context of fiber optics?
• As receiver rise and fall time increases, the _____.
• What safety precautions are necessary when handling fiber optics?
• What does the term 'fiber optic installation' encompass?
• What is fiber optic routing primarily concerned with?
• In fiber optics, what is the primary benefit of maintaining low loss connections?
• What is a common application of fiber optics in telecommunications?
• What is the impact of fiber optic scattering?
• What is one of the main limitations of polymer optical fibers?
• In 1870, the British physicist John Tyndall used sunlight and a stream of water to demonstrate how light _____.
• Which of the following is a common application of polymer optical fibers?
• What characterizes the standard usage of polymer optical fibers compared to glass fibers?
• Which characteristic of fiber optics contributes to their high data transfer rates?
• One path that a light ray can travel through the glass core of an optical fiber is called a(n) _____.
• A lightwave connector (LC) is similar to an RJ-45 connector in that it is a _____.
• A mode of light is best defined as a _____.
• What is a photodetector used for in fiber optics?
• The time delay of several rays of light entering a fiber, exiting that fiber at different times, is known as _____.
• How does surface roughness affect fiber optic performance?
• What is the intended outcome of properly splicing optical fibers?
• What is the recommended minimum bend radius for fiber optics during installation?
• What are the benefits of using polarization in fiber optics?
• Which type of fiber optic cable is less suitable for long distances due to modal dispersion?
• What does the insertion loss of a star splitter represent?
• To determine the specific depth requirements for buried fiber optic cables, technicians should adhere to which guidelines?
• What is the purpose of an optical isolator in fiber optics?
• What is the function of a connector in fiber optics?
• What does the term "splice" refer to in fiber optics?
• What is the primary function of an emitter in a fiber optic system?
• Describe 'active' optical devices in the context of fiber optics.
• What is the impact of fiber optic bending loss?
• What environmental factors can affect fiber optics?
• An interferometer is an electronic device that uses reflected light to examine the _____.
• Why is it important to perform a verification test after fiber optic installation?
• The primary purpose of using an OTDR is to _____.
• What is one advantage of using multi-mode fiber over single-mode fiber?
• When fusion splices fail, they typically fail near to, but NOT at, the _____.
• What are the two main types of optical fibers?
• What is the ideal loss requirement for splices and connectors in telecommunication systems?
• What is one characteristic of polymer optical fibers compared to traditional glass fibers?
• What is the typical splicing loss for well-executed fiber optic splices?
• What is the purpose of a patch panel in fiber optic networks?
• What role does a wavelength division multiplexer (WDM) serve in fiber optics?
• Which component is crucial for converting electrical signals into light signals in fiber optics?
• What advantage does fiber optics have over copper in terms of transmission speed?
• Which technology is primarily utilized for increasing the capacity of fiber optic networks?
• What property allows light to be guided within the core of an optical fiber?
• Generally speaking, single-mode fiber is BEST suited for _____.
• Compared to an ST connector, an SC connector is better able to _____.
• Which of the following are common types of fiber optic connectors?
• How does fiber optic technology compare to copper in terms of distance limitations?
• Impact and crush-resistance tests that measure a fiber optic cable's ability to withstand physical stresses are known as _____.
• What are the two layers of an optical fiber?
• What is the main advantage of an LC connector over other types?
• What type of signal do fiber optic cables transmit?
• Devices that secure splices within a splice closure are referred to as what?
• Which specialized component allows telephone companies to send multiple calls over a single fiber optic line?
• What does the bounce effect describe in the context of fiber optics?
• What is the core diameter of typical single-mode fiber?
• Transmitting pulses of light into a glass or plastic fiber, where they reflect off the inner walls of the fiber core until they are received at the opposite end of the cable is _____.
• What does a fiber optic network 'drop' refer to?
• Which type of fiber optic cable is designed for long-distance communication?
• What is the main functionality of a fiber optic splitter?
• In fiber optics, which factor contributes significantly to pulse dispersion over long distances?
• What is a fusion splice?
• Which factor is crucial for ensuring optimal performance in a fiber optic system?
• What is the expected performance outcome when margin is properly included in a fiber optic loss budget?