Fiber Testing and Maintenance Exam Questions and Answers 100% Pass

Fiber Testing and Maintenance Exam Questions and Answers 100% Pass What topology do most fiber-to-the-user (FTTx) networks use, which requires greater fiver color code management in its documentation? - Answer- Point-to-multipoint (P2MP) Improper use of nylon tie wraps can induce this problem: - Answer- Microbends What are potential sources of problems in aerial installations? - Answer- Falling branches, pole attachment problems, and improper sag and loading considerations. During installation of fiber-optic cable, what does damage to the cable jacket cause? - Answer- Moisture migration into the cable. In a fiber-optic network, - Answer- The role of maintenance is to proactively maintain network tolerances and recognize, locate, and remedy potential problems. A fiber-optic network maintenance plan should be developed with which of the following in mind? - Answer- The task of compiling the physical document must become the responsibility of an identifiable position or organization. What is the best way to prevent problems in outside fiber-optic splice enclosures? - Answer- The outer jacket and the internal cable structures must be secured individually to protect the closure and splice trays from the effects of expansion and contraction. The troubleshooting process - Answer- should include steps that identify, analyze, and locate the problem as well as diagnose its source, repair the problem, and test to ensure the problem is resolved. When testing the fiber-optic plant, - Answer- An optical power meter is used to measure the strength of light signals anywhere in a fiber system where a connection can be made As changes are introduced to a fiber-optic network, - Answer- Documentation must be updated to reflect the new configuration and performance data. As-built - Answer- Drawings, route maps, and notes that provide an accurate representation of a network and its key points in order to simplify maintenance and restoration tasks. System margin - Answer- The amount of attenuation, in dB, that the system can absorb before the system fails. Definition of Point-to-multipoint (P2MP) - Answer- A network topology that specifies a direct connection from a central or common location to multiple network locations. Optoelectronics - Answer- any technology that responds to light waves or is used in a fiber plant, such as a laser, photodiode, optical coupler or amplifier, etc. Patch Panel - Answer- Also known as a connector panel, uses interconnection sleeves mounted on a panel, which accommodates an individual optical fiber connection on one side and an equipment connection on the other side. Microbend - Answer- small imperfections in the core/cladding boundary of a fiver that attenuate the optical signal. Besides RS-232 ports, what type of interface is common on a power meter? - Answer- A USB interface can provide easy download of information to a PC. Optical power meters used for testing fiber-to-the-user (FTTx) installations operating downstream from the headend should be calibrated for which wavelengths? - Answer- 1,490 nm, 1,550 nm, and 1,577 nm. A wavelength-isolating power meter is most commonly used in - Answer- Point-to- multipoint FTTx installations. Optical loss test sets perform multiple functions because they include the features of multiple pieces of test sets. The features of which other test sets are combined into an optical loss test set? - Answer- A stabilized light source, an optical return loss meter, an enhanced optical power meter, and an optical talk set. Regarding various optical power meter types, - Answer- Enhanced power meters evolved for roles where measurements need to be easily stored, recalled, transmitted, and downloaded. When measuring transmit and receive power with an optical power meter, - Answer- The meter's calibration must be traceable to the National Institute of Standards Technology (NIST). When measuring end-to-end attenuation, - Answer- The light source and optical power meter must be referenced together prior to making any field measurement. A light source - Answer- Is crucial for accurately measuring optical fiber power and attenuation When a laser light source is used to test fibers, - Answer- A 2 kHz modulation provides a test signal that allows the fiber under test to be detected by an optical fiber identifier. Optical fiber identifiers - Answer- Detect live traffic signals or modulated test signals on an individual optical fiber.